Whether the concentration of lead in the given sample of water can be decreased by boiling, or not, is to be explained. Concept Introduction: Water gets polluted due to the presence of various biological and chemical contaminants in it. Biological contaminants include microorganisms such as Giardia, Legionella while chemical contaminants are mercury, lead, benzene, trichloroethylene etc. Both these render water unfit for consumption by human beings and animals, if the contaminant exceeds a certain limit, termed as Maximum Contaminant Limit. The concentration of a contaminant is reported as the mass of contaminant (in milligrams) present in one liter of water. Hard water is a solution of calcium and magnesium salts in water. Presence of calcium and magnesium ions makes water hard and renders it unusable for various purposes, such as cleaning clothes and utensils, bathing and in water heaters etc. Boiling of water cannot get rid of contaminants because this decreases the total volume of the sample of water but the mass of contaminant remains same. Moreover, the concentration of contaminant increases.

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Answer 1

Question

Chapter 12, Problem 49E

Interpretation Introduction

Interpretation:

Whether the concentration of lead in the given sample of water can be decreased by boiling, or not, is to be explained.

Concept Introduction:

Water gets polluted due to the presence of various biological and chemical contaminants in it. Biological contaminants include microorganisms such as Giardia, Legionella while chemical contaminants are mercury, lead, benzene, trichloroethylene etc. Both these render water unfit for consumption by human beings and animals, if the contaminant exceeds a certain limit, termed as Maximum Contaminant Limit.

The concentration of a contaminant is reported as the mass of contaminant (in milligrams) present in one liter of water.

Hard water is a solution of calcium and magnesium salts in water. Presence of calcium and magnesium ions makes water hard and renders it unusable for various purposes, such as cleaning clothes and utensils, bathing and in water heaters etc.

Boiling of water cannot get rid of contaminants because this decreases the total volume of the sample of water but the mass of contaminant remains same. Moreover, the concentration of contaminant increases.

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Briefly indicate the coordination forms of B and Si in borates and silicates, respectively.

Answer 2

Question

Chapter 12, Problem 49E

Interpretation Introduction

Interpretation:

Whether the concentration of lead in the given sample of water can be decreased by boiling, or not, is to be explained.

Concept Introduction:

Water gets polluted due to the presence of various biological and chemical contaminants in it. Biological contaminants include microorganisms such as Giardia, Legionella while chemical contaminants are mercury, lead, benzene, trichloroethylene etc. Both these render water unfit for consumption by human beings and animals, if the contaminant exceeds a certain limit, termed as Maximum Contaminant Limit.

The concentration of a contaminant is reported as the mass of contaminant (in milligrams) present in one liter of water.

Hard water is a solution of calcium and magnesium salts in water. Presence of calcium and magnesium ions makes water hard and renders it unusable for various purposes, such as cleaning clothes and utensils, bathing and in water heaters etc.

Boiling of water cannot get rid of contaminants because this decreases the total volume of the sample of water but the mass of contaminant remains same. Moreover, the concentration of contaminant increases.

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Answer 3

Question

Chapter 12, Problem 49E

Interpretation Introduction

Interpretation:

Whether the concentration of lead in the given sample of water can be decreased by boiling, or not, is to be explained.

Concept Introduction:

Water gets polluted due to the presence of various biological and chemical contaminants in it. Biological contaminants include microorganisms such as Giardia, Legionella while chemical contaminants are mercury, lead, benzene, trichloroethylene etc. Both these render water unfit for consumption by human beings and animals, if the contaminant exceeds a certain limit, termed as Maximum Contaminant Limit.

The concentration of a contaminant is reported as the mass of contaminant (in milligrams) present in one liter of water.

Hard water is a solution of calcium and magnesium salts in water. Presence of calcium and magnesium ions makes water hard and renders it unusable for various purposes, such as cleaning clothes and utensils, bathing and in water heaters etc.

Boiling of water cannot get rid of contaminants because this decreases the total volume of the sample of water but the mass of contaminant remains same. Moreover, the concentration of contaminant increases.

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Answer 4

Question

Chapter 12, Problem 49E

Interpretation Introduction

Interpretation:

Whether the concentration of lead in the given sample of water can be decreased by boiling, or not, is to be explained.

Concept Introduction:

Water gets polluted due to the presence of various biological and chemical contaminants in it. Biological contaminants include microorganisms such as Giardia, Legionella while chemical contaminants are mercury, lead, benzene, trichloroethylene etc. Both these render water unfit for consumption by human beings and animals, if the contaminant exceeds a certain limit, termed as Maximum Contaminant Limit.

The concentration of a contaminant is reported as the mass of contaminant (in milligrams) present in one liter of water.

Hard water is a solution of calcium and magnesium salts in water. Presence of calcium and magnesium ions makes water hard and renders it unusable for various purposes, such as cleaning clothes and utensils, bathing and in water heaters etc.

Boiling of water cannot get rid of contaminants because this decreases the total volume of the sample of water but the mass of contaminant remains same. Moreover, the concentration of contaminant increases.

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Answer 5

Chapter 12, Problem 49E

Interpretation Introduction

Interpretation:

Whether the concentration of lead in the given sample of water can be decreased by boiling, or not, is to be explained.

Concept Introduction:

Water gets polluted due to the presence of various biological and chemical contaminants in it. Biological contaminants include microorganisms such as Giardia, Legionella while chemical contaminants are mercury, lead, benzene, trichloroethylene etc. Both these render water unfit for consumption by human beings and animals, if the contaminant exceeds a certain limit, termed as Maximum Contaminant Limit.

The concentration of a contaminant is reported as the mass of contaminant (in milligrams) present in one liter of water.

Hard water is a solution of calcium and magnesium salts in water. Presence of calcium and magnesium ions makes water hard and renders it unusable for various purposes, such as cleaning clothes and utensils, bathing and in water heaters etc.

Boiling of water cannot get rid of contaminants because this decreases the total volume of the sample of water but the mass of contaminant remains same. Moreover, the concentration of contaminant increases.

Answer 6

Chapter 12, Problem 49E

Interpretation Introduction

Interpretation:

Whether the concentration of lead in the given sample of water can be decreased by boiling, or not, is to be explained.

Concept Introduction:

Water gets polluted due to the presence of various biological and chemical contaminants in it. Biological contaminants include microorganisms such as Giardia, Legionella while chemical contaminants are mercury, lead, benzene, trichloroethylene etc. Both these render water unfit for consumption by human beings and animals, if the contaminant exceeds a certain limit, termed as Maximum Contaminant Limit.

The concentration of a contaminant is reported as the mass of contaminant (in milligrams) present in one liter of water.

Hard water is a solution of calcium and magnesium salts in water. Presence of calcium and magnesium ions makes water hard and renders it unusable for various purposes, such as cleaning clothes and utensils, bathing and in water heaters etc.

Boiling of water cannot get rid of contaminants because this decreases the total volume of the sample of water but the mass of contaminant remains same. Moreover, the concentration of contaminant increases.

Answer 7

Chapter 12, Problem 49E

Interpretation Introduction

Interpretation:

Whether the concentration of lead in the given sample of water can be decreased by boiling, or not, is to be explained.

Concept Introduction:

Water gets polluted due to the presence of various biological and chemical contaminants in it. Biological contaminants include microorganisms such as Giardia, Legionella while chemical contaminants are mercury, lead, benzene, trichloroethylene etc. Both these render water unfit for consumption by human beings and animals, if the contaminant exceeds a certain limit, termed as Maximum Contaminant Limit.

The concentration of a contaminant is reported as the mass of contaminant (in milligrams) present in one liter of water.

Hard water is a solution of calcium and magnesium salts in water. Presence of calcium and magnesium ions makes water hard and renders it unusable for various purposes, such as cleaning clothes and utensils, bathing and in water heaters etc.

Boiling of water cannot get rid of contaminants because this decreases the total volume of the sample of water but the mass of contaminant remains same. Moreover, the concentration of contaminant increases.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 12 - Prob. 12.1YT Ch. 12 - Which of the following molecules are polar?...Ch. 12 - Which of the following molecules do you expect to...Ch. 12 - Prob. 12.4YT Ch. 12 - Prob. 12.5YT Ch. 12 - Prob. 12.6YT Ch. 12 - Prob. 12.7YT Ch. 12 - Prob. 12.8YT Ch. 12 - Prob. 12.9YT Ch. 12 - Substance A is composed of molecules that have...

Solution Summary: The author explains that water gets polluted due to the presence of various biological and chemical contaminants in it.

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Chapter 12 Solutions