   # Calculate the mass, in grams, of each the following: (a) 4.24 mol of gold (b) 15.6 mol of He (c) 0.063 mol of platinum (d) 3.63 × 10 –4 mol of Pu ### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

#### Solutions

Chapter
Section ### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
Chapter 2, Problem 62PS
Textbook Problem
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## Calculate the mass, in grams, of each the following:(a) 4.24 mol of gold(b) 15.6 mol of He(c) 0.063 mol of platinum(d) 3.63 × 10–4 mol of Pu

(a)

Interpretation Introduction

Interpretation: For the given amounts of atoms in moles, the mass conversions are needed to be calculated.

Concept introduction:

• Conversion formula for mass of an atom into number moles,

Numberofmoles=MassingramsMolarmass

### Explanation of Solution

The amount of gold is given as 4.24mol.

Molar mass of gold is 197g/mol.

Conversion formula for number moles of an atom into mass in grams,

Numberofmoles×Molarma

(b)

Interpretation Introduction

Interpretation: For the given amounts of atoms in moles, the mass conversions are needed to be calculated.

Concept introduction:

• Conversion formula for mass of an atom into number moles,

Numberofmoles=MassingramsMolarmass

(c)

Interpretation Introduction

Interpretation: For the given amounts of atoms in moles, the mass conversions are needed to be calculated.

Concept introduction:

• Conversion formula for mass of an atom into number moles,

Numberofmoles=MassingramsMolarmass

(d)

Interpretation Introduction

Interpretation: For the given amounts of atoms in moles, the mass conversions are needed to be calculated.

Concept introduction:

• Conversion formula for mass of an atom into number moles,

Numberofmoles=MassingramsMolarmass

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