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Science Clinic => Chemistry => Topic started by: piesebel on Nov 18, 2019

Title: A mixture of pentane and hexane has a vapour pressure of 241 Torr. Calculate the mole fraction of ...
Post by: piesebel on Nov 18, 2019

Question 1

Four times as much pentane (C5H12) by mass is mixed with 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. Assume ideal behaviour.
◦ 378 Torr
◦ 385 Torr
◦ 203 Torr
◦ 365 Torr
◦ 214 Torr

Question 2

A mixture of pentane and hexane has a vapour pressure of 241 Torr. Calculate the mole fraction of pentane in the mixture. The vapour pressures of pure pentane and hexane are 425 Torr and 151 Torr, respectively. Assume ideal behaviour.
◦ 0.380
◦ 0.328
◦ 0.672
◦ 0.620
◦ 0.500

Title: A mixture of pentane and hexane has a vapour pressure of 241 Torr. Calculate the mole fraction of ...
Post by: Mochi on Nov 18, 2019

Answer 1

378 Torr

Answer 2

0.328