Pentane (C₅H₁₂) Is Mixed with 75

question 45

Multiple Choice

Pentane (C₅H₁₂) is mixed with 75.8 g hexane (C₆H₁₄) . Calculate the vapour pressure of the resulting solution. The vapour pressures of pure pentane and hexane are 425 Torr and 151 Torr, respectively. The total solution mass is 206.6 g. Assume ideal behaviour.

• A) 335 Torr
• B) 368 Torr
• C) 263 Torr
• D) 360 Torr
• E) 294 Torr

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