A Solution Is Prepared by Mixing 75 G of Methanol

Multiple Choice

A solution is prepared by mixing 75 g of methanol (CH₃OH) with 25 g of ethanol (CH₃CH₂OH) . Use the following data to determine the vapor pressure of this solution at 20°C. $\begin{array}{cc} \text { Substance }&\text { Vapor Pressure }\\& \text { at } \mathbf{2 0}{ }^{\circ} \mathbf{C} \text { (torr) } \\\text { Methanol } & 92 \\\text { Ethanol } & 45\end{array}$

A) 69 torr
B) 57 torr
C) 80 torr
D) 73 torr
E) 83 torr