The vapor pressures of ethanol (C2H5OH) and 1-propanol (C3H7OH) at 35C are 100 mmHg and 37.6 mmHg,

Question:

The vapor pressures of ethanol (C2H5OH) and 1-propanol (C3H7OH) at 35°C are 100 mmHg and 37.6 mmHg, respectively. Assume ideal behavior and calculate the partial pressures of ethanol and 1-propanol at 35°C over a solution of ethanol in 1-propanol, in which the mole fraction of ethanol is 0.300.