When 3 g of a nonvolatile solute is dissolved in 50 g of water, the relative lowering of vapour pressure observed is 0.018 Nm-2. Molecular weight of the substance is
A. 60
B. 30
C. 40
D. 120
Answer:A
When 3 g of a nonvolatile solute is dissolved in 50 g of water, the relative lowering of vapour pressure observed is 0.018 Nm-2. Molecular weight of the substance is
A. 60 B. 30 C. 40 D. 120