Zinc metal is added to hydrochloric acid to generate hydrogengas and is collecte

Question

Zinc metal is added to hydrochloric acid to generate hydrogengas and is collected over a liquid whose vapor pressure is the sameas pure water at 20.0 C (18 torr). The volume of the mixtureis 1.7 L and its total pressure is 0.810 atm. Determine the partialpressure of the hydrogen gas in this mixture. Zinc metal is added to hydrochloric acid to generate hydrogengas and is collected over a liquid whose vapor pressure is the sameas pure water at 20.0 C (18 torr). The volume of the mixtureis 1.7 L and its total pressure is 0.810 atm. Determine the partialpressure of the hydrogen gas in this mixture.

Explanation / Answer

change the total pressure into Torr: 0.810 atm @ 760 Torr / 1 atm = 615.6 Torr total find the hydrogen pressure part of the total: 615.6 Torr total - 18 Torr H2O vapor pressure = 597.6Torr must be the Hydrogen

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