A solution of30 g of an unknown compound in 116 g of solvent (molar mass =58gmol−1 has vapour pressure of 0.475 atm. If the vapour pressure of pure solvent is 0.5 atm, the molar mass of unknown compound is
A solution of30 g of an unknown compound in 116 g of solvent (molar mass has vapour pressure of 0.475 atm. If the vapour pressure of pure solvent is 0.5 atm, the molar mass of unknown compound is