(a) Interpretation: Whether MES, MOPS or HEPS is effective at pH 7.0 should be determined. Concept introduction: The effectiveness of a buffer can be determined by the fact that the pH values and the p K a lies close to each other. If this value is not close the buffer will not be effective.

Question

Be sure to answer all parts. Tris [tris(hydroxymethyl)aminomethane] is a common buffer for studying biological systems. (K, = 5.01 x 109 and pk, 8.3) %3D %3D (a) Calculate the pH of the Tris buffer after mixing 10.5 mL of 0.20 M HCI solution with 25.0 mL of 0.10 M Tris. 7.06 (b) This buffer was used to study an enzyme-catalyzed reaction. As a result of the reaction, 0.00020 mol of H* was produced. What is the pH of the buffer at the end of the reaction? (c) What would be the final pH if no buffer were present?

Answer 1

Question

Chapter 1, Problem 28P

Interpretation Introduction

(a)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 7.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

Interpretation Introduction

(b)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 6.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

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Be sure to answer all parts. Tris [tris(hydroxymethyl)aminomethane] is a common buffer for studying biological systems. (K, = 5.01 x 109 and pk, 8.3) %3D %3D (a) Calculate the pH of the Tris buffer after mixing 10.5 mL of 0.20 M HCI solution with 25.0 mL of 0.10 M Tris. 7.06 (b) This buffer was used to study an enzyme-catalyzed reaction. As a result of the reaction, 0.00020 mol of H* was produced. What is the pH of the buffer at the end of the reaction? (c) What would be the final pH if no buffer were present?

Substituent effects. What is the pHPpH of a 0.1 M0.1 M solution of chloroacetic acid (CICH2 COOH, pKa=2.86)? (CICH, COOH, pK, = 2.86) ? do

Paraphrasing Tool . medicinal meet Mniversity of Nizwa pKa of flurazepam is 8.71. Ifthe pH of the stomach is 3.5 and that of intestine is 6.0 then oral flurazepam will be t of Flurazepam Select one: a. ionized in the stomach and neutral in the intestine O b. neutral in the stomach and ionized in the intestine O c. ionized in both the stomach and the intestine O d. neutral in both the stomach and the intestine Which of the following molecules is neutral?

Answer 2

Question

Chapter 1, Problem 28P

Interpretation Introduction

(a)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 7.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

Interpretation Introduction

(b)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 6.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

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Answer 3

Question

Chapter 1, Problem 28P

Interpretation Introduction

(a)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 7.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

Interpretation Introduction

(b)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 6.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

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Answer 4

Question

Chapter 1, Problem 28P

Interpretation Introduction

(a)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 7.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

Interpretation Introduction

(b)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 6.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

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Answer 5

Chapter 1, Problem 28P

Interpretation Introduction

(a)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 7.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

Interpretation Introduction

(b)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 6.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

Answer 6

Chapter 1, Problem 28P

Interpretation Introduction

(a)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 7.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

Answer 7

Chapter 1, Problem 28P

Interpretation Introduction

(a)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 7.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

Answer 8

Interpretation Introduction

(b)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 6.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

Answer 9

Interpretation Introduction

(b)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 6.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

Answer 10

Expert Solution & Answer

Answer 11

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Answer 21

Ch. 1 - Prob. 1P Ch. 1 - Prob. 2P Ch. 1 - Prob. 3P Ch. 1 - Prob. 4P Ch. 1 - Prob. 5P Ch. 1 - Prob. 6P Ch. 1 - Prob. 7P Ch. 1 - Prob. 8P Ch. 1 - Prob. 9P Ch. 1 - Prob. 10P

(a) Interpretation: Whether MES, MOPS or HEPS is effective at pH 7.0 should be determined. Concept introduction: The effectiveness of a buffer can be determined by the fact that the pH values and the p K a lies close to each other. If this value is not close the buffer will not be effective.

(a) Interpretation: Whether MES, MOPS or HEPS is effective at pH 7.0 should be determined. Concept introduction: The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

(b) Interpretation: Whether MES, MOPS or HEPS is effective at pH 6.0 should be determined. Concept introduction: The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

Chapter 1 Solutions

(a)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 7.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.

(b)

Interpretation:

Whether MES, MOPS or HEPS is effective at pH 6.0 should be determined.

Concept introduction:

The effectiveness of a buffer can be determined by the fact that the pH values and the pKa lies close to each other. If this value is not close the buffer will not be effective.