(a) Interpretation: The number of moles of hydrogen atoms present in 2.71 g of ammonia ( NH 3 ) should be calculated. Concept Introduction: Number of moles of a compound is calculated by dividing the given mass of the compound by its molar mass. Moles = M a s s M o l a r M a s s The moles of each atom can be determined from the number of atoms of each element in one molecule of the compound.

BuyFind

Introductory Chemistry: A Foundati...

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

Introductory Chemistry: A Foundati...

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

Solutions

Chapter 8, Problem 117AP
Interpretation Introduction

(a)

Interpretation:

The number of moles of hydrogen atoms present in 2.71 g of ammonia (NH3) should be calculated.

Concept Introduction:

Number of moles of a compound is calculated by dividing the given mass of the compound by its molar mass.

Moles=MassMolarMass

The moles of each atom can be determined from the number of atoms of each element in one molecule of the compound.

Interpretation Introduction

(b)

Interpretation:

The number of moles of hydrogen atoms present in 0.824 mole of water (H2O) should be calculated.

Concept Introduction:

The moles of each atom can be determined from the number of atoms of each element in one molecule of the compound.

Interpretation Introduction

(c)

Interpretation:

The number of moles of hydrogen atoms present in 6.25mg of sulfuric acid (H2SO4) should be calculated.

Concept Introduction:

Number of moles of a compound is calculated by dividing the given mass of the compound by its molar mass.

Moles=MassMolarMass

The moles of each atom can be determined from the number of atoms of each element in one molecule of the compound.

Interpretation Introduction

(d)

Interpretation:

The number of moles of hydrogen atoms present in 451g of ammonium carbonate [(NH4)2CO3] should be calculated.

Concept Introduction:

Number of moles of a compound is calculated by dividing the given mass of the compound by its molar mass.

Moles=MassMolarMass

The moles of each atom can be determined from the number of atoms of each element in one molecule of the compound.

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