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Answer to Question #73102 in General Chemistry for Jessica

Question #73102
When 13 g of heptane and 87 g of octane are mixed at 25 degrees Celsius, calculate the vapor pressure for the resulting solution. Vapor pressure of heptane is 31 torr and that of octane is 11 torr.
1
Expert's answer
2018-02-01T05:08:00-0500
m(СН3(СН2)5СН3) = 13 g
m(C8H8) = 87 g
t = 250C = 298K
p1 = 31 torr
p2 = 11 torr
p - ?
p = p1 + p2 = 31 torr + 11 torr = 44 torr

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