3. A solution is prepared by mixing 7.35 g of propanol (60.09 g/mol), and 3.46 g of hexane (86.18 g/mol).At 20 °C, this solution has a total vapor pressure of

51.8 torr. Is this an ideal solution? If not, is it a positive or negative deviation? The vapor pressure of pure propanol and pure hexane at 25 °C are 14.9 torr and 120. torr, respectively.