Question 1

Which of the following is a Br∅nsted-Lowry acid?

Accepted Answer

A)   NH4+
B)   CBr4
C)   PH2-
D)   NH3
E)   F2F) A) and B)
G) None of the above

Question 2

Determine the pH of a 0.232 M Mg(OH) 2 solution at 25°C.

Accepted Answer

A)   12.73
B)   13.37
C)   13.67
D)   0.333
E)   0.634F) A) and D)
G) A) and C)

Question 3

Identify the weak monoprotic acid.

Accepted Answer

A)   H2CO3
B)   NaOH
C)   HCOOH 
D)   HI 
E)   KBrF) D) and E)
G) B) and C)

Question 4

The pH of an aqueous solution at 25.0°C is 10.66.What is the molarity of -11 B)  4.6 × 10-4 C)  3.3 D)  1.1 × 10-13 E)  4.6 × 1010" class="answers-bank-image d-inline" rel="preload" > in this solution?

Accepted Answer

A)   2.2 × 10-11
B)   4.6 × 10-4
C)   3.3
D)   1.1 × 10-13
E)   4.6 × 1010F) C) and D)
G) A) and B)

Question 5

Give the characteristics of a strong acid.

Accepted Answer

A)   ionizes completely in aqueous solutions
B)   has equilibrium far to the right
C)   has a polar bond
D)   has a weaker bond to hydrogen
E)   all of the aboveF) A) and E)
G) A) and D)

Question 6

What is the pH of a 0.40 M H2Se solution that has the stepwise dissociation constants Ka1 = 1.3 × 10-4 and Ka2 = 1.0 × 10-11?

Accepted Answer

A)   2.14
B)   3.89
C)   4.28
D)   5.57E) C) and D)
F) B) and C)

Question 7

Which of the following is a strong base?

Accepted Answer

A)   Br-
B)   NH2CH2CH3
C)   CH3OH
D)   NO3⁻
E)   NaOHF) A) and B)
G) A) and C)

Question 8

What is the pH of a 0.0040 M Sr(OH) 2 solution?

Accepted Answer

A)   2.10
B)   2.40
C)   11.60
D)   11.90
E)   12.00F) D) and E)
G) A) and B)

Question 9

List an ingredient that is in antacid.

Accepted Answer

A)   Al(OH) 3
B)   Mg(OH) 2
C)   CaCO3
D)   all of the above
E)   none of the aboveF) A) and B)
G) D) and E)

Question 10

The stomach excretes ________ to kill microorganisms and to activate enzymes that break down food.

Accepted Answer

A)   H2CO3
B)   HBr
C)   KHCO3
D)   HCl
E)   HNO3F) C) and D)
G) A) and B)

Question 11

Calculate the hydronium ion concentration in an aqueous solution with a pOH of 4.33 at 25°C.

Accepted Answer

A)   2.1 × 10-10 M
B)   9.7 × 10-10 M
C)   4.7 × 10-5 M
D)   3.8 × 10-5 M
E)   6.3 × 10-6 MF) A) and E)
G) C) and E)

Question 12

Determine the pH of a 0.00598 M HClO4 solution.

Accepted Answer

A)   11.777
B)   6.434
C)   7.566
D)   2.223
E)   3.558F) All of the above
G) C) and D)

Question 13

Determine the [OH⁻] concentration in a 0.344 M Ba(OH) 2 solution.

Accepted Answer

A)   0.688 M
B)   0.344 M
C)   0.463
D)   0.334
E)   13.666F) B) and C)
G) A) and D)

Question 14

Which of the following is a strong acid?

Accepted Answer

A)   H   COOH
B)   HF
C)   HI 
D)   NH4+
E)   H2SF) A) and E)
G) C) and D)

Question 15

Which of the following species is amphoteric?

Accepted Answer

A)   SO42-
B)   HF
C)   NH4+
D)   HPO42-
E)   LiIF) A) and C)
G) A) and B)

Question 16

Determine the pH of a 0.62 M NH4NO3 solution at 25°C.The Kb for NH3 is 1.76 × 10-5.

Accepted Answer

A)   2.48
B)   9.27
C)   11.52
D)   4.73
E)   9.45F) C) and E)
G) B) and D)

Question 17

What is the difference between a strong and weak acid?

Accepted Answer

A strong acid ionizes/dissocia...

Question 18

Determine the Ka of an acid whose 0.294 M solution has a pH of 2.80.

Accepted Answer

A)   1.2 × 10-5
B)   8.5 × 10-6
C)   2.7
D)   4.9 × 10-7
E)   5.4 × 10-3F) B) and E)
G) All of the above

Question 19

Which one of the following salts,when 1 mole is dissolved in water,produces the solution with a pH closest to 7.00?

Accepted Answer

A)   NH4ClO4
B)   Na2O
C)   NaHSO4
D)   NaF
E)   NaOHF) A) and B)
G) D) and E)

Question 20

Identify the strongest acid.

Accepted Answer

A)   HFO4
B)   HFO3
C)   HFO2
D)   HFO
E)   Not enough information is given.F) A) and B)
G) C) and D)

Exam 16: Acids and Bases

Calculate the hydronium ion concentration in an aqueous solution with a pOH of 4.33 at 25°C.

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The pH of an aqueous solution at 25.0°C is 10.66.What is the molarity of in this solution?

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Which of the following species is amphoteric?

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Which of the following is a strong base?

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Determine the pH of a 0.62 M NH4NO3 solution at 25°C.The Kb for NH3 is 1.76 × 10-5.

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Which of the following is a strong acid?

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Determine the Ka of an acid whose 0.294 M solution has a pH of 2.80.

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List an ingredient that is in antacid.

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Identify the strongest acid.

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Identify the weak monoprotic acid.

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Give the characteristics of a strong acid.

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What is the difference between a strong and weak acid?

Correct AnswerverifiedA strong acid ionizes/dissocia...View AnswerShow Answer

Determine the [OH⁻] concentration in a 0.344 M Ba(OH) 2 solution.

Correct AnswerverifiedShow Answer

What is the pH of a 0.40 M H2Se solution that has the stepwise dissociation constants Ka1 = 1.3 × 10-4 and Ka2 = 1.0 × 10-11?

Correct AnswerverifiedShow Answer

Determine the pH of a 0.00598 M HClO4 solution.

Correct AnswerverifiedShow Answer

Which one of the following salts,when 1 mole is dissolved in water,produces the solution with a pH closest to 7.00?

Correct AnswerverifiedShow Answer

Which of the following is a Br∅nsted-Lowry acid?

Correct AnswerverifiedShow Answer

The stomach excretes ________ to kill microorganisms and to activate enzymes that break down food.

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Determine the pH of a 0.232 M Mg(OH) 2 solution at 25°C.

Correct AnswerverifiedShow Answer

What is the pH of a 0.0040 M Sr(OH) 2 solution?

Correct AnswerverifiedShow Answer

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Determine the pH of a 0.62 M NH₄NO₃ solution at 25°C.The K_b for NH₃ is 1.76 × 10^-5.

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Determine the K_a of an acid whose 0.294 M solution has a pH of 2.80.

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A strong acid ionizes/dissocia...
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Determine the [OH⁻] concentration in a 0.344 M Ba(OH) ₂ solution.

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What is the pH of a 0.40 M H₂Se solution that has the stepwise dissociation constants K_a1 = 1.3 × 10^-4 and K_a2 = 1.0 × 10^-11?

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Determine the pH of a 0.00598 M HClO₄ solution.

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Determine the pH of a 0.232 M Mg(OH) ₂ solution at 25°C.

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What is the pH of a 0.0040 M Sr(OH) ₂ solution?

Correct Answer
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