
Concept explainers
Interpretation:
Molecular formula of the given hydrocarbon has to be determined using the given data.
Concept Introduction:
Ideal gas Equation:
Where,
Number of moles (n):
M is the molar mass and m is the mass of the given substance.
Pressure can be expressed in different units. But it is normally reported in
General unit conversions:

Answer to Problem 38QRT
The molecular formula is
Explanation of Solution
Given data is shown below,
Sample of
Amount of
Number of moles of
Empirical formula can be obtained by simplifying the number of moles of
Therefore, empirical formula is
Number of moles of
Number of moles of
Therefore,
Molar mass is determined as follows,
Molar mass is
The value of x and y can be determined by taking ratio of molecular molar mass and molar mass of empirical molar mass where
Therefore,
The molecular formula is
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Chapter 8 Solutions
Chemistry: The Molecular Science
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