AP ChemistryAP ChemistryChapter 13 JeopardyChapter 13 Jeopardy

Jennie L. BordersJennie L. Borders

Round 1 – Chapter 13 Round 1 – Chapter 13

SolubilitySolubility Mole Mole FractionFraction MolarityMolarity Colligative Colligative

PropertiesPropertiesFP, BP, FP, BP,

VPVP SurpriseSurprise

100 100 100 100 100 100

200 200 200 200 200 200

300 300 300 300 300 300

400 400 400 400 400 400

500 500 500 500 500 500

Solubility 100Solubility 100

If the formation of a solution is If the formation of a solution is endothermic, then how can it be endothermic, then how can it be

spontaneous?spontaneous?

Increase in entropyIncrease in entropy

Solubility 200Solubility 200

Based on intermolecular forces, Based on intermolecular forces, why does Cwhy does C88HH1818 not dissolve in not dissolve in

HH22O?O?HH22O has hydrogen bonding and O has hydrogen bonding and

CC88HH1818 has London dispersion. has London dispersion.

These intermolecular forces are These intermolecular forces are very different. (Like dissolves like.)very different. (Like dissolves like.)

Solubility 300Solubility 300Gases are the most soluble in Gases are the most soluble in liquids a _______ pressures and liquids a _______ pressures and

_______ temperatures._______ temperatures.

High, lowHigh, low

Solubility 400Solubility 400

Which of the following substances Which of the following substances would be the most soluble in would be the most soluble in

CClCCl44??

CHCH33CHCH22OH, HOH, H22O, NHO, NH33, C, C1010HH2222, NaCl, NaCl

CC1010HH2222

Solubility 500Solubility 500

Which of the following substances Which of the following substances would be most soluble in hexane would be most soluble in hexane

(C(C66HH1414)?)?

CHCH33OH, CHOH, CH33CHCH22CHCH22OH, OH,

CHCH33CHCH22OH, CHOH, CH33CHCH22CHCH22CHCH22OH, OH,

CHCH33CHCH22CHCH22CHCH22CHCH22OHOHCHCH33CHCH22CHCH22CHCH22CHCH22OHOH

Mole Fraction 100Mole Fraction 100

What is the mole fraction of He in a What is the mole fraction of He in a gaseous solution prepared from gaseous solution prepared from 4.0g of He, 6.5g of Ar, and 10.0g 4.0g of He, 6.5g of Ar, and 10.0g

of Ne? of Ne?

0.6010.601

Mole Fraction 200Mole Fraction 200

What is the mole fraction of urea What is the mole fraction of urea (molar mass = 60 g/mol) in a (molar mass = 60 g/mol) in a

solution prepared by dissolving solution prepared by dissolving 16g of urea in 39g of H16g of urea in 39g of H22O?O?

0.110.11

Mole Fraction 300Mole Fraction 300

Calculate the mole fraction of Calculate the mole fraction of hydrochloric acid in a 10% by hydrochloric acid in a 10% by

mass aqueous solution.mass aqueous solution.

0.053 0.053

Mole Fraction 400Mole Fraction 400

Calculate the mole fraction of Calculate the mole fraction of phosphoric acid in a 25.4% by phosphoric acid in a 25.4% by

mass aqueous solution.mass aqueous solution.

0.0590.059

Mole Fraction 500Mole Fraction 500

What is the mole fraction of NHWhat is the mole fraction of NH33 in in

a solution prepared by dissolving a solution prepared by dissolving 15g of NH15g of NH33 in 250g of H in 250g of H22O? The O? The

density of the resulting solution is density of the resulting solution is 0.974 g/mL.0.974 g/mL.

0.05960.0596

Molarity 100Molarity 100

What is the molarity of a solution What is the molarity of a solution prepared by dissolving 5.5g of prepared by dissolving 5.5g of

HCl in 200g of CHCl in 200g of C22HH66O? (D = 0.79 O? (D = 0.79

g/mL)g/mL)

0.588M0.588M

Molarity 200Molarity 200

What is the molarity of sodium chloride What is the molarity of sodium chloride in a solution that is 13% by mass in a solution that is 13% by mass

NaCl? (D = 1.10 g/mL)NaCl? (D = 1.10 g/mL)

2.49M2.49M

Molarity 300Molarity 300

What is the molarity of ammonium What is the molarity of ammonium chloride in a aqueous solution chloride in a aqueous solution

that is 24.0% by mass ammonium that is 24.0% by mass ammonium chloride? (D = 1.0674 g/mol)chloride? (D = 1.0674 g/mol)

4.79M4.79M

Molarity 400Molarity 400What is the mass % of ammonium What is the mass % of ammonium

chloride in a 0.376M aqueous chloride in a 0.376M aqueous solution of ammonium chloride? solution of ammonium chloride?

(D = 1.0045 g/mL)(D = 1.0045 g/mL)

1.98%1.98%

Molarity 500Molarity 500

If you are asked to calculate the If you are asked to calculate the molarity of a 10% by mass molarity of a 10% by mass

aqueous solution of hydrochloric aqueous solution of hydrochloric acid, then what piece of additional acid, then what piece of additional

information do you need?information do you need?

Density of the solutionDensity of the solution

Colligative Properties 100Colligative Properties 100

Which of the following produces the Which of the following produces the greatest number of ions when one greatest number of ions when one

mole dissolves in water? NaCl, mole dissolves in water? NaCl, NHNH44NONO33, NH, NH44Cl, NaCl, Na22SOSO44, sucrose, sucrose

NaNa22SOSO44

Colligative Properties 200Colligative Properties 200

Which of the following liquids will have Which of the following liquids will have the lowest freezing point?the lowest freezing point?

Pure HPure H22O, 0.05M glucose, 0.03M CoIO, 0.05M glucose, 0.03M CoI22, ,

0.03M FeI0.03M FeI33, or 0.03M NaI , or 0.03M NaI

0.03M FeI0.03M FeI33

Colligative Properties 300Colligative Properties 300

Which of the following solutes will have Which of the following solutes will have the lowest vapor pressure in an the lowest vapor pressure in an

aqueous solution (assume all are aqueous solution (assume all are 0.1M)?0.1M)?

KClOKClO44, Ca(ClO, Ca(ClO44))2,2, Al(ClO Al(ClO44))33, sucrose, or , sucrose, or

NaClNaClAl(ClOAl(ClO44))33

Colligative Properties 400Colligative Properties 400

Which of the following aqueous Which of the following aqueous solutions will have the highest boiling solutions will have the highest boiling

point?point?

0.1M Na0.1M Na22SOSO44, 0.2M glucose, 0.25M , 0.2M glucose, 0.25M

sucrose, 0.1M NaCl, or 0.1M SrSOsucrose, 0.1M NaCl, or 0.1M SrSO44

0.1M Na0.1M Na22SOSO44

Colligative Properties 500Colligative Properties 500

Which of the following liquids will have Which of the following liquids will have the lowest freezing point?the lowest freezing point?

0.6M glucose, 0.6M sucrose, 0.24M 0.6M glucose, 0.6M sucrose, 0.24M FeIFeI33, or 0.5M KF, or 0.5M KF

0.5M KF0.5M KF

FP, BP, and VP 100FP, BP, and VP 100

The freezing point of CThe freezing point of C22HH55OH is -OH is -

114.6114.6ooC. The molal freezing point C. The molal freezing point depression constant for ethanol is depression constant for ethanol is 2.00 2.00 ooC/C/mm. What is the freezing . What is the freezing point of a solution prepared by point of a solution prepared by

dissolving 50g of Cdissolving 50g of C33HH88OO33 in 200g in 200g

of ethanol?of ethanol?-120-120ooCC

FP, BP, and VP 200FP, BP, and VP 200

Calculate the freezing point of a Calculate the freezing point of a solution containing 5g of KCl and solution containing 5g of KCl and 550g of water. The molal freezing 550g of water. The molal freezing point depression constant (kpoint depression constant (kff) for ) for

water is 1.86 water is 1.86 ooC/C/mm..

-0.459 -0.459 ooCC

FP, BP, and VP 300FP, BP, and VP 300

A man places 4.01kg of water in a A man places 4.01kg of water in a pan and brings it to a boil. Before pan and brings it to a boil. Before

adding pasta, he added 58g of salt adding pasta, he added 58g of salt to the water and again brings it to to the water and again brings it to a boil. What is the boiling point of a boil. What is the boiling point of the salty water if the kthe salty water if the kbb for H for H22O is O is

0.52 0.52 ooC/C/mm..100.26 100.26 ooCC

FP, BP, and VP 400FP, BP, and VP 400

A solution containing 10g of an A solution containing 10g of an unknown liquid and 90g of water unknown liquid and 90g of water has a freezing point of -3.33has a freezing point of -3.33ooC. C. Given kGiven kff = 1.86 = 1.86 ooC/C/mm for water, for water,

what is the molar mass of the what is the molar mass of the liquid.liquid.

62.11 g/mol62.11 g/mol

FP, BP, and VP 500FP, BP, and VP 500

The vapor pressure of pure water at The vapor pressure of pure water at 2525ooC is 23.8 torr. What is the vapor C is 23.8 torr. What is the vapor pressure (in torr) of water above a pressure (in torr) of water above a

solution prepared by dissolving solution prepared by dissolving 18g of glucose in 95g of water?18g of glucose in 95g of water?

23.32 torr23.32 torr

Surprise 100Surprise 100

What is the phrase used to know What is the phrase used to know whether or not a solvent will whether or not a solvent will

dissolve in a solute?dissolve in a solute?

Like dissolves like.Like dissolves like.

Surprise 200Surprise 200

What is a supersaturated solution What is a supersaturated solution and how is it formed?and how is it formed?

A supersaturated solutions has more A supersaturated solutions has more solute than possible at a given solute than possible at a given

temperature. It is formed by heating temperature. It is formed by heating a solution and dissolving more a solution and dissolving more

solute, then carefully cooling the solute, then carefully cooling the solution to avoid recrystallization.solution to avoid recrystallization.

Surprise 300Surprise 300

What is the effect with light that What is the effect with light that occurs with colloids?occurs with colloids?

Tyndall Tyndall EffectEffect

Surprise 400Surprise 400

What is the molality of a solution with What is the molality of a solution with a concentration of lead (II) nitrate a concentration of lead (II) nitrate

of 0.726M? (D = 1.202 g/mL)of 0.726M? (D = 1.202 g/mL)

0.754 0.754 mm Pb(NO Pb(NO33))33

Surprise 500Surprise 500

What is the osmotic pressure of a What is the osmotic pressure of a solution formed by dissolving solution formed by dissolving

25mg of aspirin (C25mg of aspirin (C99HH88OO44) in 0.25L ) in 0.25L

of water at 25of water at 25ooC?C?

0.014 atm0.014 atm