A solution is prepared by dissolving 316 g of sucrose (C12H22011) in 694 g of wa
ID: 1006989 • Letter: A
Question
A solution is prepared by dissolving 316 g of sucrose (C12H22011) in 694 g of water. What is the vapor pressure of this solution at30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)_____________mmHg A solution is prepared by dissolving 316 g of sucrose (C12H22011) in 694 g of water. What is the vapor pressure of this solution at30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
_____________mmHg A solution is prepared by dissolving 316 g of sucrose (C12H22011) in 694 g of water. What is the vapor pressure of this solution at30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
_____________mmHg
Explanation / Answer
Po-ps/P0 = i*Xb
xb = molefraction of solute
(31.8-x)/31.8 = 1*((316/342.3)/((316/342.3)+(694/18))
x = Ps = vapor pressure of solution = 31.05 mmhg
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