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4 March, 13:00

The partial pressure of ethanol in the air above a sample of liquid ethanol in a closed container is 19.5 torr, at a given experimental Temperature. Assuming the pressure inside the container is 758.6 torr at the experimental T, what is the molar percent of ethanol in the air?

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  1. 4 March, 15:57
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    The molar percent of ethanol in the air is 2.6%

    Explanation:

    Molar percent of ethanol in the air = partial pressure of ethanol/total pressure * 100 = 19.5 torr/758.6 torr * 100 = 2.6%
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