Chapter 2, Problem 64PS

### Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

Chapter
Section

### Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

# Calculate the amount (moles) represented by each of the following:(a) 16.0 g of Na(b) 0.876 g of tin(c) 0.0034 g of platinum(d) 0.983 g of Xe

(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

The amount of sodium is given as 16â€‰g.

Molar mass of sodium is 22.990â€‰g/mol.

Conversion formula for mass of an atom into number moles,

Â Â Â Â Numberâ€‰ofâ€‰molesâ€‰â€‰=â€‰â€‰Massâ€‰inâ€‰gramsâ€‰Mol

(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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