It is given that for a common type of reaction the value of K < < 1 . The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails are to be stated. Concept introduction: If the error in the equilibrium concentration calculated is less than 5 % , the assumption made is stated to be correct. This is known as the ‘ 5 % rule’. If the error exceeds the 5 % value, then the quadratic formula is used for calculating the equilibrium concentrations. To determine: The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails.

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Answer 1

Question

Chapter 12, Problem 8RQ

Interpretation Introduction

Interpretation: It is given that for a common type of reaction the value of K<<1 . The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails are to be stated.

Concept introduction: If the error in the equilibrium concentration calculated is less than 5 % , the assumption made is stated to be correct. This is known as the ‘ 5 % rule’. If the error exceeds the 5 % value, then the quadratic formula is used for calculating the equilibrium concentrations.

To determine: The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails.

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Answer 2

Question

Chapter 12, Problem 8RQ

Interpretation Introduction

Interpretation: It is given that for a common type of reaction the value of K<<1 . The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails are to be stated.

Concept introduction: If the error in the equilibrium concentration calculated is less than 5 % , the assumption made is stated to be correct. This is known as the ‘ 5 % rule’. If the error exceeds the 5 % value, then the quadratic formula is used for calculating the equilibrium concentrations.

To determine: The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails.

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Answer 3

Question

Chapter 12, Problem 8RQ

Interpretation Introduction

Interpretation: It is given that for a common type of reaction the value of K<<1 . The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails are to be stated.

Concept introduction: If the error in the equilibrium concentration calculated is less than 5 % , the assumption made is stated to be correct. This is known as the ‘ 5 % rule’. If the error exceeds the 5 % value, then the quadratic formula is used for calculating the equilibrium concentrations.

To determine: The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails.

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Answer 4

Question

Chapter 12, Problem 8RQ

Interpretation Introduction

Interpretation: It is given that for a common type of reaction the value of K<<1 . The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails are to be stated.

Concept introduction: If the error in the equilibrium concentration calculated is less than 5 % , the assumption made is stated to be correct. This is known as the ‘ 5 % rule’. If the error exceeds the 5 % value, then the quadratic formula is used for calculating the equilibrium concentrations.

To determine: The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails.

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Answer 5

Chapter 12, Problem 8RQ

Interpretation Introduction

Interpretation: It is given that for a common type of reaction the value of K<<1 . The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails are to be stated.

Concept introduction: If the error in the equilibrium concentration calculated is less than 5 % , the assumption made is stated to be correct. This is known as the ‘ 5 % rule’. If the error exceeds the 5 % value, then the quadratic formula is used for calculating the equilibrium concentrations.

To determine: The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails.

Answer 6

Chapter 12, Problem 8RQ

Interpretation Introduction

Interpretation: It is given that for a common type of reaction the value of K<<1 . The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails are to be stated.

Concept introduction: If the error in the equilibrium concentration calculated is less than 5 % , the assumption made is stated to be correct. This is known as the ‘ 5 % rule’. If the error exceeds the 5 % value, then the quadratic formula is used for calculating the equilibrium concentrations.

To determine: The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails.

Answer 7

Chapter 12, Problem 8RQ

Interpretation Introduction

Interpretation: It is given that for a common type of reaction the value of K<<1 . The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails are to be stated.

Concept introduction: If the error in the equilibrium concentration calculated is less than 5 % , the assumption made is stated to be correct. This is known as the ‘ 5 % rule’. If the error exceeds the 5 % value, then the quadratic formula is used for calculating the equilibrium concentrations.

To determine: The assumption made when solving the equilibrium concentrations for reactions with small K values and the procedure followed if the ‘ 5 % rule’ fails.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 12 - Characterize a system at chemical equilibrium with...Ch. 12 - What is the law of mass action? Is it true that...Ch. 12 - Prob. 3RQ Ch. 12 - Prob. 4RQ Ch. 12 - Prob. 5RQ Ch. 12 - Distinguish between the terms equilibrium constant...Ch. 12 - Summarize the steps for solving equilibrium...Ch. 12 - Prob. 8RQ Ch. 12 - What is Le Chteliers principle? Consider the...Ch. 12 - Prob. 10RQ

Solution Summary: The author explains how the quadratic equation method is used for solving the equilibrium concentrations for reactions with small K values and the procedure followed if the 5% rule fails.

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