Concept explainers
(a)
Interpretation:
The percent composition of nitrogen in
(a)
Explanation of Solution
The percent composition of any substance is calculated by dividing the mass of the substance in a sample by the total mass of the sample. This ratio is multiplied by
To determine the percent composition, let the sample size be
The mass of Na from the periodic table is
The mass of N from the periodic table is
The mass of O from the periodic table is
Therefore, the total mass of
Now, the percent composition of N is as follows:
(b)
Interpretation:
The percentage of nitrogen in
(b)
Explanation of Solution
To determine the percent composition, let the sample size be
The mass of N from the periodic table is
The mass of H from the periodic table is
The mass of Cl from the periodic table is
Therefore, the total mass of
Now, the percent composition of N is as follows:
(c)
Interpretation:
The percentage of nitrogen in
(c)
Explanation of Solution
To determine the percent composition, let the sample size be
The mass of N from the periodic table is
The mass of H from the periodic table is
Therefore, the total mass of
Now, the percent composition of N is as follows:
(d)
Interpretation:
The percentage of nitrogen in
(d)
Explanation of Solution
To determine the percent composition, let the sample size be
The mass of N from the periodic table is
The mass of O from the periodic table is
Therefore, the total mass of
Now, the percent composition of N is as follows:
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Chapter 4 Solutions
EBK INTRODUCTION TO CHEMISTRY
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