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nadya68 [22]
2 years ago
11

4. A 250 mL sample of oxygen gas is collected by water displacement. As a result, the oxygen is saturated with water vapor. The

partial pressure of water vapor at the prevailing temperature is 22 torr. Calculate the partial pressure of the oxygen if the total pressure of the sample is 720 torr.
Chemistry
1 answer:
Andre45 [30]2 years ago
8 0

Answer: The partial pressure of the oxygen is 698 torr

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

p_{total}=p_A+p_B

Given : p_{total} =total pressure of gases = 720 torr

p_{O_2} = partial pressure of O_2 = ?

p_{H_2O} = partial pressure of H_2O = 22 torr

p_{total}=p_{O_2}+p_{H_2O}

720=p_{O_2}+22

p_{O_2}=698torr

Thus the partial pressure of the oxygen is 698 torr

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