3. A solution of butanoic acid and water (81.6 % water by mass) is heated to 99.4 °C.. The vapor pressures of the pure substances at this temperature are 95 Torr and 744 Torr, respectively. You should assume that the acid does not dissociate appreciably under these conditions. (a). Determine the composition (mole fractions) of this solution. (b). Assuming the vapor behaves ideally, calculate the composition of the vapor in equilibrium with this solution. (c). This solution is actually an azeotrope that boils at 99.4 °C. Calculate the activity coefficie for the two species.
3. A solution of butanoic acid and water (81.6 % water by mass) is heated to 99.4 °C.. The vapor pressures of the pure substances at this temperature are 95 Torr and 744 Torr, respectively. You should assume that the acid does not dissociate appreciably under these conditions. (a). Determine the composition (mole fractions) of this solution. (b). Assuming the vapor behaves ideally, calculate the composition of the vapor in equilibrium with this solution. (c). This solution is actually an azeotrope that boils at 99.4 °C. Calculate the activity coefficie for the two species.
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter10: Properties Of Solutions
Section: Chapter Questions
Problem 7RQ
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Transcribed Image Text:3. A solution of butanoic acid and water (81.6 % water by mass) is heated to 99.4 °C. The vapor
pressures of the pure substances at this temperature are 95 Torr and 744 Torr, respectively. You
should assume that the acid does not dissociate anpreciably under these conditions.
(a). Determine the composition (mole fractions) of this solution.
(b). Assuming the vapor behaves ideally, calculate the composition of the vapor in equilibrium
with this solution.
(c). This solution is actually an azeotrope that boils at 99.4 °C. Calculate the activity coefficients
for the two species.
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