AP EAMCET Medical 23 Apr 2019 Shift 2 Paper

The vapour pressure of a solution of 6.0 g of non - volatile solute in 390 g of benzene at 298 K is 3.00 kPa. If 78 g of benzene is added to this solution the vapour pressure becomes 3.02 kPa at the same temperature. The molar mass of solute in g mol−1 is