Calc. the pressure of dry O2 if the total pressure of O2 generated over water is measured to be 638 torr and the temp. 22C PH2O=19.8 torr?

👨🏻‍🏫 學術台化學

[匿名]

2017-10-25 1:35 pm

回答 (1)

戇戇居士

2017-10-25 1:54 pm

✔ 最佳答案

Pressure of dry O₂
= (Total pressure) - (Vapor pressure of water)
= (638 - 19.8) torr
= 618.2 torr
= 618 torr (to 3 sig. fig.)

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