An HCl solution has a pH of 3.10. What is its [H3O+]?

A) 7.9 × 10−18 M B) 1.3 × 10−11 M C) 7.9 × 10−4 M D) 1.3 × 103 M A) 7.9 × 10−18 M B) 1.3 × 10−11 M C) 7.9 × 10−4 M D) 1.3 × 103 M

The pKa of acetic acid (HC2H3O2) is 4.75. What is the pH of a buffer in which [HC2H3O2] = 2.0 M and [NaC2H3O2] = 0.20 M?

A) 3.75 B) 4.75 C) 5.75 D) 7.00 A) 3.75 B) 4.75 C) 5.75 D) 7.00

Exam 8: Acids and Bases

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Cyanide ion, CN⁻, is a stronger base than ammonia, NH₃. Which of the following represents the correct set of species that are present in the solution in the largest amounts when ammonia (NH₃) reacts with hydrocyanic acid (HCN)?

(Multiple Choice)

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Question 41

Which of the following is true of the position of the equilibrium established when acetate ions react with hydrogen sulfide as represented below? CH₃COO⁻ + H₂S ⇋ CH₃COOH + HS⁻

(Multiple Choice)

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Question 42

Examine the following image. Assume the solution in the beaker is a buffer solution. What will be the pH of the resulting solution when 0.01 mol of HCl is added to this solution?

(Multiple Choice)

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Question 43

Which of the following occurs when NaOH is dissolved in water to form a basic solution?

(Multiple Choice)

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Question 44

Which of the following species is not present in the solution when hydrogen chloride gas is dissolved in water?

(Multiple Choice)

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Question 45

Hydrocyanic acid (HCN) is a weaker acid than ammonium ion (NH₄⁺). Which of the following represents the correct set of major species that are present in the solution when hydrocyanic acid (HCN) reacts with ammonia (NH₃)?

(Multiple Choice)

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Question 46

Which of the following solutions will require the most NaOH in a titration experiment? Assume complete neutralization.

(Multiple Choice)

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Question 47

An HCl solution has a pH of 3.10. What is its [H₃O⁺]?

(Multiple Choice)

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Question 48

Which of the following is true of all titrations?

(Multiple Choice)

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Question 49

What is a shortcoming of the original buffers made from simple weak acids and bases?

(Multiple Choice)

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Question 50

Ammonia, NH₃, is a stronger base than the acetate ion, CH₃COO⁻. Which of the following represents the correct set of species that are present in the solution in the largest amounts when acetic acid (CH₃COOH) reacts with ammonia (NH₃)?

(Multiple Choice)

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Question 51

The pK_a of acetic acid (HC₂H₃O₂) is 4.75. What is the pH of a buffer in which [HC₂H₃O₂] = 2.0 M and [NaC₂H₃O₂] = 0.20 M?

(Multiple Choice)

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Question 52

Which base is sometimes used as a laxative?

(Multiple Choice)

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Question 53

Which of the following represents the correct set of products formed when a metal oxide reacts with a strong acid?

(Multiple Choice)

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Question 54

Which of the following species is not amphiprotic?

(Multiple Choice)

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Question 55

Which of the following solutions can function as a buffer?

(Multiple Choice)

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Question 56

Which of the following acids has the strongest conjugate base?

(Multiple Choice)

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Question 57

What type of reaction occurs when an acid reacts with an active metal?

(Multiple Choice)

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Question 58

Which base is an important starting material in the manufacture of fertilizers?

(Multiple Choice)

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Question 59

An HCl solution has a pH of 3.10. What is its [OH⁻]?

(Multiple Choice)

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Question 60

Showing 41 - 60 of 198

Exam 8: Acids and Bases

Cyanide ion, CN−, is a stronger base than ammonia, NH3. Which of the following represents the correct set of species that are present in the solution in the largest amounts when ammonia (NH3) reacts with hydrocyanic acid (HCN)?

Which of the following is true of the position of the equilibrium established when acetate ions react with hydrogen sulfide as represented below? CH3COO− + H2S ⇋ CH3COOH + HS−

Examine the following image. Assume the solution in the beaker is a buffer solution. What will be the pH of the resulting solution when 0.01 mol of HCl is added to this solution?

Which of the following occurs when NaOH is dissolved in water to form a basic solution?

Which of the following species is not present in the solution when hydrogen chloride gas is dissolved in water?

Hydrocyanic acid (HCN) is a weaker acid than ammonium ion (NH4+). Which of the following represents the correct set of major species that are present in the solution when hydrocyanic acid (HCN) reacts with ammonia (NH3)?

Which of the following solutions will require the most NaOH in a titration experiment? Assume complete neutralization.

An HCl solution has a pH of 3.10. What is its [H3O+]?

Which of the following is true of all titrations?

What is a shortcoming of the original buffers made from simple weak acids and bases?

Ammonia, NH3, is a stronger base than the acetate ion, CH3COO−. Which of the following represents the correct set of species that are present in the solution in the largest amounts when acetic acid (CH3COOH) reacts with ammonia (NH3)?

The pKa of acetic acid (HC2H3O2) is 4.75. What is the pH of a buffer in which [HC2H3O2] = 2.0 M and [NaC2H3O2] = 0.20 M?

Which base is sometimes used as a laxative?

Which of the following represents the correct set of products formed when a metal oxide reacts with a strong acid?

Which of the following species is not amphiprotic?

Which of the following solutions can function as a buffer?

Which of the following acids has the strongest conjugate base?

What type of reaction occurs when an acid reacts with an active metal?

Which base is an important starting material in the manufacture of fertilizers?

An HCl solution has a pH of 3.10. What is its [OH−]?

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Cyanide ion, CN⁻, is a stronger base than ammonia, NH₃. Which of the following represents the correct set of species that are present in the solution in the largest amounts when ammonia (NH₃) reacts with hydrocyanic acid (HCN)?

Which of the following is true of the position of the equilibrium established when acetate ions react with hydrogen sulfide as represented below? CH₃COO⁻ + H₂S ⇋ CH₃COOH + HS⁻

Hydrocyanic acid (HCN) is a weaker acid than ammonium ion (NH₄⁺). Which of the following represents the correct set of major species that are present in the solution when hydrocyanic acid (HCN) reacts with ammonia (NH₃)?

An HCl solution has a pH of 3.10. What is its [H₃O⁺]?

Ammonia, NH₃, is a stronger base than the acetate ion, CH₃COO⁻. Which of the following represents the correct set of species that are present in the solution in the largest amounts when acetic acid (CH₃COOH) reacts with ammonia (NH₃)?

The pK_a of acetic acid (HC₂H₃O₂) is 4.75. What is the pH of a buffer in which [HC₂H₃O₂] = 2.0 M and [NaC₂H₃O₂] = 0.20 M?

An HCl solution has a pH of 3.10. What is its [OH⁻]?