Question 1

The chemical formula for iodous acid is

Accepted Answer

A) H IO(aq). 
B) HIO2(aq). 
C) HIO3(aq). 
D) H I O4(aq). 
A) H IO(aq). 
B) HIO2(aq). 
C) HIO3(aq). 
D) H I O4(aq).

Question 2

What is the concentration of NO3- ions in a solution prepared by dissolving 15.0 g of Ba(NO3)2 in enough water to produce 300.mL of solution?

Accepted Answer

A) 0.057 M 
B) 0.191 M 
C) 0.573M 
D) 0.382 M 
A) 0.057 M 
B) 0.191 M 
C) 0.573M 
D) 0.382 M

Question 3

Which outcome corresponds to the mixing of sodium and sulfate ions shown in the following equation? 2 Na+(aq)+ SO42-(aq)→ ?

Accepted Answer

A) box (a) 
B) box (b) 
C) box (c) 
D) None of these 
A) box (a) 
B) box (b) 
C) box (c) 
D) None of these

Question 4

-The concentration of an aqueous solution of NaOCl can be determined by a redox titration with iodide ion in acidic solution: OCl- (aq)+ 2 I- (aq)+ 2 H⁺ (aq)→ Cl⁻ (aq)+ I2 (aq)+ H2O (l)
Assume that the black spheres in the buret represent I⁻ ions,the gray spheres in the flask represent OCl⁻ ions,the concentration of the I⁻ ions in the buret is 0.120 M,and the volumes in the buret and the flask are identical.What is the concentration of the NaOCl in the flask,and what fraction of the I⁻ solution in the buret must be added to the flask to react with all the OCl⁻ ions?

Accepted Answer

A) 0.0400 M NaOCl;1/3 of the I⁻ must be added. 
B) 0.0400 M NaOCl;2/3 of the I⁻ must be added. 
C) 0.0600 M NaOCl;1/3 of the I⁻ must be added. 
D) 0.0600 M NaOCl;2/3 of the I⁻ must be added. 
A) 0.0400 M NaOCl;1/3 of the I⁻ must be added. 
B) 0.0400 M NaOCl;2/3 of the I⁻ must be added. 
C) 0.0600 M NaOCl;1/3 of the I⁻ must be added. 
D) 0.0600 M NaOCl;2/3 of the I⁻ must be added.

Question 5

Which outcome corresponds to the combination of silver and carbonate ions shown in the following equation? Ag+(aq)+ CO32-(aq)→ ?

Accepted Answer

A) box (a) 
B) box (b) 
C) box (c) 
D) None of these 
A) box (a) 
B) box (b) 
C) box (c) 
D) None of these

Question 6

Which element will not react with liquid water or with aqueous H+ ions?

Accepted Answer

A) Hg 
B) Co 
C) Zn 
D) Li 
A) Hg 
B) Co 
C) Zn 
D) Li

Question 7

The reaction Na3PO4(aq)+ 3 AgNO3(aq)→ Ag3PO4(s)+ 3 NaNO3(aq)is best classified as a(n)

Accepted Answer

A) acid-base neutralization reaction. 
B) oxidation-reduction reaction. 
C) precipitation reaction. 
D) single replacement reaction. 
A) acid-base neutralization reaction. 
B) oxidation-reduction reaction. 
C) precipitation reaction. 
D) single replacement reaction.

Question 8

Disproportionation is a reaction in which a substance is both oxidized and reduced in the reaction.Which is a disproportionation reaction?

Accepted Answer

A) ClO3-(aq)+ 3 Cu(s)+ 6 H+(aq)→ Cl-(aq)+ 3 Cu2+(aq)+ 3 H2O(l) 
B) ClO-(aq)+ Pb(OH)4-(aq)→ Cl-(aq)+ PbO2(s)+ H2O(l)+ 2 OH-(aq) 
C) 6 Cl-(aq)+ Cr2O72-(aq)+ 14 H+(aq)→ 3 Cl2(g)+ 2 Cr3+(aq)+ 7 H2O(l) 
D) Cl2(g)+ 2 OH-(aq)→ Cl-(aq)+ ClO-(aq)+ H2O(l) 
A) ClO3-(aq)+ 3 Cu(s)+ 6 H+(aq)→ Cl-(aq)+ 3 Cu2+(aq)+ 3 H2O(l) 
B) ClO-(aq)+ Pb(OH)4-(aq)→ Cl-(aq)+ PbO2(s)+ H2O(l)+ 2 OH-(aq) 
C) 6 Cl-(aq)+ Cr2O72-(aq)+ 14 H+(aq)→ 3 Cl2(g)+ 2 Cr3+(aq)+ 7 H2O(l) 
D) Cl2(g)+ 2 OH-(aq)→ Cl-(aq)+ ClO-(aq)+ H2O(l)

Question 9

How many grams of CaCl2 are formed when 25.00 mL of 0.00237 M Ca(OH)2 reacts with excess Cl2 gas? 2 Ca(OH)2(aq)+ 2 Cl2(g)→ Ca(OCl)2(aq)+ CaCl2(s)+ 2 H2O(l)

Accepted Answer

A) 0.00329 g 
B) 0.00658 g 
C) 0.0132 g 
D) 0.0304 g 
A) 0.00329 g 
B) 0.00658 g 
C) 0.0132 g 
D) 0.0304 g

Question 10

The reaction Cu(s)+ 2 HCl(aq)→ CuCl2(aq)+ H2(g)is predicted not to occur because Cu is ________ than H+ in the activity series.

Accepted Answer

Question 11

Metals that do not react with hydrochloric acid to produce hydrogen gas are found ________ H2 in the activity series.

Accepted Answer

Question 12

A student dissolved 3.00 g of Co(NO3)2 in enough water to make 100.mL of stock solution.He took 4.00 mL of the stock solution and then diluted it with water to give 275.mL of a final solution.How many grams of NO3- ion are there in the final solution?

Accepted Answer

A) 0.0148 g 
B) 0.0296 g 
C) 0.0407 g 
D) 0.0813 g 
A) 0.0148 g 
B) 0.0296 g 
C) 0.0407 g 
D) 0.0813 g

Question 13

The reaction Ba(s)+ 2 AgNO3(aq)→ Ba(NO3)2(aq)+ 2 Ag(s)is best classified as a(n)

Accepted Answer

A) acid-base neutralization reaction. 
B) double replacement reaction. 
C) oxidation-reduction reaction. 
D) precipitation reaction. 
A) acid-base neutralization reaction. 
B) double replacement reaction. 
C) oxidation-reduction reaction. 
D) precipitation reaction.

Question 14

A student dissolved 3.00 g of Ca(NO3)2 in enough water to make 100.mL of stock solution.He took 4.00 mL of the solution then diluted it with water to give 275 mL of a final solution.How many grams of NO3- ion are there in the final solution?

Accepted Answer

A) 0.329 g 
B) 0.00073 g 
C) 0.0453 g 
D) 0.0906 g 
A) 0.329 g 
B) 0.00073 g 
C) 0.0453 g 
D) 0.0906 g

Question 15

What is the concentration of 200.mL of 0.500 M LiF?

Accepted Answer

A) 0.500 M 
B) 1.00 M 
C) 0.250 M 
D) 0.400 M 
A) 0.500 M 
B) 1.00 M 
C) 0.250 M 
D) 0.400 M

Question 16

Which species functions as the oxidizing agent in the following reduction-oxidation reaction? 5 Fe2+(aq)+ MnO4-(aq)+ 8 H+(aq)→ Mn2+(aq)+ 5 Fe3+(aq)+ 4 H2O(l)

Accepted Answer

A) Fe2+(aq) 
B) H+(aq) 
C) Mn2+(aq) 
D) MnO4-(aq) 
A) Fe2+(aq) 
B) H+(aq) 
C) Mn2+(aq) 
D) MnO4-(aq)

Question 17

When 50.0 mL of a 1.00M solution of Fe(NO3)3 are mixed with 50.0mL of a 1.00 M solution of NaOH,a precipitate forms.What ions remain after the reaction is complete? Fe(NO3)3(aq) + 3 NaOH(aq)→ Fe(OH)3(s)+ 3 NaNO3(aq)

Accepted Answer

A) Fe3+ and OH- 
B) Fe3+,Na+,and OH- 
C) Fe3+,OH-,Na+,and NO3- 
D) Na+ and NO3- 
A) Fe3+ and OH- 
B) Fe3+,Na+,and OH- 
C) Fe3+,OH-,Na+,and NO3- 
D) Na+ and NO3-

Question 18

Phthalic acid is a diprotic acid having the formula HO2CC6H4CO2H that can be converted to a salt by reaction with base.Which of the following is expected to be most soluble in water?

Accepted Answer

A) HO2CC6H4CO2H 
B) HO2CC6H4CO2Na 
C) HO2CC6H4CO2K 
D) NaO2CC6H4CO2Na 
A) HO2CC6H4CO2H 
B) HO2CC6H4CO2Na 
C) HO2CC6H4CO2K 
D) NaO2CC6H4CO2Na

Question 19

Identify the statement that is true about nonelectrolytes.

Accepted Answer

A) Nonelectrolytes dissolve in water to produce ions. 
B) Nonelectrolytes do not dissociate in water. 
C) Nonelectrolytes conduct electricity. 
D) Most nonelectrolytes are ionic compounds. 
A) Nonelectrolytes dissolve in water to produce ions. 
B) Nonelectrolytes do not dissociate in water. 
C) Nonelectrolytes conduct electricity. 
D) Most nonelectrolytes are ionic compounds.

Question 20

What reagent could not be used to separate Cl- from S2- when added to an aqueous solution containing both?

Accepted Answer

A) AgNO3(aq) 
B) Ca(NO3)2(aq) 
C) Cu(NO3)2(aq) 
D) Fe(NO3)3(aq) 
A) AgNO3(aq) 
B) Ca(NO3)2(aq) 
C) Cu(NO3)2(aq) 
D) Fe(NO3)3(aq)

Exam 4: Reactions in Aqueous Solutions

The chemical formula for iodous acid is

What is the concentration of NO3- ions in a solution prepared by dissolving 15.0 g of Ba(NO3)2 in enough water to produce 300.mL of solution?

Which outcome corresponds to the mixing of sodium and sulfate ions shown in the following equation? 2 Na+(aq)+ SO42-(aq)→ ?

Which outcome corresponds to the combination of silver and carbonate ions shown in the following equation? Ag+(aq)+ CO32-(aq)→ ?

Which element will not react with liquid water or with aqueous H+ ions?

The reaction Na3PO4(aq)+ 3 AgNO3(aq)→ Ag3PO4(s)+ 3 NaNO3(aq)is best classified as a(n)

Disproportionation is a reaction in which a substance is both oxidized and reduced in the reaction.Which is a disproportionation reaction?

How many grams of CaCl2 are formed when 25.00 mL of 0.00237 M Ca(OH)2 reacts with excess Cl2 gas? 2 Ca(OH)2(aq)+ 2 Cl2(g)→ Ca(OCl)2(aq)+ CaCl2(s)+ 2 H2O(l)

The reaction Cu(s)+ 2 HCl(aq)→ CuCl2(aq)+ H2(g)is predicted not to occur because Cu is ________ than H+ in the activity series.

Metals that do not react with hydrochloric acid to produce hydrogen gas are found ________ H2 in the activity series.

A student dissolved 3.00 g of Co(NO3)2 in enough water to make 100.mL of stock solution.He took 4.00 mL of the stock solution and then diluted it with water to give 275.mL of a final solution.How many grams of NO3- ion are there in the final solution?

The reaction Ba(s)+ 2 AgNO3(aq)→ Ba(NO3)2(aq)+ 2 Ag(s)is best classified as a(n)

A student dissolved 3.00 g of Ca(NO3)2 in enough water to make 100.mL of stock solution.He took 4.00 mL of the solution then diluted it with water to give 275 mL of a final solution.How many grams of NO3- ion are there in the final solution?

What is the concentration of 200.mL of 0.500 M LiF?

Which species functions as the oxidizing agent in the following reduction-oxidation reaction? 5 Fe2+(aq)+ MnO4-(aq)+ 8 H+(aq)→ Mn2+(aq)+ 5 Fe3+(aq)+ 4 H2O(l)

When 50.0 mL of a 1.00M solution of Fe(NO3)3 are mixed with 50.0mL of a 1.00 M solution of NaOH,a precipitate forms.What ions remain after the reaction is complete? Fe(NO3)3(aq) + 3 NaOH(aq)→ Fe(OH)3(s)+ 3 NaNO3(aq)

Phthalic acid is a diprotic acid having the formula HO2CC6H4CO2H that can be converted to a salt by reaction with base.Which of the following is expected to be most soluble in water?

Identify the statement that is true about nonelectrolytes.

What reagent could not be used to separate Cl- from S2- when added to an aqueous solution containing both?

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What is the concentration of NO₃^- ions in a solution prepared by dissolving 15.0 g of Ba(NO₃)₂ in enough water to produce 300.mL of solution?

Which outcome corresponds to the mixing of sodium and sulfate ions shown in the following equation? 2 Na⁺(aq)+ SO₄^2-(aq)→ ?

Which outcome corresponds to the combination of silver and carbonate ions shown in the following equation? Ag⁺(aq)+ CO₃^2-(aq)→ ?

Which element will not react with liquid water or with aqueous H⁺ ions?

The reaction Na₃PO₄(aq)+ 3 AgNO₃(aq)→ Ag₃PO₄(s)+ 3 NaNO₃(aq)is best classified as a(n)

How many grams of CaCl₂ are formed when 25.00 mL of 0.00237 M Ca(OH)₂ reacts with excess Cl₂ gas? 2 Ca(OH)₂(aq)+ 2 Cl₂(g)→ Ca(OCl)₂(aq)+ CaCl₂(s)+ 2 H₂O(l)

The reaction Cu(s)+ 2 HCl(aq)→ CuCl₂(aq)+ H₂(g)is predicted not to occur because Cu is ________ than H⁺ in the activity series.

Metals that do not react with hydrochloric acid to produce hydrogen gas are found ________ H₂ in the activity series.

A student dissolved 3.00 g of Co(NO₃)₂ in enough water to make 100.mL of stock solution.He took 4.00 mL of the stock solution and then diluted it with water to give 275.mL of a final solution.How many grams of NO₃^- ion are there in the final solution?

The reaction Ba(s)+ 2 AgNO₃(aq)→ Ba(NO₃)₂(aq)+ 2 Ag(s)is best classified as a(n)

A student dissolved 3.00 g of Ca(NO₃)₂ in enough water to make 100.mL of stock solution.He took 4.00 mL of the solution then diluted it with water to give 275 mL of a final solution.How many grams of NO₃^- ion are there in the final solution?

Which species functions as the oxidizing agent in the following reduction-oxidation reaction? 5 Fe²⁺(aq)+ MnO₄^-(aq)+ 8 H⁺(aq)→ Mn²⁺(aq)+ 5 Fe³⁺(aq)+ 4 H₂O(l)

When 50.0 mL of a 1.00M solution of Fe(NO₃)₃ are mixed with 50.0mL of a 1.00 M solution of NaOH,a precipitate forms.What ions remain after the reaction is complete? Fe(NO₃)₃(aq)+ 3 NaOH(aq)→ Fe(OH)₃(s)+ 3 NaNO₃(aq)

Phthalic acid is a diprotic acid having the formula HO₂CC₆H₄CO₂H that can be converted to a salt by reaction with base.Which of the following is expected to be most soluble in water?

What reagent could not be used to separate Cl^- from S^2- when added to an aqueous solution containing both?