1

Name___________________________

Grade 11BG Take Home Test 1 Moles moles and more moleshellip

Due October 3rd 2017 by 5pm The test will take place on Tuesday October 17th 2017

____________________________________________________________________________________ Instructions

Please answer each of the following questions in the space provided

Test will be marked out of 100

5 marks will be deducted per day late

There will be no bonus questions

No work no marks

____________________________________________________________________________________

No trick questions here just lots of practice

2

1 The element phosphorus makes up 014 of the earthrsquos crust and is the twelfth most abundant element It occurs principally as the hydrated calcium phosphate Ca3(PO4)2H2O since it is too reactive to be found in the elemental state

a) What is the molecular weight of calcium phosphate

b) How many moles oxygen in 15 moles calcium phosphate

c) How many molecules of calcium phosphate in 28 moles of calcium phosphate

d) How many atoms phosphorus in 06 moles calcium phosphate

3

e) How much does 75 x 1012 molecules of calcium phosphate weigh in grams

f) How many moles calcium phosphate in 5g of the salt

g) What is the mass in grams of 250 molecules of calcium phosphate

h) How many grams phosphorus in 100g calcium phosphate

4

2 Which amount of matter contains the largest number of atoms 75g of sodium Na 125g of Bromine Br2 or 100g of boron B (show all your work)

3 Calculate the number of carbon atoms in each of the following

a) 25 grams of diamond (pure carbon)

b) 25 g ethane (C2H6)

c) 25 g sucrose (C12H22O11)

5

4 Acetylsalicylic acid (aspirin) can be made by reacting Salicylic and acetic acids according to the equation

C7H6O3 + C2H4O2 C9H8O4 + H2O salicylic acetic aspirin water acid acid

a) Determine the masses of salicylic acid and acetic acid required to make 100g of aspirin

b) How many 5-grain (normal size) aspirin tablets can be made from 120g of aspirin (1 grain= 00648g)

6

5 Butane gas (C4H10) is burned in a container with oxygen gas (O2) The reaction is

C4H10 + O2 CO2 + H2O

After the reaction the remaining gaseous mix consists of 245ml H2O How many grams of butane and oxygen were in the flask before the combustion

6 Given a 55mM solution of sulfuric acid (H2SO4) in water

a) How many grams of H2SO4 are present in 200ml sulfuric acid

b) How many moles H2SO4 in 520μl sulfuric acid

7

c) Acidity is determines by the concentration of hydrogen ions How many moles of hydrogen are there in 300ml of sulfuric acid (H2SO4)

7 Calculate the molarity of each of the following solutions

a) 780g sugar (C12H22O11) in a final volume of 200ml

b) 25g NaCl in a final volume of 60ml water

8

c) 284g H3PO4 in a 575ml solution

d) 005mmol NaOH in a final volume of 500ml

e) 131 mg aspartame (C14H18N2O5) in a 355ml can of Diet Cokereg

9

(almost done)

8 How many grams sodium in 25ml of a 2M NaCl solution

9 How many moles CaCl2 in 50ml of a 32M solution

10 How many grams NH4 in 150ml of a 075 mM solution

10

11 For each of the following reactions a) Balance the following reactions b) Determine the amount of the first species (in grams) needed to produce 35 mmol of the last species

11

12 Given the following reaction

Ca(OH)2(s) + 2 HCl(aq) CaCl2(aq) + 2 H2O(l)

How many liters of 0100 M HCl would be required to react completely with 500 grams of calcium hydroxide

13 How many grams of aluminum are required to react with 35 mL of 20 M hydrochloric acid Given

HCl + Al AlCl3 + H2 14 If 45 mL of a 15 M AgNO3 is added to KCl how many grams of AgCl can be formed Given

AgNO3 + KCl AgCl + KNO3

12

15 If 525 mL of 080 M HCl solution is neutralized with 315 mL of Sr(OH)2 solution what is the molarity of the Sr(OH)2 Given

HCl + Sr(OH)2 SrCl2 + H2O 16 When copper (II) chloride reacts with sodium nitrate copper (II) nitrate and sodium chloride are formed as per the following reaction

CuCl2 + 2 NaNO3 Cu(NO3)2 + 2 NaCl If 15 grams of copper (II) chloride react with 20 grams of sodium nitrate a) Which is the limiting reactant

b) how much sodium chloride (NaCl) can be formed (in grams)

c) How many grams remain of the excess reactant

13

17 When lead (II) nitrate reacts with sodium iodide sodium nitrate and lead (II) iodide are formed Pb(NO3)2 (aq) + NaI (aq) PbI2 (s) + Na(NO3) (aq) If I start with 250 moles of lead (II) nitrate and 150 moles of sodium iodide how many grams of sodium nitrate can be formed Show all your work 18 a) If I add 25 mL of water to 125 mL of a 015 M NaOH solution what will the molarity of the diluted solution be b) If I add water to 100 mL of a 015 M NaOH solution until the final volume is 150 mL what will the molarity of the diluted solution be c) If I leave 750 mL of 050 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates what will the new concentration of the sodium chloride solution be

14

d) One liter of a solution is prepared by dissolving 1256 g of NaF in water If I took 180 mL of that solution and diluted it to 500 mL determine the molarity of the resulting solution

e) Challenge Question Exactly 160 mL of a solution A is diluted to 300 mL resulting in a new solution B that has 050 M concentration If the solution was made with NaCl determine the number of grams of NaCl needed to make 100 L of the original solution A

2

1 The element phosphorus makes up 014 of the earthrsquos crust and is the twelfth most abundant element It occurs principally as the hydrated calcium phosphate Ca3(PO4)2H2O since it is too reactive to be found in the elemental state

a) What is the molecular weight of calcium phosphate

b) How many moles oxygen in 15 moles calcium phosphate

c) How many molecules of calcium phosphate in 28 moles of calcium phosphate

d) How many atoms phosphorus in 06 moles calcium phosphate

3

e) How much does 75 x 1012 molecules of calcium phosphate weigh in grams

f) How many moles calcium phosphate in 5g of the salt

g) What is the mass in grams of 250 molecules of calcium phosphate

h) How many grams phosphorus in 100g calcium phosphate

4

2 Which amount of matter contains the largest number of atoms 75g of sodium Na 125g of Bromine Br2 or 100g of boron B (show all your work)

3 Calculate the number of carbon atoms in each of the following

a) 25 grams of diamond (pure carbon)

b) 25 g ethane (C2H6)

c) 25 g sucrose (C12H22O11)

5

4 Acetylsalicylic acid (aspirin) can be made by reacting Salicylic and acetic acids according to the equation

C7H6O3 + C2H4O2 C9H8O4 + H2O salicylic acetic aspirin water acid acid

a) Determine the masses of salicylic acid and acetic acid required to make 100g of aspirin

b) How many 5-grain (normal size) aspirin tablets can be made from 120g of aspirin (1 grain= 00648g)

6

5 Butane gas (C4H10) is burned in a container with oxygen gas (O2) The reaction is

C4H10 + O2 CO2 + H2O

After the reaction the remaining gaseous mix consists of 245ml H2O How many grams of butane and oxygen were in the flask before the combustion

6 Given a 55mM solution of sulfuric acid (H2SO4) in water

a) How many grams of H2SO4 are present in 200ml sulfuric acid

b) How many moles H2SO4 in 520μl sulfuric acid

7

c) Acidity is determines by the concentration of hydrogen ions How many moles of hydrogen are there in 300ml of sulfuric acid (H2SO4)

7 Calculate the molarity of each of the following solutions

a) 780g sugar (C12H22O11) in a final volume of 200ml

b) 25g NaCl in a final volume of 60ml water

8

c) 284g H3PO4 in a 575ml solution

d) 005mmol NaOH in a final volume of 500ml

e) 131 mg aspartame (C14H18N2O5) in a 355ml can of Diet Cokereg

9

(almost done)

8 How many grams sodium in 25ml of a 2M NaCl solution

9 How many moles CaCl2 in 50ml of a 32M solution

10 How many grams NH4 in 150ml of a 075 mM solution

10

11 For each of the following reactions a) Balance the following reactions b) Determine the amount of the first species (in grams) needed to produce 35 mmol of the last species

11

12 Given the following reaction

Ca(OH)2(s) + 2 HCl(aq) CaCl2(aq) + 2 H2O(l)

How many liters of 0100 M HCl would be required to react completely with 500 grams of calcium hydroxide

13 How many grams of aluminum are required to react with 35 mL of 20 M hydrochloric acid Given

HCl + Al AlCl3 + H2 14 If 45 mL of a 15 M AgNO3 is added to KCl how many grams of AgCl can be formed Given

AgNO3 + KCl AgCl + KNO3

12

15 If 525 mL of 080 M HCl solution is neutralized with 315 mL of Sr(OH)2 solution what is the molarity of the Sr(OH)2 Given

HCl + Sr(OH)2 SrCl2 + H2O 16 When copper (II) chloride reacts with sodium nitrate copper (II) nitrate and sodium chloride are formed as per the following reaction

CuCl2 + 2 NaNO3 Cu(NO3)2 + 2 NaCl If 15 grams of copper (II) chloride react with 20 grams of sodium nitrate a) Which is the limiting reactant

b) how much sodium chloride (NaCl) can be formed (in grams)

c) How many grams remain of the excess reactant

13

17 When lead (II) nitrate reacts with sodium iodide sodium nitrate and lead (II) iodide are formed Pb(NO3)2 (aq) + NaI (aq) PbI2 (s) + Na(NO3) (aq) If I start with 250 moles of lead (II) nitrate and 150 moles of sodium iodide how many grams of sodium nitrate can be formed Show all your work 18 a) If I add 25 mL of water to 125 mL of a 015 M NaOH solution what will the molarity of the diluted solution be b) If I add water to 100 mL of a 015 M NaOH solution until the final volume is 150 mL what will the molarity of the diluted solution be c) If I leave 750 mL of 050 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates what will the new concentration of the sodium chloride solution be

14

d) One liter of a solution is prepared by dissolving 1256 g of NaF in water If I took 180 mL of that solution and diluted it to 500 mL determine the molarity of the resulting solution

e) Challenge Question Exactly 160 mL of a solution A is diluted to 300 mL resulting in a new solution B that has 050 M concentration If the solution was made with NaCl determine the number of grams of NaCl needed to make 100 L of the original solution A

3

e) How much does 75 x 1012 molecules of calcium phosphate weigh in grams

f) How many moles calcium phosphate in 5g of the salt

g) What is the mass in grams of 250 molecules of calcium phosphate

h) How many grams phosphorus in 100g calcium phosphate

4

2 Which amount of matter contains the largest number of atoms 75g of sodium Na 125g of Bromine Br2 or 100g of boron B (show all your work)

3 Calculate the number of carbon atoms in each of the following

a) 25 grams of diamond (pure carbon)

b) 25 g ethane (C2H6)

c) 25 g sucrose (C12H22O11)

5

4 Acetylsalicylic acid (aspirin) can be made by reacting Salicylic and acetic acids according to the equation

C7H6O3 + C2H4O2 C9H8O4 + H2O salicylic acetic aspirin water acid acid

a) Determine the masses of salicylic acid and acetic acid required to make 100g of aspirin

b) How many 5-grain (normal size) aspirin tablets can be made from 120g of aspirin (1 grain= 00648g)

6

5 Butane gas (C4H10) is burned in a container with oxygen gas (O2) The reaction is

C4H10 + O2 CO2 + H2O

After the reaction the remaining gaseous mix consists of 245ml H2O How many grams of butane and oxygen were in the flask before the combustion

6 Given a 55mM solution of sulfuric acid (H2SO4) in water

a) How many grams of H2SO4 are present in 200ml sulfuric acid

b) How many moles H2SO4 in 520μl sulfuric acid

7

c) Acidity is determines by the concentration of hydrogen ions How many moles of hydrogen are there in 300ml of sulfuric acid (H2SO4)

7 Calculate the molarity of each of the following solutions

a) 780g sugar (C12H22O11) in a final volume of 200ml

b) 25g NaCl in a final volume of 60ml water

8

c) 284g H3PO4 in a 575ml solution

d) 005mmol NaOH in a final volume of 500ml

e) 131 mg aspartame (C14H18N2O5) in a 355ml can of Diet Cokereg

9

(almost done)

8 How many grams sodium in 25ml of a 2M NaCl solution

9 How many moles CaCl2 in 50ml of a 32M solution

10 How many grams NH4 in 150ml of a 075 mM solution

10

11 For each of the following reactions a) Balance the following reactions b) Determine the amount of the first species (in grams) needed to produce 35 mmol of the last species

11

12 Given the following reaction

Ca(OH)2(s) + 2 HCl(aq) CaCl2(aq) + 2 H2O(l)

How many liters of 0100 M HCl would be required to react completely with 500 grams of calcium hydroxide

13 How many grams of aluminum are required to react with 35 mL of 20 M hydrochloric acid Given

HCl + Al AlCl3 + H2 14 If 45 mL of a 15 M AgNO3 is added to KCl how many grams of AgCl can be formed Given

AgNO3 + KCl AgCl + KNO3

12

15 If 525 mL of 080 M HCl solution is neutralized with 315 mL of Sr(OH)2 solution what is the molarity of the Sr(OH)2 Given

HCl + Sr(OH)2 SrCl2 + H2O 16 When copper (II) chloride reacts with sodium nitrate copper (II) nitrate and sodium chloride are formed as per the following reaction

CuCl2 + 2 NaNO3 Cu(NO3)2 + 2 NaCl If 15 grams of copper (II) chloride react with 20 grams of sodium nitrate a) Which is the limiting reactant

b) how much sodium chloride (NaCl) can be formed (in grams)

c) How many grams remain of the excess reactant

13

17 When lead (II) nitrate reacts with sodium iodide sodium nitrate and lead (II) iodide are formed Pb(NO3)2 (aq) + NaI (aq) PbI2 (s) + Na(NO3) (aq) If I start with 250 moles of lead (II) nitrate and 150 moles of sodium iodide how many grams of sodium nitrate can be formed Show all your work 18 a) If I add 25 mL of water to 125 mL of a 015 M NaOH solution what will the molarity of the diluted solution be b) If I add water to 100 mL of a 015 M NaOH solution until the final volume is 150 mL what will the molarity of the diluted solution be c) If I leave 750 mL of 050 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates what will the new concentration of the sodium chloride solution be

14

d) One liter of a solution is prepared by dissolving 1256 g of NaF in water If I took 180 mL of that solution and diluted it to 500 mL determine the molarity of the resulting solution

e) Challenge Question Exactly 160 mL of a solution A is diluted to 300 mL resulting in a new solution B that has 050 M concentration If the solution was made with NaCl determine the number of grams of NaCl needed to make 100 L of the original solution A

4

2 Which amount of matter contains the largest number of atoms 75g of sodium Na 125g of Bromine Br2 or 100g of boron B (show all your work)

3 Calculate the number of carbon atoms in each of the following

a) 25 grams of diamond (pure carbon)

b) 25 g ethane (C2H6)

c) 25 g sucrose (C12H22O11)

5

4 Acetylsalicylic acid (aspirin) can be made by reacting Salicylic and acetic acids according to the equation

C7H6O3 + C2H4O2 C9H8O4 + H2O salicylic acetic aspirin water acid acid

a) Determine the masses of salicylic acid and acetic acid required to make 100g of aspirin

b) How many 5-grain (normal size) aspirin tablets can be made from 120g of aspirin (1 grain= 00648g)

6

5 Butane gas (C4H10) is burned in a container with oxygen gas (O2) The reaction is

C4H10 + O2 CO2 + H2O

After the reaction the remaining gaseous mix consists of 245ml H2O How many grams of butane and oxygen were in the flask before the combustion

6 Given a 55mM solution of sulfuric acid (H2SO4) in water

a) How many grams of H2SO4 are present in 200ml sulfuric acid

b) How many moles H2SO4 in 520μl sulfuric acid

7

c) Acidity is determines by the concentration of hydrogen ions How many moles of hydrogen are there in 300ml of sulfuric acid (H2SO4)

7 Calculate the molarity of each of the following solutions

a) 780g sugar (C12H22O11) in a final volume of 200ml

b) 25g NaCl in a final volume of 60ml water

8

c) 284g H3PO4 in a 575ml solution

d) 005mmol NaOH in a final volume of 500ml

e) 131 mg aspartame (C14H18N2O5) in a 355ml can of Diet Cokereg

9

(almost done)

8 How many grams sodium in 25ml of a 2M NaCl solution

9 How many moles CaCl2 in 50ml of a 32M solution

10 How many grams NH4 in 150ml of a 075 mM solution

10

11 For each of the following reactions a) Balance the following reactions b) Determine the amount of the first species (in grams) needed to produce 35 mmol of the last species

11

12 Given the following reaction

Ca(OH)2(s) + 2 HCl(aq) CaCl2(aq) + 2 H2O(l)

How many liters of 0100 M HCl would be required to react completely with 500 grams of calcium hydroxide

13 How many grams of aluminum are required to react with 35 mL of 20 M hydrochloric acid Given

HCl + Al AlCl3 + H2 14 If 45 mL of a 15 M AgNO3 is added to KCl how many grams of AgCl can be formed Given

AgNO3 + KCl AgCl + KNO3

12

15 If 525 mL of 080 M HCl solution is neutralized with 315 mL of Sr(OH)2 solution what is the molarity of the Sr(OH)2 Given

HCl + Sr(OH)2 SrCl2 + H2O 16 When copper (II) chloride reacts with sodium nitrate copper (II) nitrate and sodium chloride are formed as per the following reaction

CuCl2 + 2 NaNO3 Cu(NO3)2 + 2 NaCl If 15 grams of copper (II) chloride react with 20 grams of sodium nitrate a) Which is the limiting reactant

b) how much sodium chloride (NaCl) can be formed (in grams)

c) How many grams remain of the excess reactant

13

17 When lead (II) nitrate reacts with sodium iodide sodium nitrate and lead (II) iodide are formed Pb(NO3)2 (aq) + NaI (aq) PbI2 (s) + Na(NO3) (aq) If I start with 250 moles of lead (II) nitrate and 150 moles of sodium iodide how many grams of sodium nitrate can be formed Show all your work 18 a) If I add 25 mL of water to 125 mL of a 015 M NaOH solution what will the molarity of the diluted solution be b) If I add water to 100 mL of a 015 M NaOH solution until the final volume is 150 mL what will the molarity of the diluted solution be c) If I leave 750 mL of 050 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates what will the new concentration of the sodium chloride solution be

14

d) One liter of a solution is prepared by dissolving 1256 g of NaF in water If I took 180 mL of that solution and diluted it to 500 mL determine the molarity of the resulting solution

e) Challenge Question Exactly 160 mL of a solution A is diluted to 300 mL resulting in a new solution B that has 050 M concentration If the solution was made with NaCl determine the number of grams of NaCl needed to make 100 L of the original solution A

5

4 Acetylsalicylic acid (aspirin) can be made by reacting Salicylic and acetic acids according to the equation

C7H6O3 + C2H4O2 C9H8O4 + H2O salicylic acetic aspirin water acid acid

a) Determine the masses of salicylic acid and acetic acid required to make 100g of aspirin

b) How many 5-grain (normal size) aspirin tablets can be made from 120g of aspirin (1 grain= 00648g)

6

5 Butane gas (C4H10) is burned in a container with oxygen gas (O2) The reaction is

C4H10 + O2 CO2 + H2O

After the reaction the remaining gaseous mix consists of 245ml H2O How many grams of butane and oxygen were in the flask before the combustion

6 Given a 55mM solution of sulfuric acid (H2SO4) in water

a) How many grams of H2SO4 are present in 200ml sulfuric acid

b) How many moles H2SO4 in 520μl sulfuric acid

7

c) Acidity is determines by the concentration of hydrogen ions How many moles of hydrogen are there in 300ml of sulfuric acid (H2SO4)

7 Calculate the molarity of each of the following solutions

a) 780g sugar (C12H22O11) in a final volume of 200ml

b) 25g NaCl in a final volume of 60ml water

8

c) 284g H3PO4 in a 575ml solution

d) 005mmol NaOH in a final volume of 500ml

e) 131 mg aspartame (C14H18N2O5) in a 355ml can of Diet Cokereg

9

(almost done)

8 How many grams sodium in 25ml of a 2M NaCl solution

9 How many moles CaCl2 in 50ml of a 32M solution

10 How many grams NH4 in 150ml of a 075 mM solution

10

11 For each of the following reactions a) Balance the following reactions b) Determine the amount of the first species (in grams) needed to produce 35 mmol of the last species

11

12 Given the following reaction

Ca(OH)2(s) + 2 HCl(aq) CaCl2(aq) + 2 H2O(l)

How many liters of 0100 M HCl would be required to react completely with 500 grams of calcium hydroxide

13 How many grams of aluminum are required to react with 35 mL of 20 M hydrochloric acid Given

HCl + Al AlCl3 + H2 14 If 45 mL of a 15 M AgNO3 is added to KCl how many grams of AgCl can be formed Given

AgNO3 + KCl AgCl + KNO3

12

15 If 525 mL of 080 M HCl solution is neutralized with 315 mL of Sr(OH)2 solution what is the molarity of the Sr(OH)2 Given

HCl + Sr(OH)2 SrCl2 + H2O 16 When copper (II) chloride reacts with sodium nitrate copper (II) nitrate and sodium chloride are formed as per the following reaction

CuCl2 + 2 NaNO3 Cu(NO3)2 + 2 NaCl If 15 grams of copper (II) chloride react with 20 grams of sodium nitrate a) Which is the limiting reactant

b) how much sodium chloride (NaCl) can be formed (in grams)

c) How many grams remain of the excess reactant

13

17 When lead (II) nitrate reacts with sodium iodide sodium nitrate and lead (II) iodide are formed Pb(NO3)2 (aq) + NaI (aq) PbI2 (s) + Na(NO3) (aq) If I start with 250 moles of lead (II) nitrate and 150 moles of sodium iodide how many grams of sodium nitrate can be formed Show all your work 18 a) If I add 25 mL of water to 125 mL of a 015 M NaOH solution what will the molarity of the diluted solution be b) If I add water to 100 mL of a 015 M NaOH solution until the final volume is 150 mL what will the molarity of the diluted solution be c) If I leave 750 mL of 050 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates what will the new concentration of the sodium chloride solution be

14

d) One liter of a solution is prepared by dissolving 1256 g of NaF in water If I took 180 mL of that solution and diluted it to 500 mL determine the molarity of the resulting solution

e) Challenge Question Exactly 160 mL of a solution A is diluted to 300 mL resulting in a new solution B that has 050 M concentration If the solution was made with NaCl determine the number of grams of NaCl needed to make 100 L of the original solution A

6

5 Butane gas (C4H10) is burned in a container with oxygen gas (O2) The reaction is

C4H10 + O2 CO2 + H2O

After the reaction the remaining gaseous mix consists of 245ml H2O How many grams of butane and oxygen were in the flask before the combustion

6 Given a 55mM solution of sulfuric acid (H2SO4) in water

a) How many grams of H2SO4 are present in 200ml sulfuric acid

b) How many moles H2SO4 in 520μl sulfuric acid

7

c) Acidity is determines by the concentration of hydrogen ions How many moles of hydrogen are there in 300ml of sulfuric acid (H2SO4)

7 Calculate the molarity of each of the following solutions

a) 780g sugar (C12H22O11) in a final volume of 200ml

b) 25g NaCl in a final volume of 60ml water

8

c) 284g H3PO4 in a 575ml solution

d) 005mmol NaOH in a final volume of 500ml

e) 131 mg aspartame (C14H18N2O5) in a 355ml can of Diet Cokereg

9

(almost done)

8 How many grams sodium in 25ml of a 2M NaCl solution

9 How many moles CaCl2 in 50ml of a 32M solution

10 How many grams NH4 in 150ml of a 075 mM solution

10

11 For each of the following reactions a) Balance the following reactions b) Determine the amount of the first species (in grams) needed to produce 35 mmol of the last species

11

12 Given the following reaction

Ca(OH)2(s) + 2 HCl(aq) CaCl2(aq) + 2 H2O(l)

How many liters of 0100 M HCl would be required to react completely with 500 grams of calcium hydroxide

13 How many grams of aluminum are required to react with 35 mL of 20 M hydrochloric acid Given

HCl + Al AlCl3 + H2 14 If 45 mL of a 15 M AgNO3 is added to KCl how many grams of AgCl can be formed Given

AgNO3 + KCl AgCl + KNO3

12

15 If 525 mL of 080 M HCl solution is neutralized with 315 mL of Sr(OH)2 solution what is the molarity of the Sr(OH)2 Given

HCl + Sr(OH)2 SrCl2 + H2O 16 When copper (II) chloride reacts with sodium nitrate copper (II) nitrate and sodium chloride are formed as per the following reaction

CuCl2 + 2 NaNO3 Cu(NO3)2 + 2 NaCl If 15 grams of copper (II) chloride react with 20 grams of sodium nitrate a) Which is the limiting reactant

b) how much sodium chloride (NaCl) can be formed (in grams)

c) How many grams remain of the excess reactant

13

17 When lead (II) nitrate reacts with sodium iodide sodium nitrate and lead (II) iodide are formed Pb(NO3)2 (aq) + NaI (aq) PbI2 (s) + Na(NO3) (aq) If I start with 250 moles of lead (II) nitrate and 150 moles of sodium iodide how many grams of sodium nitrate can be formed Show all your work 18 a) If I add 25 mL of water to 125 mL of a 015 M NaOH solution what will the molarity of the diluted solution be b) If I add water to 100 mL of a 015 M NaOH solution until the final volume is 150 mL what will the molarity of the diluted solution be c) If I leave 750 mL of 050 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates what will the new concentration of the sodium chloride solution be

14

d) One liter of a solution is prepared by dissolving 1256 g of NaF in water If I took 180 mL of that solution and diluted it to 500 mL determine the molarity of the resulting solution

e) Challenge Question Exactly 160 mL of a solution A is diluted to 300 mL resulting in a new solution B that has 050 M concentration If the solution was made with NaCl determine the number of grams of NaCl needed to make 100 L of the original solution A

7

c) Acidity is determines by the concentration of hydrogen ions How many moles of hydrogen are there in 300ml of sulfuric acid (H2SO4)

7 Calculate the molarity of each of the following solutions

a) 780g sugar (C12H22O11) in a final volume of 200ml

b) 25g NaCl in a final volume of 60ml water

8

c) 284g H3PO4 in a 575ml solution

d) 005mmol NaOH in a final volume of 500ml

e) 131 mg aspartame (C14H18N2O5) in a 355ml can of Diet Cokereg

9

(almost done)

8 How many grams sodium in 25ml of a 2M NaCl solution

9 How many moles CaCl2 in 50ml of a 32M solution

10 How many grams NH4 in 150ml of a 075 mM solution

10

11 For each of the following reactions a) Balance the following reactions b) Determine the amount of the first species (in grams) needed to produce 35 mmol of the last species

11

12 Given the following reaction

Ca(OH)2(s) + 2 HCl(aq) CaCl2(aq) + 2 H2O(l)

How many liters of 0100 M HCl would be required to react completely with 500 grams of calcium hydroxide

13 How many grams of aluminum are required to react with 35 mL of 20 M hydrochloric acid Given

HCl + Al AlCl3 + H2 14 If 45 mL of a 15 M AgNO3 is added to KCl how many grams of AgCl can be formed Given

AgNO3 + KCl AgCl + KNO3

12

15 If 525 mL of 080 M HCl solution is neutralized with 315 mL of Sr(OH)2 solution what is the molarity of the Sr(OH)2 Given

HCl + Sr(OH)2 SrCl2 + H2O 16 When copper (II) chloride reacts with sodium nitrate copper (II) nitrate and sodium chloride are formed as per the following reaction

CuCl2 + 2 NaNO3 Cu(NO3)2 + 2 NaCl If 15 grams of copper (II) chloride react with 20 grams of sodium nitrate a) Which is the limiting reactant

b) how much sodium chloride (NaCl) can be formed (in grams)

c) How many grams remain of the excess reactant

13

17 When lead (II) nitrate reacts with sodium iodide sodium nitrate and lead (II) iodide are formed Pb(NO3)2 (aq) + NaI (aq) PbI2 (s) + Na(NO3) (aq) If I start with 250 moles of lead (II) nitrate and 150 moles of sodium iodide how many grams of sodium nitrate can be formed Show all your work 18 a) If I add 25 mL of water to 125 mL of a 015 M NaOH solution what will the molarity of the diluted solution be b) If I add water to 100 mL of a 015 M NaOH solution until the final volume is 150 mL what will the molarity of the diluted solution be c) If I leave 750 mL of 050 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates what will the new concentration of the sodium chloride solution be

14

d) One liter of a solution is prepared by dissolving 1256 g of NaF in water If I took 180 mL of that solution and diluted it to 500 mL determine the molarity of the resulting solution

e) Challenge Question Exactly 160 mL of a solution A is diluted to 300 mL resulting in a new solution B that has 050 M concentration If the solution was made with NaCl determine the number of grams of NaCl needed to make 100 L of the original solution A

8

c) 284g H3PO4 in a 575ml solution

d) 005mmol NaOH in a final volume of 500ml

e) 131 mg aspartame (C14H18N2O5) in a 355ml can of Diet Cokereg

9

(almost done)

8 How many grams sodium in 25ml of a 2M NaCl solution

9 How many moles CaCl2 in 50ml of a 32M solution

10 How many grams NH4 in 150ml of a 075 mM solution

10

11 For each of the following reactions a) Balance the following reactions b) Determine the amount of the first species (in grams) needed to produce 35 mmol of the last species

11

12 Given the following reaction

Ca(OH)2(s) + 2 HCl(aq) CaCl2(aq) + 2 H2O(l)

How many liters of 0100 M HCl would be required to react completely with 500 grams of calcium hydroxide

13 How many grams of aluminum are required to react with 35 mL of 20 M hydrochloric acid Given

HCl + Al AlCl3 + H2 14 If 45 mL of a 15 M AgNO3 is added to KCl how many grams of AgCl can be formed Given

AgNO3 + KCl AgCl + KNO3

12

15 If 525 mL of 080 M HCl solution is neutralized with 315 mL of Sr(OH)2 solution what is the molarity of the Sr(OH)2 Given

HCl + Sr(OH)2 SrCl2 + H2O 16 When copper (II) chloride reacts with sodium nitrate copper (II) nitrate and sodium chloride are formed as per the following reaction

CuCl2 + 2 NaNO3 Cu(NO3)2 + 2 NaCl If 15 grams of copper (II) chloride react with 20 grams of sodium nitrate a) Which is the limiting reactant

b) how much sodium chloride (NaCl) can be formed (in grams)

c) How many grams remain of the excess reactant

13

17 When lead (II) nitrate reacts with sodium iodide sodium nitrate and lead (II) iodide are formed Pb(NO3)2 (aq) + NaI (aq) PbI2 (s) + Na(NO3) (aq) If I start with 250 moles of lead (II) nitrate and 150 moles of sodium iodide how many grams of sodium nitrate can be formed Show all your work 18 a) If I add 25 mL of water to 125 mL of a 015 M NaOH solution what will the molarity of the diluted solution be b) If I add water to 100 mL of a 015 M NaOH solution until the final volume is 150 mL what will the molarity of the diluted solution be c) If I leave 750 mL of 050 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates what will the new concentration of the sodium chloride solution be

14

d) One liter of a solution is prepared by dissolving 1256 g of NaF in water If I took 180 mL of that solution and diluted it to 500 mL determine the molarity of the resulting solution

e) Challenge Question Exactly 160 mL of a solution A is diluted to 300 mL resulting in a new solution B that has 050 M concentration If the solution was made with NaCl determine the number of grams of NaCl needed to make 100 L of the original solution A

9

(almost done)

8 How many grams sodium in 25ml of a 2M NaCl solution

9 How many moles CaCl2 in 50ml of a 32M solution

10 How many grams NH4 in 150ml of a 075 mM solution

10

11 For each of the following reactions a) Balance the following reactions b) Determine the amount of the first species (in grams) needed to produce 35 mmol of the last species

11

12 Given the following reaction

Ca(OH)2(s) + 2 HCl(aq) CaCl2(aq) + 2 H2O(l)

How many liters of 0100 M HCl would be required to react completely with 500 grams of calcium hydroxide

13 How many grams of aluminum are required to react with 35 mL of 20 M hydrochloric acid Given

HCl + Al AlCl3 + H2 14 If 45 mL of a 15 M AgNO3 is added to KCl how many grams of AgCl can be formed Given

AgNO3 + KCl AgCl + KNO3

12

15 If 525 mL of 080 M HCl solution is neutralized with 315 mL of Sr(OH)2 solution what is the molarity of the Sr(OH)2 Given

HCl + Sr(OH)2 SrCl2 + H2O 16 When copper (II) chloride reacts with sodium nitrate copper (II) nitrate and sodium chloride are formed as per the following reaction

CuCl2 + 2 NaNO3 Cu(NO3)2 + 2 NaCl If 15 grams of copper (II) chloride react with 20 grams of sodium nitrate a) Which is the limiting reactant

b) how much sodium chloride (NaCl) can be formed (in grams)

c) How many grams remain of the excess reactant

13

17 When lead (II) nitrate reacts with sodium iodide sodium nitrate and lead (II) iodide are formed Pb(NO3)2 (aq) + NaI (aq) PbI2 (s) + Na(NO3) (aq) If I start with 250 moles of lead (II) nitrate and 150 moles of sodium iodide how many grams of sodium nitrate can be formed Show all your work 18 a) If I add 25 mL of water to 125 mL of a 015 M NaOH solution what will the molarity of the diluted solution be b) If I add water to 100 mL of a 015 M NaOH solution until the final volume is 150 mL what will the molarity of the diluted solution be c) If I leave 750 mL of 050 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates what will the new concentration of the sodium chloride solution be

14

d) One liter of a solution is prepared by dissolving 1256 g of NaF in water If I took 180 mL of that solution and diluted it to 500 mL determine the molarity of the resulting solution

e) Challenge Question Exactly 160 mL of a solution A is diluted to 300 mL resulting in a new solution B that has 050 M concentration If the solution was made with NaCl determine the number of grams of NaCl needed to make 100 L of the original solution A

10

11 For each of the following reactions a) Balance the following reactions b) Determine the amount of the first species (in grams) needed to produce 35 mmol of the last species

11

12 Given the following reaction

Ca(OH)2(s) + 2 HCl(aq) CaCl2(aq) + 2 H2O(l)

How many liters of 0100 M HCl would be required to react completely with 500 grams of calcium hydroxide

13 How many grams of aluminum are required to react with 35 mL of 20 M hydrochloric acid Given

HCl + Al AlCl3 + H2 14 If 45 mL of a 15 M AgNO3 is added to KCl how many grams of AgCl can be formed Given

AgNO3 + KCl AgCl + KNO3

12

15 If 525 mL of 080 M HCl solution is neutralized with 315 mL of Sr(OH)2 solution what is the molarity of the Sr(OH)2 Given

HCl + Sr(OH)2 SrCl2 + H2O 16 When copper (II) chloride reacts with sodium nitrate copper (II) nitrate and sodium chloride are formed as per the following reaction

CuCl2 + 2 NaNO3 Cu(NO3)2 + 2 NaCl If 15 grams of copper (II) chloride react with 20 grams of sodium nitrate a) Which is the limiting reactant

b) how much sodium chloride (NaCl) can be formed (in grams)

c) How many grams remain of the excess reactant

13

17 When lead (II) nitrate reacts with sodium iodide sodium nitrate and lead (II) iodide are formed Pb(NO3)2 (aq) + NaI (aq) PbI2 (s) + Na(NO3) (aq) If I start with 250 moles of lead (II) nitrate and 150 moles of sodium iodide how many grams of sodium nitrate can be formed Show all your work 18 a) If I add 25 mL of water to 125 mL of a 015 M NaOH solution what will the molarity of the diluted solution be b) If I add water to 100 mL of a 015 M NaOH solution until the final volume is 150 mL what will the molarity of the diluted solution be c) If I leave 750 mL of 050 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates what will the new concentration of the sodium chloride solution be

14

d) One liter of a solution is prepared by dissolving 1256 g of NaF in water If I took 180 mL of that solution and diluted it to 500 mL determine the molarity of the resulting solution

e) Challenge Question Exactly 160 mL of a solution A is diluted to 300 mL resulting in a new solution B that has 050 M concentration If the solution was made with NaCl determine the number of grams of NaCl needed to make 100 L of the original solution A

11

12 Given the following reaction

Ca(OH)2(s) + 2 HCl(aq) CaCl2(aq) + 2 H2O(l)

How many liters of 0100 M HCl would be required to react completely with 500 grams of calcium hydroxide

13 How many grams of aluminum are required to react with 35 mL of 20 M hydrochloric acid Given

HCl + Al AlCl3 + H2 14 If 45 mL of a 15 M AgNO3 is added to KCl how many grams of AgCl can be formed Given

AgNO3 + KCl AgCl + KNO3

12

15 If 525 mL of 080 M HCl solution is neutralized with 315 mL of Sr(OH)2 solution what is the molarity of the Sr(OH)2 Given

HCl + Sr(OH)2 SrCl2 + H2O 16 When copper (II) chloride reacts with sodium nitrate copper (II) nitrate and sodium chloride are formed as per the following reaction

CuCl2 + 2 NaNO3 Cu(NO3)2 + 2 NaCl If 15 grams of copper (II) chloride react with 20 grams of sodium nitrate a) Which is the limiting reactant

b) how much sodium chloride (NaCl) can be formed (in grams)

c) How many grams remain of the excess reactant

13

17 When lead (II) nitrate reacts with sodium iodide sodium nitrate and lead (II) iodide are formed Pb(NO3)2 (aq) + NaI (aq) PbI2 (s) + Na(NO3) (aq) If I start with 250 moles of lead (II) nitrate and 150 moles of sodium iodide how many grams of sodium nitrate can be formed Show all your work 18 a) If I add 25 mL of water to 125 mL of a 015 M NaOH solution what will the molarity of the diluted solution be b) If I add water to 100 mL of a 015 M NaOH solution until the final volume is 150 mL what will the molarity of the diluted solution be c) If I leave 750 mL of 050 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates what will the new concentration of the sodium chloride solution be

14

d) One liter of a solution is prepared by dissolving 1256 g of NaF in water If I took 180 mL of that solution and diluted it to 500 mL determine the molarity of the resulting solution

e) Challenge Question Exactly 160 mL of a solution A is diluted to 300 mL resulting in a new solution B that has 050 M concentration If the solution was made with NaCl determine the number of grams of NaCl needed to make 100 L of the original solution A

12

15 If 525 mL of 080 M HCl solution is neutralized with 315 mL of Sr(OH)2 solution what is the molarity of the Sr(OH)2 Given

HCl + Sr(OH)2 SrCl2 + H2O 16 When copper (II) chloride reacts with sodium nitrate copper (II) nitrate and sodium chloride are formed as per the following reaction

CuCl2 + 2 NaNO3 Cu(NO3)2 + 2 NaCl If 15 grams of copper (II) chloride react with 20 grams of sodium nitrate a) Which is the limiting reactant

b) how much sodium chloride (NaCl) can be formed (in grams)

c) How many grams remain of the excess reactant

13

17 When lead (II) nitrate reacts with sodium iodide sodium nitrate and lead (II) iodide are formed Pb(NO3)2 (aq) + NaI (aq) PbI2 (s) + Na(NO3) (aq) If I start with 250 moles of lead (II) nitrate and 150 moles of sodium iodide how many grams of sodium nitrate can be formed Show all your work 18 a) If I add 25 mL of water to 125 mL of a 015 M NaOH solution what will the molarity of the diluted solution be b) If I add water to 100 mL of a 015 M NaOH solution until the final volume is 150 mL what will the molarity of the diluted solution be c) If I leave 750 mL of 050 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates what will the new concentration of the sodium chloride solution be

14

d) One liter of a solution is prepared by dissolving 1256 g of NaF in water If I took 180 mL of that solution and diluted it to 500 mL determine the molarity of the resulting solution

e) Challenge Question Exactly 160 mL of a solution A is diluted to 300 mL resulting in a new solution B that has 050 M concentration If the solution was made with NaCl determine the number of grams of NaCl needed to make 100 L of the original solution A

13

17 When lead (II) nitrate reacts with sodium iodide sodium nitrate and lead (II) iodide are formed Pb(NO3)2 (aq) + NaI (aq) PbI2 (s) + Na(NO3) (aq) If I start with 250 moles of lead (II) nitrate and 150 moles of sodium iodide how many grams of sodium nitrate can be formed Show all your work 18 a) If I add 25 mL of water to 125 mL of a 015 M NaOH solution what will the molarity of the diluted solution be b) If I add water to 100 mL of a 015 M NaOH solution until the final volume is 150 mL what will the molarity of the diluted solution be c) If I leave 750 mL of 050 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates what will the new concentration of the sodium chloride solution be

14

d) One liter of a solution is prepared by dissolving 1256 g of NaF in water If I took 180 mL of that solution and diluted it to 500 mL determine the molarity of the resulting solution

e) Challenge Question Exactly 160 mL of a solution A is diluted to 300 mL resulting in a new solution B that has 050 M concentration If the solution was made with NaCl determine the number of grams of NaCl needed to make 100 L of the original solution A

14

d) One liter of a solution is prepared by dissolving 1256 g of NaF in water If I took 180 mL of that solution and diluted it to 500 mL determine the molarity of the resulting solution

e) Challenge Question Exactly 160 mL of a solution A is diluted to 300 mL resulting in a new solution B that has 050 M concentration If the solution was made with NaCl determine the number of grams of NaCl needed to make 100 L of the original solution A