4. The density of acetonitrile (CH3CN) is 0.786 g/mL and the density of methanol (CH3OH) is 0.791 g/mL. A solution is made by dissolving 25.0 mL CH3OH in 100 mL CH3CN. (a) What is the mole fraction of methanol in the solution? (b) What is the molality of the solution?

Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter13: Solutions And Their Behavior
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4. The density of acetonitrile
(CH3CN) is 0.786 g/mL and
the density of methanol
(CH3OH) is 0.791 g/mL. A
solution is made by dissolving
25.0 mL CH3OH in 100 mL
CH3CN. (a) What is the mole
fraction of methanol in the
solution? (b) What is the
molality of the solution?
Transcribed Image Text:4. The density of acetonitrile (CH3CN) is 0.786 g/mL and the density of methanol (CH3OH) is 0.791 g/mL. A solution is made by dissolving 25.0 mL CH3OH in 100 mL CH3CN. (a) What is the mole fraction of methanol in the solution? (b) What is the molality of the solution?
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