A sample of 5.10 mL of diethylether (C2H5OC2H5; density = 0.7134 g/mL) is introduced into a 6.30 L vessel that already contains a mixture of N2 and O2, whose partial pressures are PN₂ = 76.0 kPa and Po₂ = 21.2 kPa. The temperature is held at 35.0 °C, and the diethylether totally evaporates.

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