The vapour pres sure of acetone at is 185 torr. when 1.2 g of non-volatile substances was dissolved in 100 g of acetone at , its vapour pressure was 183 torr. the molar mass (g mol^{-1 ) of the substances is ;

The vapour pres sure of acetone at is 185 torr. when 1.2 g of non-v

1.	The vapour pres sure of acetone at is 185 torr. when 1.2 g of non-volatile substances was dissolved in 100 g of acetone at , its vapour pressure was 183 torr. the molar mass (g mol^{-1 ) of the substances is ;
Answer» The vapour pressure of ACETONE at 20oC is 185 torr. When 1.2 G of a non-volatile substance was dissolved in 100 g of acetone at 20oC, its vapour pressure was 183 torr. The molar mass (g mol-1 ) of the substance is: 32.