Question 1

Based on the solubility rules,which of these processes will occur when solutions of ZnSO4(aq) and MgCl2(aq) are mixed?

Accepted Answer

A)  ZnCl2 will precipitate; Mg2+ and SO42- are spectator ions.
B)  ZnSO4 will precipitate; Mg2+ and Cl- are spectator ions.
C)  MgSO4 will precipitate; Zn2+ and Cl- are spectator ions.
D)  MgCl2 will precipitate; Zn2+ and SO42- are spectator ions.
E)  No precipitate will form.F) A) and E)
G) A) and D)

Question 2

A standard solution of 0.243 M NaOH was used to determine the concentration of a hydrochloric acid solution.If 46.33 mL of NaOH is needed to neutralize 10.00 mL of the acid,what is the molar concentration of the acid in the original solution?

Accepted Answer

A)  0.243 M
B)  0.200 M
C)  1.13 M
D)  0.563 M
E)  0.0313 MF) All of the above
G) A) and E)

Question 3

Which of the following equations is not a redox reaction?

Accepted Answer

A)  2H2(g) + O2(g) → 2H2O(l) 
B)  Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g) 
C)  H2O(l) + NH3(g) → NH4 +(aq) + OH-(aq) 
D)  6FeSO4(aq) + K2Cr2O7(aq) + 7H2SO4(aq) → Cr2(SO4) 3(aq) + 3Fe2(SO4) 3(aq) + K2SO4(aq) + 7H2O(l) 
E)  Cl2(g) + 2KBr(aq) → Br2(l) + 2KCl(aq) F) A) and B)
G) B) and C)

Question 4

Which salt is formed in the neutralization reaction of hydrochloric acid with calcium hydroxide?

Accepted Answer

A)  CaO
B)  CaCl
C)  CaH2
D)  CaCl2
E)  NaClF) A) and C)
G) B) and E)

Question 5

The oxidation number for oxygen in O2 is zero.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is insoluble in water?

Accepted Answer

A)  Li2CO3
B)  NaOH
C)  PbCl2
D)  Ba(OH) 2
E)  (NH4) 2SF) D) and E)
G) None of the above

Question 7

What volume of a 0.452 M NaOH solution is needed to neutralize 85.0 mL of a 0.176 M solution of H2SO4?

Accepted Answer

A)  218.3 mL
B)  66.2 mL
C)  38.4 mL
D)  436.6 mL
E)  33.1 mLF) A) and B)
G) A) and C)

Question 8

Which one of the following substances is the strongest electrolyte?

Accepted Answer

A)  CO
B)  CH3Cl
C)  CH4
D)  C2H5OH
E)  HClF) B) and D)
G) A) and E)

Question 9

OH‾ is called the ____________________ ___________________.

Accepted Answer

The answer of OH‾ is called the ____________________ ___________________....

Question 10

Identify NaOH as an electrolyte or nonelectrolyte.

Accepted Answer

The answer of Identify NaOH as an electrolyte or nonelectrolyte....

Question 11

What is the pH of a 0.056 M HNO3 solution?

Accepted Answer

A)  0.056
B)  1.25
C)  12.75
D)  2.88
E)  11.11F) A) and E)
G) D) and E)

Question 12

A(n)_______________________ reaction is a reaction between an acid and a base which produces water and a salt consisting of cations from the base and anions from the acid.

Accepted Answer

The answer of A(n)_______________________ reaction is a reaction between an...

Question 13

If aqueous solutions of Mg(C2H3O2) 2 and LiOH are mixed,which insoluble precipitate is formed?

Accepted Answer

A)  LiC2H3O2
B)  Li(C2H3O2) 2
C)  MgOH
D)  Mg(OH) 2
E)  CH3OHF) A) and E)
G) All of the above

Question 14

A 350-mL sample of 0.276 M HNO3 is partially neutralized by 125 mL of 0.120 M Ca(OH) 2.Find the concentration of nitric acid in the resulting solution.

Accepted Answer

A)  0.0429 M
B)  0.140 M
C)  0.172 M
D)  0.203 M
E)  0.773 MF) A) and C)
G) A) and B)

Question 15

Which equation describes a redox reaction?

Accepted Answer

A)  2Al(s) + 3H2SO4(aq) → Al2(SO4) 3(aq) + 3H2(g) 
B)  2KBr(aq) + Pb(NO3) 2(aq) → 2KNO3(aq) + PbBr2(s) 
C)  CaBr2(aq) + H2SO4(aq) → CaSO4(s) + 2HBr(g) 
D)  H+(aq) + OH-(aq) → H2O(l) 
E)  CO32-(aq) + HSO4-(aq) → HCO3-(aq) + SO42-(aq) F) A) and E)
G) A) and D)

Question 16

Hydration is the process in which organic solvent molecules surround a solute particle.

Accepted Answer

A) True 
 B)False

Question 17

Write a short definition for a Brønsted base.

Accepted Answer

A Brønsted...

Question 18

The oxidation number for a pure element is always zero.

Accepted Answer

A) True 
 B)False

Question 19

A(n)___________ ____________ is the name given for the substance that causes another substance to

Accepted Answer

undergo ox...

Question 20

Vinegar is a solution of acetic acid,HC2H3O2 ,dissolved in water.A 5.54-g sample of vinegar was Vneutralized by 30.10 mL of 0.100 M NaOH.What is the percent by weight of acetic acid in the vinegar?

Accepted Answer

A)  0.0543%
B)  1.08%
C)  3.26%
D)  5.43%
E)  9.23%F) B) and C)
G) C) and D)

Exam 4: Reactions in Aqueous Solutions

Which salt is formed in the neutralization reaction of hydrochloric acid with calcium hydroxide?

Correct AnswerverifiedShow Answer

Hydration is the process in which organic solvent molecules surround a solute particle.

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Which of the following equations is not a redox reaction?

Correct AnswerverifiedShow Answer

Which equation describes a redox reaction?

Correct AnswerverifiedShow Answer

What is the pH of a 0.056 M HNO3 solution?

Correct AnswerverifiedShow Answer

Which of the following is insoluble in water?

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The oxidation number for a pure element is always zero.

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The oxidation number for oxygen in O2 is zero.

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Identify NaOH as an electrolyte or nonelectrolyte.

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A(n)___________ ____________ is the name given for the substance that causes another substance to

Correct Answerverifiedundergo ox...View AnswerShow Answer

Which one of the following substances is the strongest electrolyte?

Correct AnswerverifiedShow Answer

OH‾ is called the ____________________ ___________________.

Correct AnswerverifiedShow Answer

Based on the solubility rules,which of these processes will occur when solutions of ZnSO4(aq) and MgCl2(aq) are mixed?

Correct AnswerverifiedShow Answer

Vinegar is a solution of acetic acid,HC2H3O2 ,dissolved in water.A 5.54-g sample of vinegar was Vneutralized by 30.10 mL of 0.100 M NaOH.What is the percent by weight of acetic acid in the vinegar?

Correct AnswerverifiedShow Answer

A(n)_______________________ reaction is a reaction between an acid and a base which produces water and a salt consisting of cations from the base and anions from the acid.

Correct AnswerverifiedShow Answer

A standard solution of 0.243 M NaOH was used to determine the concentration of a hydrochloric acid solution.If 46.33 mL of NaOH is needed to neutralize 10.00 mL of the acid,what is the molar concentration of the acid in the original solution?

Correct AnswerverifiedShow Answer

Write a short definition for a Brønsted base.

Correct AnswerverifiedA Brønsted...View AnswerShow Answer

If aqueous solutions of Mg(C2H3O2) 2 and LiOH are mixed,which insoluble precipitate is formed?

Correct AnswerverifiedShow Answer

What volume of a 0.452 M NaOH solution is needed to neutralize 85.0 mL of a 0.176 M solution of H2SO4?

Correct AnswerverifiedShow Answer

A 350-mL sample of 0.276 M HNO3 is partially neutralized by 125 mL of 0.120 M Ca(OH) 2.Find the concentration of nitric acid in the resulting solution.

Correct AnswerverifiedShow Answer

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What is the pH of a 0.056 M HNO₃ solution?

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The oxidation number for oxygen in O₂ is zero.

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A(n)_ __ is the name given for the substance that causes another substance to

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undergo ox...
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OH‾ is called the __ _.

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Based on the solubility rules,which of these processes will occur when solutions of ZnSO₄(aq) and MgCl₂(aq) are mixed?

Correct Answer
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Vinegar is a solution of acetic acid,HC₂H₃O₂ ,dissolved in water.A 5.54-g sample of vinegar was Vneutralized by 30.10 mL of 0.100 M NaOH.What is the percent by weight of acetic acid in the vinegar?

Correct Answer
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A Brønsted...
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If aqueous solutions of Mg(C₂H₃O₂) ₂ and LiOH are mixed,which insoluble precipitate is formed?

Correct Answer
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What volume of a 0.452 M NaOH solution is needed to neutralize 85.0 mL of a 0.176 M solution of H₂SO₄?

Correct Answer
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A 350-mL sample of 0.276 M HNO₃ is partially neutralized by 125 mL of 0.120 M Ca(OH) ₂.Find the concentration of nitric acid in the resulting solution.

Correct Answer
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