Solve this A-8 A sample of O2 gas is collected over water at - Chemistry - Chemistry in Everyday Life

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A-8 A sample of O 2 gas is collected over water at 23 ° C at a
barometric pressure of 751 mm Hg (vapour pressure of water at 23
° C is 21 mm Hg) The partial pressure of O 2 gas in the sample
collected is

(1) 21 mm Hg (2) 751 mm Hg (3) 0 96 atm (4) 1 02 atm

Mohan Kumar · Accepted Answer

Dear Student
Using the Dalton's law
PT = Poxygen +Pwater
At 23 0 o C the vapor pressure of water is 21mmHg
751mmHg = Poxygen + 21 mmHg
Poxygen = 751 mmHg - 21 mmHg
Poxygen =730 mmHg

Convert the partial pressur of oxygen in to atmosphere
(730 mmHg) (1 atm / 760 mmHg) = 0 96 atm
â€‹therefore,option 3 is correct
Regards

Solve this A-8. A sample of O 2 gas is collected over water at 23 ° C at a barometric pressure of 751 mm Hg (vapour pressure of water at 23 ° C is 21 mm Hg). The partial pressure of O 2 gas in the sample collected is (1) 21 mm Hg (2) 751 mm Hg (3) 0.96 atm (4) 1.02 atm

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A-8. A sample of $O_{2}$ gas is collected over water at $23 ° C$ at a barometric pressure of 751 mm Hg (vapour pressure of water at $23 ° C$ is 21 mm Hg). The partial pressure of $O_{2}$ gas in the sample collected is

(1) 21 mm Hg (2) 751 mm Hg (3) 0.96 atm (4) 1.02 atm