A sample of O₂ is collected over water at 21°C. If the total pressure of the sample is 712 torr, what is the partial pressure of the O₂? The vapor pressure of water at 21°C is 18.6 torr. A)712 torr B)731 torr C)693 torr D)38.3 torr E)not enough information

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Quizplus · Accepted Answer

The partial pressure of O₂ can be found by subtracting the vapor pressure of water at 21°C (18.6 torr) from the total pressure of the sample (712 torr). Therefore, the partial pressure of O₂ is 712 torr - 18.6 torr = 693.4 torr, which rounds to 693 torr.

A Sample of O2 Is Collected Over Water at 21°C

A Sample of O₂ Is Collected Over Water at 21°C