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Q. The weight of glucose dissolved in 100gm of water produce same lowering of vapour pressure as 1gm urea dissolved in 50gm of water at same temperature is

NTA AbhyasNTA Abhyas 2022

Solution:

Since same lowering in vapour pressure. Mole fractions of solutes should be equal.
Xurea =Xglucose 
160160+5018=w180w180+10018
1605018=w18010018
For dilute solution w=6 gm of glucose