r-.

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Which of the following is ±Qf a strong acid in aqueous solution?

ID:B

2. A particular sheet of paper measures 4.0 x 10.5 inches. What is the surface area of one side of thepaper in cm2? (2.54 cm = 1 in exactly)A) 1.1xl02cm2

8) 4.2x|01cm2C) 6.5cm2

D) 2.7x|02cm2

E) 1.7x|01cm2

3. A 5.95-g sarnple of AgN03 is reacted with Bac12 according to the equation

2AgNo3(czg) + Bac12(czg) i 2Agc1(f) + Baoro3)2(clg)

to give 4.12 g of Agcl. What is the percent yield of Agc|?A) 69.2%8) 54.7%C) 100%D) 41.0%E) 82.1%

4. In the reaction of acetic acid with aqueous sodium hydroxide, what is the spectator ion?A) OH-(czq)8) There is no spectator ion.C) C2H302-(Czq)

D) Na+(¢g)E) H+(c'g)

5. How many valence electrons are present in the Lewis formula for the hypochlorite ion, CIO -?

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+

-, ' c9

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ID:8

6. The density of a particular solid is 7.90 g/cm3 at 25°C. What is its density in kilograms per cubicrfu` meter (kg/m3 )?

A) 7.90x|ol8) 7.90x|o7C) 7.90x|o-2D) 7.90x|ol0E) 7.90x|o3

7. 2KHC03(s') + K2C03(a) + C02(g) + H20(J)

How many moles of potassium carbonate will be produced if 355 g of potassium hydrogencarbonate are heated?A) 1.77mol8) 178molC) 13.3molD) 2.57molE) 3.55mol

8. What is the net ionic equation for the acid-base reaction that occurs when acetic acid and sodiumhydroxide solutions are mixed?A) HC2H302(czg) + OH-(Crg) i C2H302-(czg) + H2008) H+(czg) + OH-(cJg) i H200C) H30+(og) + OH-(czg) i 2H200D) C2H302-(czg) + H+(czg) + Na+(og) + OH-(czg) i Na+(czg) + C2H302-(czg) + H20(DE) HC2H302(clg) + NaoH-(czg) i Nac2H302-(czg) + H20(J)

9. Which of the following atoms is the most electronegative?

FX1411Spgl7 -0110 ID:8

10. The mass spectrum of an element with two naturally occurring isotopes is shown below. What isthe best estimate of the element's atomic mass?

9 10 11 12 13 14 15

Atomic Mass

1 0 amu1 1 amu10.8 amu10.2 amu10.5 amu

Analysis of a compound showed that it contained 14.4 % hydrogen atoms and 85.6 % carbonatoms by mass. What is its empirical formula?A) CH38)CHC) CH2D) C2H5

E) C2H3

12. Which of the following chemical reactions is an oxidation-reduction reaction?A) Mg(s) + C02(g) i Mgo(s) + CO(g)8) H2S04(czg) + Ba(OH)2(cJg) i Bas04(J) + 2H20(DC) Pbov03)2(czg) + 2Hcl(cJg) i pbc12(s) + 2HN03(czg)D) C02(C}9) + H200 i H2C03(Czg)E) NH3(g) + Hcl® + NH4Cl(s')

3

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13. Which of the following Lewis formulas is incorrect?

A) .il:t'l:

8) .H-ri.

c) H.ri.H

H

D)HH: a : H

H

E) H:a:

H

14. How many moles of pentane, C5Hi2, are contained in a 35-g sample?A) 0.49mol8) 0.83molC) 0.58molD) 3.5molE) 4.4mol

15. What is the ground-state electron configuration of phosphorus (P)?A) INe]3s23p3

8) [Ne]3s33p2

c) [Ar]3p5

D) [Ne]3p5

E) [Ar]3s23p3

16. Which of the following orbital diagrams violates the Pauli exclusion principle?

1s2s

A)®®8)®®c)®®D)®®E)®©

2p

0®®CjGC]®®©®®®OGO

4

ID:8

FX1411Spgl7 -0110

17. In phosgene, COC12, the electron groups are located about the central carbon atom in aarrangement.

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er-,` `.

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+..

ID:8

A) square planar8) trigonal bipyramidalC) pyramidalD) trigonal planarE) tetrahedral

18. The nucleus of a ]96Pt nuclide containsA) 196 protons, 78 neutrons, and 196 electrons.8) 196 protons and 118 electrons.C) 78 protons and 118 neutrons.D) 196 neutrons and 274 electrons.E) 78 protons and 196 neutrons.

19. Which of the following gases will have the slowest rate of effusion at constant temperature?

20. The complete combustion of butane, C4Hio, yields carbon dioxide and water:

_C4H[o + _02 i _C02 + _H20The smallest whole-number coefficient of oxygen in the balanced equation is

Whatistheground-stateelectronconfigurationoftheMg2+ion?

1s22s22p6

1s22s22p3

1s22s22pl

|s22s22p63s2

|s22s22p63s23p2

FX1411Spgl7 -0110

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( ae€S `\l!

G` g -,/`;

-2:...^\

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ID:8

22. What is the ground-state electron configuration of Fe3+?

A) [Ar]3d6

8) [Ar]3d5

C) [Ar]3d34s2

D) [Ar]3d64s2

E) [Ar]3d44s]

23. Which of the following ground-state electron configurations corresponds to an atom having thelargest ionization energy?A) [Ar]3dl04s24p38) INe]3s23p3C) gNe]3s23p2D) [Kr]4dl05s25p3E) [Xe]4fl45dl06s26p3

The molecular geometry of the CH3+ ion is best described asA) trigonal planar.8) pyramidal.C) linear.D) bent.E) tetrahedral.

25. How many moles of gas are in a gas sample occupying 0.870 L at 167 mmHg and 30°C?A) 0.00768mol8) 0.000631 molC) 59.OmolD) 130molE) 5.84mol

26. According to the following thermochemical equation, if 680.7 g ofN02 is produced, how muchheat is released at constant pressure?

2NO(g) + 02(g) + 2N02G); AZ7° = -114.4 kJ

A) 1.693xl03kT

8) 8.463xl02kTC) 114.4kJD) 7.732kJ

E) 7.787xl04kT

6

FX1411Spgl7 -0110

27. The density of ethane, C2H6 (30.1 g/mol), at 25°C and 1.17 atm pressure isA) 0.695 g/L.8) 1.44g/L.c) 0.i4igfr.D) 1.34gEL.

E) 17.2g/L.

28. Calculate the lattice energy for LiF(s) given the following:

sublimation energy for Li(a)Df7/forF(g)first ionization energy of Li(g)electron affinity of F(g)enthalpy of formation of LiF(s)

+ 166 kJ/mol+77 kJ/mol

+520. kJ/mol-328 kJ/moli; 17 kJ/mol

1052 kJ/mol285 kJ/mol-650. kJ/mol800. kJ/molnone of these

How many 100-mg aspirin tablets can be made from 10.0 kg of aspirin?

10,0001,000,000100010,000,000

30. What is the percent by mass hydrogen in (NH4)2S04?

31. How manyjoules are there in 5.11 kcal? (1 calorie = 4.184 J)

A) 1.22x|o3]

8) 2.14x|04TC) 21.4JD) 1.22J

E) 2.14xl0-2T

7

ID:8

FX1411Spgl7 -0110

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32. Which of the following represents a pair of isotopes?

Atomic Number Mass Number

ID:8

33. A sample of methane, CH4, occupies a volume of 316.0 mL at 25°C and exerts a pressure of975.0 mmHg. If the volume of the gas is allowed to expand to 630.0 mL at 298 K, what will be thepressure of the gas?A) 314.OmmHga) 489.OmmHgC) 1940mmHgD) 0.01657mmHgE) 5830mmHg

`_jg±i 34. The Lewis formula forphosphine, PH3, has-i.i-

A) four lone pairs.8) four bonding pairs.C) two bonding pairs and two lone pairs.D) three bonding pairs and one lone pair.E) one bonding pair and three lone pairs.

35. Which #e/ z.o#z.c eg"ofz.o73 best represents the reaction that occurs when an aqueous solution ofbarium chloride is mixed with an aqueous solution of lithium sulfate?A) 2H+(clg) + 2Cl-(crg) i 2Hcl(g)8) Ba2+(c}g) + S042-(c}g) i Bas04(s)C) Ba2+(czg) + 2Cl-(czg) + 2Li+(czg) + S042-(czg) i Bas04(s) + 2Licl(czg)D) Bac12(czg) + Li2S04(czg)+ Bas04(s)+ 2Licl(cJg)E) No net reaction occurs.

8

FX1411Spgl7 -0110

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36. Use the bond energies provided to complete the following statement.

when all of the bonds in acetic acid (CH3COOH) are broken.

Bond Bond Energy (kJ/mol)C-H 413C-0 3580-H 463C-0 745C-C 348C-C 614

3153 kJ/mol of energy is consumed3153 kJ/mol of energy is released2805 kJ/mol of energy is released2805 kJ/mol of energy is consumed2766 kJ/mol of energy is consumed

What is Afro for the following reaction?

2C2H2(g) + 502(g) + 4C02(g) + 2H20(D

S ub stanc e ALZ7°/ (kJ/mo I )

C2H2(g) +226.7C02(g)H20(D

-393.5-285.8

ID:8

A) +1692.2kJ8) 452.6kJC) -1692.2kJD) +2599.OkJE) -2599.OkJ

38. Ammonia, NH3, and oxygen can be reacted together in the presence of a catalyst to form onlynitrogen monoxide and water. The number of moles of oxygen consumed for every 7.00 moles ofNO produced isA) 8.758) 35.0C) 17.5

D) 4.38E) 26.3

9

FX1411Spgl7 -0110

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ID:8

39. Sulfuric acid reacts with aqueous sodium hydroxide to produce aqueous sodium sulfate and liquidwater. Which is the correct balanced chemical equation for this reaction description?A) H2S04(c!g) + 2NaoH(czg) i Na2S(czg) + 2H200 + 202(g)8) H2S(cJg) + 2NaoH(og) + Na2S(czg) + 2H20(DC) H2S04(cJg) + NaoH(og) + Nas04(c}g) + H20(g)D) H2S04(cJg) + 2NaoH(cJg) i Na2S04(czg) + 2H200E) H2S04(c}g) + OvaoH)2(cJg) i Na2S04(og) + 2H200

40. What is the molecular geometry of the bromate ion, Br03-?A) square planara) trigonal planarC) square pyramidalD) tetrahedralE) trigonal pyramidal

41. How many liters are in 14.7 fluid ounces of a soft drink? (1 fl oz = 28.35 mL)

A) 5.19xl04L

8) 5.19x|02L

C) 4.17xl05L

D) 4.17xl02LE) 0.417L

42. A gas occupies a volume of 2.75 L at 350 mmHg and 200°C. Which mathematical expressiongives the correct volume at 650 mmHg and 300°C?

A) 2.75Lx

a) 2.75Lx

C) 2.75Lx

D) 2.75Lx

E) 2.75Lx

650nrfug 473KX

350 nmiHg -- 573 K

650IrmHg 573KX

350 nmHg -- 473 K350ImHg 573K

X650ImHg 473K350ImHg 3oo°C

X650nmHg-20o°C350rmmHg 473K

X650ImHg' 573K

boiling point of chlorine is 172 K. This temperature corresponds to-82OC.

101OC.

172OC.-172OC.

-101OC.

10

FX1411Spgl7 -0110

44. A 1.00-L sample of a gas at STP has a mass of 1.43 g. The molar mass of the gas isA) 157g/mol.8) 22.4g/mol.C) 6.38 g/mol.D) 67.2g/mol.E) 32.Og/mol.

ID:8

A sample of an oxide of antimony (Sb) contained 59.5 g of antimony combined with 19.5 g ofoxygen. What is the simplest formula for the oxide?A) Sb2058) Sb203C) Sb03

D) SboE) Sb20

46. The change in energy for which of the following processes corresponds to the first ionizationenergy of strontium?A) Sr®+Sr+®+e-8) Sr®isr2+(g)+2e-C) Sr(a)+Sr+a+e-D) Sr(s)+e-i sr-(S)E) Sr(S)i sr+(s)+e-

|| 47. What is the change in enthalpy at 25°C and 1 atm for the production of3.00 mol sno(s)?

':11(i,,,`,Of;!z;)

Sn(s) + Sn02(s) + 2Sno(s); Aff = 16.2 kJ

A) -16.2kJa) 5.40kJC) 24.3kJD) 16.2kJE) -24.3kJ

48. Calculate the number of moles of bromine present in 21.0 mL of Br2(D, whose density is3 . 12 g/mL.A) 0.820mol8) 0.131molC) 0.410molD) 2.44molE) 0.263mol

11

FX1411Spgl7 -0110 ID:8

49. The following equation represents the partial combustion of methane, CH4.

2CH4(g) + 302(g) + 2CO(g) + 4H20(g)

At constant temperature and pressure, what is the maximum volume of carbon monoxide that can

be obtained from 5.09 x 102 L of methane and 2.54 x 102 L of oxygen?

A) 5.09xl02L

8) 1.02xl03L

C) 7.63xl02L

D) 1.78xl03L

E) 1.70x|02L

50. When 20.0 g C2H6 and 60.0 g 02 react to form C02 and H20, how many grams of water areformed?A) 14.588) 58.0gC) 18.0gD) 20.08E) none of these

12