Interpretation:
Among the given compounds or molecules, the species that possesses
Concept Introduction:
The mass percent composition shows the relative amount of each and every element present in the compound.
The mass percent of any element in the given compound is calculated by the formula,

Answer to Problem 120AP
The correct option is (d).
Explanation of Solution
Reason for correct option:
(d) The given molecule is
The mass of
The mass of
Thus, the total mass of
The mass percent of an element present in the compound is calculated by the formula,
Substitute the respective values of mass of nitrogen and mass of
Thus, the percent by mass of nitrogen in
Reasons for incorrect options:
(a) The given molecule is
The mass of
The mass of
Thus, the total mass of
The mass percent of an element present in the compound is calculated by the formula,
Substitute the respective values of mass of nitrogen and mass of
Thus, the percent by mass of nitrogen in
(b) The given molecule is
The mass of
The mass of
Thus, the total mass of
The mass percent of an element present in the compound is calculated by the formula,
Substitute the respective values of mass of nitrogen and mass of
Thus, the percent by mass of nitrogen in
(c) The given molecule is
The mass of
The mass of
Thus, the total mass of
The mass percent of an element present in the compound is calculated by the formula,
Substitute the respective values of mass of nitrogen and mass of
Thus, the percent by mass of nitrogen in
(e) The given molecule is
The mass of
The mass of
Thus, the total mass of
The mass percent of an element present in the compound is calculated by the formula,
Substitute the respective values of mass of nitrogen and mass of
Thus, the percent by mass of nitrogen in
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Chapter 8 Solutions
Introductory Chemistry: Foundation - Text (Looseleaf)
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