Asked by B
Calculate the volume of solution that has a vapour pressure of 31.27 mbar and contains 84.3g of sucrose, at a temperature of 25.0C. The vapour pressure of pure water at 25.0C is 31.7mbar, the density of water is 1.00g/mL, and assume no change in volume occurs upon dissolution.
Answers
Answered by
DrBob222
P<sub>soln</sub> = X<sub>H2O</sub>*P<sup>o</sup><sub>H2O</sub>
You know Psoln and PoH2O; solve for XH2O.
Then
XH2O = nH2O/(nH2O+nsucrose)
You know XH2O and nsucrose, solve for nH2O. Convert mols H2O to grams H2O then use density to convert to mL H2O.
You know Psoln and PoH2O; solve for XH2O.
Then
XH2O = nH2O/(nH2O+nsucrose)
You know XH2O and nsucrose, solve for nH2O. Convert mols H2O to grams H2O then use density to convert to mL H2O.
Answered by
DrBob222
n sucrose = grams sucrose/molar mass sucrose.
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