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A sample of gas collected over water at 25 oC has a total pressure of 723...

A sample of gas collected over water at 25 oC has a total pressure of 723 mmHg. Using the chart on vapor pressure chart on p. 389 of your text, calculate the partial pressure of the gas.

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Answer #1

water vapor at 250C    = 23.8mmHg

total pressure             = 723mmHg

partial pressure of dry gas = total pressure gas- water vapor pressure

                                            = 723-23.8    = 699.2mmHg

The partial pressure of gas = 699.2mmHg >>>>answer

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