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13 December, 19:23

A gas is collected over water at 25C and the volume inside the inverted container is equalized with the water level outside the container. The barometric pressure is 749.7 torr and the vapor pressure of water is 23.8 torr at 25C. Calculate the dry pressure of the gas.

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  1. 13 December, 19:31
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    The Dry pressure of the gas = 725.9 torr

    Explanation:

    Total barometric pressure = 749.7 torr

    Vapour pressure of water = 23.8 torr

    The total pressure is = Vapour pressure of water + Dry pressure of the gas

    749.7 = 23.8 + Dry pressure of the gas

    Dry pressure of the gas = 749.7 - 23.8

    Dry pressure of the gas = 725.9 torr

    Therefore the Dry pressure of the gas = 725.9 torr
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