
Concept explainers
Interpretation:
The empirical formula and the molecular formula of the compound are to be determined with given molar mass.
Concept introduction:
The simplest atomic ratio of the mass of the elements present in a compound is known as the empirical formula.
The actual atomic ratio of the mass of the elements present in a compound is the molecular formula.
The mass of hydrogen in
is
The mass of oxygen in
is
The value of
The molecular formula of the compound is given as

Answer to Problem 116AP
Solution: The empirical formula and the molecular formula of the compound are
Explanation of Solution
Given information: The compound contains
The hydrogen to oxygen ratio in the compound is
The given compound contains
Therefore, the weight of the
The amount of
The amount of oxygen present in
The formula for computing the number of moles of an element is as follows:
Substitute the values of the given mass and the molar mass of the hydrogen atom in equation (1)
Substitute the values of the given mass and the molar mass of the carbon atom in equation (1)
Substitute the values of the given mass and the molar mass of the oxygen atom in equation (1)
The simplest molar ratio between C, H, and O is
The empirical formula mass of the compound is calculated as
The value of
The molecular formula of the compound is given as
The empirical formula of the compound is
The molecular formula of the compound is
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Chapter 3 Solutions
Chemistry
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