1.

Vapour pressure of a solution containing 6.0 gm of a non-volatile solute in 180 gm water at 25^(@)C is 20 torr. If 1 "mole" of water is further added, the vapour pressure at 25^(@)C increases by 0.02 torr. Identify the correct information :

Answer»

The MOLAR mass of solute is `54 gm//"mol"`.
The vapour pressure of PURE water at `25^(@)C` its `(182)/(9)` torr.
The molariy of SOLUTION taken initially was `(1)/(1.62) m`
The molarity of FINAL solution is `(1)/(1.782) m`.

Answer :A::B::C::D


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