# Using the average atomic masses given inside the front cover of this book, calculate the number of moles of each substance contained in the following masses . l type="a"&gt; 2.01 × 10 − 2 g of silver 45.2 mg of ammonium sulfide 61.7 μ of uranium 5.23 kg of sulfur dioxide 272 g of iron(III) nitrate

### Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781337399425

Chapter
Section

### Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781337399425
Chapter 9, Problem 20QAP
Textbook Problem
3 views

## Using the average atomic masses given inside the front cover of this book, calculate the number of moles of each substance contained in the following masses.l type="a"> 2.01 × 10 − 2 g of silver45.2 mg of ammonium sulfide61.7 μ of uranium5.23 kg of sulfur dioxide272 g of iron(III) nitrate

Interpretation Introduction

(a)

Interpretation:

Number of moles of substance should be calculated.

Concept Introduction:

For a substance, number of moles is related to mass and molar mass of the substance as follows:

n=mM

Here, m is mass of substance in g and M is molar mass of substance in g/mol.

Thus, from number of moles, mass can be calculated as follows:

m=n×M.

### Explanation of Solution

Molar mass of Ag =

107.9 g/mol

Number of moles=Mass of the sample in gramsMolar mass

= 2

Interpretation Introduction

(b)

Interpretation:

Number of moles of substance should be calculated.

Concept Introduction:

For a substance, number of moles is related to mass and molar mass of the substance as follows:

n=mM

Here, m is mass of substance in g and M is molar mass of substance in g/mol.

Thus, from number of moles, mass can be calculated as follows:

m=n×M.

Interpretation Introduction

(c)

Interpretation:

Number of moles of substance should be calculated.

Concept Introduction:

For a substance, number of moles is related to mass and molar mass of the substance as follows:

n=mM

Here, m is mass of substance in g and M is molar mass of substance in g/mol.

Thus, from number of moles, mass can be calculated as follows:

m=n×M.

Interpretation Introduction

(d)

Interpretation:

Number of moles of substance should be calculated.

Concept Introduction:

For a substance, number of moles is related to mass and molar mass of the substance as follows:

n=mM

Here, m is mass of substance in g and M is molar mass of substance in g/mol.

Thus, from number of moles, mass can be calculated as follows:

m=n×M.

Interpretation Introduction

(e)

Interpretation:

Number of moles of substance should be calculated.

Concept Introduction:

For a substance, number of moles is related to mass and molar mass of the substance as follows:

n=mM

Here, m is mass of substance in g and M is molar mass of substance in g/mol.

Thus, from number of moles, mass can be calculated as follows:

m=n×M.

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