Question

oxygen gas is collected over water. the total pressure (the o2 pressure the water vapor pressure) is 732 torr. the temperature of the water is such that the water vapor pressure is 27 torr. what is the partial pressure of the oxygen gas in torr?

Answer 1

Given ,The total pressure = 732 torr

Water vapor pressure = 27 torr

Required?

The total pressure = O2 pressure+ water vapour pressure,

Pt= Po2 + PH2O

Pt= 732 torr

PH2O= 27torr

Pt= Po2+ PH2O

= 732-27 torr

=705 torr

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