41.3-gram sample of a solution of naphthalene, C10H8(s), in benzene, C6H6(l ), has a vapor pressure at 20.0°C of 63.9 Torr. The vapor pressure of pure benzene at 20.0°C is 75.0 Torr. Assuming that naphthalene has a negligible vapor pressure over the solution, use the vapor pressure–lowering expression given by ΔP1 = x2 P1° or ( 1 – x 1 ) P 1° to calculate the mole fraction of naphthalene and the number of grams of naphthalene in the solution.
41.3-gram sample of a solution of naphthalene, C10H8(s), in benzene, C6H6(l ), has a vapor pressure at 20.0°C of 63.9 Torr. The vapor pressure of pure benzene at 20.0°C is 75.0 Torr. Assuming that naphthalene has a negligible vapor pressure over the solution, use the vapor pressure–lowering expression given by ΔP1 = x2 P1° or ( 1 – x 1 ) P 1° to calculate the mole fraction of naphthalene and the number of grams of naphthalene in the solution.
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter12: Solutions
Section: Chapter Questions
Problem 12.85QE
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A 41.3-gram sample of a solution of naphthalene, C10H8(s), in benzene, C6H6(l ), has a vapor pressure at 20.0°C
of 63.9 Torr. The vapor pressure of pure benzene at 20.0°C is 75.0 Torr. Assuming that naphthalene has a negligible vapor pressure over the solution, use the vapor pressure–lowering expression given by
ΔP1 = x2 P1° or
( 1 – x 1 ) P 1°
to calculate the mole fraction of naphthalene and the number of grams of naphthalene in the solution.
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