Chemical Engineering Chapter 5 Which metal atom below cannot form a cation of

33) What is the name of the compound made from lithium and oxygen?

A) lithium dioxide

B) lithium(I) oxide

C) oxygen lithide

D) lithium oxide

E) none of the above

34) Which metal atom below cannot form a cation of several different charges?

A) Cr

B) Mn

C) Fe

D) Ba

E) none of the above

35) What is the name of CoS?

A) cobalt(II) sulfide

B) cobalt sulfide

C) cobalt monosulfide

D) cobaltous sulfur

E) none of the above

36) What is the name of Ca(NO3)2?

A) calcium dinitrite

B) calcium nitrate

C) calcium nitride

D) calcium nitrite

E) none of the above

37) Which formula shown is incorrect for the name given?

A) magnesium nitrite: Mg(NO2)3

B) calcium carbonate: CaCO3

C) aluminum sulfate: Al2(SO4)3

D) sodium hydrogen carbonate: NaHCO3

E) potassium hydroxide: KOH

38) Which formula shown is incorrect for the name given?

A) strontium carbonate: SrCO3

B) ammonium cyanide: NH4CN

C) potassium acetate: KC2H3O2

D) calcium nitrate: Ca(NO3)2

E) lithium sulfate: LiSO4

39) What is the name of the compound whose formula is Na2O?

A) sodium monoxide

B) disodium oxide

C) disodium monoxide

D) sodium oxide

E) none of the above

40) What is the formula for the acetate polyatomic ion?

A) C3H2O3–

B) C2H3O22-

C) C2H3O2–

D) C2H3O–

E) none of the above

41) What is the correct formula for potassium dichromate?

A) K(CrO4)2

B) KCr2O7

C) K2CrO4

D) K2Cr2O7

E) none of the above

42) What is the correct formula for ammonium hydrogen sulfate?

A) NH4HSO4

B) (NH4)2HSO4

C) (NH4)2SO4

D) Am2HSO4

E) none of the above

43) The formula for potassium chlorate is KClO3. The formula for magnesium chloride is

MgCl2. What is the formula for magnesium chlorate?

A) MgClO3

B) Mg2ClO3

C) Mg(ClO3)2

D) Mg2(ClO3)3

E) none of the above

44) The charge of a vanadium ion in the compound V2O5 is:

A) 5+

B) 2+

C) 10+

D) 10-

E) none of the above

45) What is the correct formula for the hypochlorite polyatomic ion?

A) ClO–

B) ClO2–

C) ClO3–

D) ClO4–

E) none of the above

46) What is the correct name for the BrO4 1- ion?

A) hypobromite

B) perbromate

C) bromite

D) bromate

E) none of the above

47) Choose the pair of names and formulas that do NOT match.

A) copper(I) nitrate: CuNO3

B) copper(II) nitride: Cu3N2

C) copper(II) nitrate: Cu(NO3)2

D) copper(II) nitrite: Cu(NO2)2

E) all of these are correct

48) The name trisodium phosphate is incorrect for the compound Na3PO4 because:

A) this compound should be called trisodium monophosphate.

B) the sodium has a negative 3 charge.

C) you cannot use a prefix for the first element in a molecular compound.

D) you cannot use a prefix for the first element of an ionic compound.

E) none of the above

49) What is the name of the molecular compound SF5?

A) sulfur hexafluoride

B) sulfur heptafluoride

C) monosulfur tetrafluoride

D) sulfur pentafluoride

E) none of the above

50) What is the name of the molecular compound SO3?

A) sulfur oxide

B) sulfur(IV) oxide

C) sulfur trioxide

D) sulfur tetraoxide

E) none of the above

51) What is correct name of the compound whose formula is N2O4?

A) nitrogen dioxide

B) nitrogen tetroxide

C) dinitrogen oxide

D) dinitrogen tetroxide

E) none of the above

52) What is correct name of the compound whose formula is BF3?

A) boron trifluoride

B) boron fluoride

C) monoboron trifluorine

D) boron(III) fluoride

E) none of the above

53) What would the formula of diiodine pentasulfide be?

A) I5S2

B) I2S5

C) I4S9

D) I2S7

E) none of the above

54) What is the correct formula for the molecular compound heptaphosphorus octafluoride?

A) P5F8

B) P 7F6

C) P6F7

D) P7F8

E) none of the above

55) What is the proper name for HBr (aq)?

A) hydrobromous acid

B) hydrousbromic acid

C) hydrobromic acid

D) bromous acid

E) none of the above

56) What is the name of HI (aq)?

A) hydroiodous acid

B) hydroiodic acid

C) iodic acid

D) iodous acid

E) none of the above

57) What is the name of HIO3?

A) iodic acid

B) hydroioidic acid

C) hydroiodous acid

D) iodous acid

E) none of the above

58) What is the name of HNO2?

A) nitric acid

B) nitrous acid

C) hydronitrous acid

D) hydronitric acid

E) none of the above

59) A certain oxyacid is derived from the oxyanion SO32-. The formula for the oxyacid is:

A) H2SO4.

B) HSO3.

C) H2SO3.

D) H3SO3.

E) none of the above

60) What is the formula mass of sulfurous acid?

A) 82.08 amu

B) 98.08 amu

C) 83.09 amu

D) 66.08 amu

E) none of the above

61) What is the formula mass for potassium nitrate?

A) 92.99 amu

B) 117.11 amu

C) 85.11 amu

D) 101.10 amu

E) none of the above

62) What is the formula mass for diboron tetrachloride?

A) 127.98 amu

B) 198.89 amu

C) 234.34 amu

D) 163.43 amu

E) none of the above

63) What is the formula mass of copper(II) fluoride?

A) 101.55

B) 146.10

C) 90.00

D) 165.10

E) none of the above

64) Which of the following has the largest formula mass?

A) CO2

B) SO2

C) NO2

D) SiO2

E) H2O

65) Which of the following compounds have the smallest formula mass?

A) CO2

B) SO2

C) NO2

D) SiO2

E) H2O

66) A compound has a formula mass of 61.98 amu and is comprised of atoms of sodium and

oxygen in a definite ratio. The name of the compound described here is:

A) sodium monoxide.

B) disodium oxide.

C) sodium oxide.

D) sodium dioxide.

E) none of the above

Algorithmic Questions

1) What is the mass ratio of Na to S in sodium sulfide?

A) 7.17

B) 55.06

C) 0.717

D) 1.43

E) none of the above

2) If the mass ratio of K to F in a compound is 2.06:1, how many grams of F are needed to react

with of K?

A) 0.877

B) 1.12

C) 0.112

D) 8.77

E) none of the above

3) Suppose that in an ionic compound, “M” represents a metal that could form more than one

type of ion. In the formula MP , the charge of the M ion would be:

A) +1

B) -1

C) +2

D) -3

E) +3

4) Suppose that in an ionic compound, “M” represents a metal that could form more than one

type of ion. In the formula MF2 , the charge of the M ion would be:

A) +2

B) -1

C) +4

D) -2

E) +1

5) How many C atoms are in ammonium acetate?

A) 5

B) 2

C) 1

D) 3

E) none of the above

6) How many O atoms are present in sodium chlorite?

A) 2

B) 6

C) 4

D) 1

E) none of the above

7) What is the formula mass of magnesium nitride?

A) 38.32

B) 90.65

C) 100.95

D) 116.33

E) none of the above

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8) Oxyacids contains at least one H+ and an oxyanion. The ” nitrous ” oxyacid contains the

oxyanion ________.

A) nitrite

B) nitrate

C) nitride

D) nitric

E) none of the above