Question 1

A solution is prepared by adding 0.10 mol of iron(III)  nitrate, Fe(NO3) 3, to 1.00 L of water. Which statement about the solution is correct?

Accepted Answer

A)   The solution is basic.
B)   The solution is neutral.
C)   The solution is acidic.
D)   The value of Ka for the species in solution must be known before a prediction can be made.
E)   The value of Kb for the species in solution must be known before a prediction can be made.F) B) and C)
G) A) and D)

Question 2

Which one of the following is a strong base?

Accepted Answer

A)   LiOH
B)   CH3COOH
C)   NH3
D)   H3PO4
E)   HClO2F) A) and D)
G) B) and D)

Question 3

Which is an amphoteric oxide?

Accepted Answer

A)   Na2O
B)   MgO
C)   Al2O3
D)   SO2
E)   Cl2O7F) A) and B)
G) C) and D)

Question 4

Which is the most acidic oxide?

Accepted Answer

A)   SO2
B)   Al2O3
C)   CaO
D)   PbO
E)   H2OF) B) and C)
G) B) and E)

Question 5

What are the products of hydrolysis of NH4Cl?

Accepted Answer

A)   NH4+ + HCl
B)   NH3 + OH- + HCl
C)   NH3 + H3O+ + Cl-
D)   NH4OH + HCl
E)   No hydrolysis occurs.F) A) and B)
G) B) and E)

Question 6

What is the conjugate base of NH3?

Accepted Answer

A)   NH2
B)   NH2+
C)   NH2-
D)   NH4
E)   NH4+F) D) and E)
G) A) and C)

Question 7

What is the value of Kb for the cyanide anion, CN-? Ka(HCN)  = 6.2 × 10-10

Accepted Answer

A)   1.6 × 10-4
B)   1.6 × 10-5
C)   3.8 × 10-4
D)   3.8 × 10-5
E)   6.2 × 104F) B) and C)
G) C) and D)

Question 8

What is the conjugate acid of the acetate ion?

Accepted Answer

A)   CH3O2-
B)   COOH
C)   HC2H3O2
D)   H2O
E)   CH4F) A) and E)
G) None of the above

Question 9

What is the H+ ion concentration in a 2.1 × 10-4 M Ca(OH) 2 solution?

Accepted Answer

A)   7.3 × 10-4 M
B)   4.2 × 10-4 M
C)   2.1 × 10-4 M
D)   2.4 × 10-11 M
E)   4.8 × 10-11 MF) A) and D)
G) B) and E)

Question 10

Which is the strongest acid?

Accepted Answer

A)   HBrO3
B)   HFO3
C)   HIO3
D)   HClO3
E)   All are of equal strength.F) C) and D)
G) B) and D)

Question 11

The stronger the acid, the weaker its conjugate base.

Accepted Answer

A) True 
 B)False

Question 12

Kw = 1.0 × 10-14 under all conditions.

Accepted Answer

A) True 
 B)False

Question 13

Which is the weakest acid?

Accepted Answer

A)   HBrO4
B)   HBr
C)   HBrO2
D)   HBrO
E)   HBrO3F) B) and E)
G) All of the above

Question 14

What is the pOH of a 0.0085 M KOH solution?

Accepted Answer

A)   2.07
B)   4.85
C)   9.15
D)   11.93
E)   0.0085F) A) and C)
G) A) and D)

Question 15

Which one of the following is a strong acid?

Accepted Answer

A)   CH3COOH
B)   H2SO3
C)   NH3
D)   H3PO4
E)   HClO3F) C) and E)
G) All of the above

Question 16

Which one of these responses is true with regard to a 0.1 M solution of a weak acid HA?

Accepted Answer

A)   [H+] > 0.1 M.
B)   pH = 1.0
C)   [H+] -]
D)   pH > 1.0
E)   [OH-] > [H+]F) A) and B)
G) A) and C)

Question 17

In the reaction, HSO4-(aq)  + OH-(aq)  4-(aq)  + OH-(aq)    SO42-(aq)  + H2O(l) , the conjugate acid-base pairs are   A)  HSO4- and SO42-; H2O and OH-. B)  HSO4- and H3O+; SO42 - and OH-. C)  HSO4- and OH-; SO42 - and H2O. D)  HSO4- and H2O; OH - and SO42-. E)  HSO4- and OH-; SO42 - and H3O+." class="answers-bank-image d-inline" rel="preload" > SO42-(aq)  + H2O(l) , the conjugate acid-base pairs are 4-(aq)  + OH-(aq)    SO42-(aq)  + H2O(l) , the conjugate acid-base pairs are   A)  HSO4- and SO42-; H2O and OH-. B)  HSO4- and H3O+; SO42 - and OH-. C)  HSO4- and OH-; SO42 - and H2O. D)  HSO4- and H2O; OH - and SO42-. E)  HSO4- and OH-; SO42 - and H3O+." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   HSO4- and SO42-; H2O and OH-.
B)   HSO4- and H3O+; SO42 - and OH-.
C)   HSO4- and OH-; SO42 - and H2O.
D)   HSO4- and H2O; OH - and SO42-.
E)   HSO4- and OH-; SO42 - and H3O+.F) All of the above
G) A) and E)

Question 18

The reaction of a strong acid with water results in

Accepted Answer

A)   a weak conjugate acid.
B)   a strong conjugate base.
C)   a weak conjugate base.
D)   a strong base.
E)   pure water.F) D) and E)
G) A) and B)

Question 19

Which of the following is the correct Kb expression for the reaction below? B(aq)  + H2O(l)  b expression for the reaction below? B(aq)  + H2O(l)    HB+(aq)  + OH-(aq)  A)  Kb = [B][H2O] B)    C)    D)    E)  Kb = [HB+][OH-]" class="answers-bank-image d-inline" rel="preload" > HB+(aq)  + OH-(aq)

Accepted Answer

A)   Kb = [B][H2O]
B)   b expression for the reaction below? B(aq)  + H2O(l)    HB+(aq)  + OH-(aq)  
A)   Kb = [B][H2O] 
B)     
C)     
D)     
E)   Kb = [HB+][OH-]" class="answers-bank-image d-inline" rel="preload" >
C)   b expression for the reaction below? B(aq)  + H2O(l)    HB+(aq)  + OH-(aq)  
A)   Kb = [B][H2O] 
B)     
C)     
D)     
E)   Kb = [HB+][OH-]" class="answers-bank-image d-inline" rel="preload" >
D)   b expression for the reaction below? B(aq)  + H2O(l)    HB+(aq)  + OH-(aq)  
A)   Kb = [B][H2O] 
B)     
C)     
D)     
E)   Kb = [HB+][OH-]" class="answers-bank-image d-inline" rel="preload" >
E)   Kb = [HB+][OH-]F) B) and D)
G) None of the above

Question 20

After a substance acting as a strong acid reacts, what remains of the acid?

Accepted Answer

A)   a weak conjugate base
B)   a strong conjugate base
C)   a strong conjugate acid
D)   a strong acid
E)   a weak conjugate acidF) C) and D)
G) A) and E)

Exam 16: Acids and Bases

Kw = 1.0 × 10-14 under all conditions.

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Which one of the following is a strong acid?

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Which is the strongest acid?

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The stronger the acid, the weaker its conjugate base.

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What is the value of Kb for the cyanide anion, CN-? Ka(HCN) = 6.2 × 10-10

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What is the pOH of a 0.0085 M KOH solution?

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Which is an amphoteric oxide?

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Which is the most acidic oxide?

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The reaction of a strong acid with water results in

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Which of the following is the correct Kb expression for the reaction below? B(aq) + H2O(l) HB+(aq) + OH-(aq)

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What is the H+ ion concentration in a 2.1 × 10-4 M Ca(OH) 2 solution?

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In the reaction, HSO4-(aq) + OH-(aq) SO42-(aq) + H2O(l) , the conjugate acid-base pairs are

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Which one of the following is a strong base?

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What is the conjugate acid of the acetate ion?

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After a substance acting as a strong acid reacts, what remains of the acid?

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What is the conjugate base of NH3?

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Which one of these responses is true with regard to a 0.1 M solution of a weak acid HA?

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What are the products of hydrolysis of NH4Cl?

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Which is the weakest acid?

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A solution is prepared by adding 0.10 mol of iron(III) nitrate, Fe(NO3) 3, to 1.00 L of water. Which statement about the solution is correct?

Correct AnswerverifiedShow Answer

K_w = 1.0 × 10^-14 under all conditions.

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What is the value of K_b for the cyanide anion, CN^-? K_a(HCN) = 6.2 × 10^-10

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Which of the following is the correct K_b expression for the reaction below? B(aq) + H₂O(l) HB⁺(aq) + OH^-(aq)

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What is the H⁺ ion concentration in a 2.1 × 10^-4^MCa(OH) ₂ solution?

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In the reaction, HSO₄^-(aq) + OH^-(aq) SO₄^2-(aq) + H₂O(l) , the conjugate acid-base pairs are

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What is the conjugate base of NH₃?

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What are the products of hydrolysis of NH₄Cl?

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A solution is prepared by adding 0.10 mol of iron(III) nitrate, Fe(NO₃) ₃, to 1.00 L of water. Which statement about the solution is correct?

Correct Answer
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