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Glycerin (C3H8O3) is a nonvolatile liquid. What is the vapor pressure of a solution made by adding 180. g of glycerin to 321 mL...Asked by tay
Glycerin, C3H8O3, is a nonvolatile liquid. What is the vapor pressure of a solution made by adding 164 g of glycerin to 325 mL of H2O at 39.8°C? The vapor pressure of pure water at 39.8°C is 54.74 torr and its density is 0.992 g/cm3.
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Answered by
DrBob222
Calculate moles glycerin. moles = grams/molar mass
Calculate moles H2O. Use density to obtain mass, then moles = grams/molar mass.
X = mole fraction H2O = mols H2O/total moles.
Psoln = XH2O*P<sup>o<sup><sub>H2O</sub>
Calculate moles H2O. Use density to obtain mass, then moles = grams/molar mass.
X = mole fraction H2O = mols H2O/total moles.
Psoln = XH2O*P<sup>o<sup><sub>H2O</sub>
Answered by
DrBob222
This may look a little better.
P<sub>soln</sub> = X<sub>H2O</sub>*P<sup>o</sup><sub>H2O</sub>
P<sub>soln</sub> = X<sub>H2O</sub>*P<sup>o</sup><sub>H2O</sub>
Answered by
Anonymous
49.958torr
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