Question

water has a vapour pressure of 23.76 torr at 25C.what is the vapour pressure of a solution of sucrose ,if its mole fraction is 0.25?
I assume you mean Xsucrose = 0.25 which makes XH2O = 0.75.
Then Psoln = XH2O*P<sup>o</sup><sub>normal</sub>
Psoln (in torr) = 0.75*23.76

Related Questions

A solution is made by dissolving 46.5g of urea, (CH4N2O) a nonelectrolyte, in 316g of water. Calcula... The vapour pressure of pure water at 110 c is 1070 torr.A soln of ethyleneglycol in water has vapour... Methyl salicylate, C8H8O3, the odorous constituent of oil of wintergreen, has a vapour pressure of 1... A solution of methanol and water has a vapour pressure of 213 Torr. What would you predict as the mo...