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Question: octane and nonane are liquids which are components of gasoline...

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  1. Octane and nonane are liquids which are components of gasoline. Their vapor pressures at 25°C are 13.9 torr and 4.7 torr, respectively. What is the vapor pressure of a mixture consisting of 1 mole of each of these compounds?

2. If a 100-mL sample of a volatile liquid such as diethyl ether is introduced into a 250-mL flask which is immediately sealed, the pressure inside will increase above atmospheric pressure. Explain.

3. If the shell of a raw egg is carefully dissolved away, and the egg in its flexible membrane is then placed in distilled water, the egg's volume will expand. Explain.

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