Camphor is used as solvent to determine molecular weight of non-volatile solute by Rast method because for camphor

Question

Camphor is used as solvent to determine molecular weight of non-volatile solute by Rast method because for camphor (A) It is readily available (B) It is volatile (C) Molal depression constant is high (D) It is solvent for organic substances

Tardigrade Admin · Accepted Answer

Due to higher Kf of camphor (40 K molality - 1 ) about 20 times more than Kf(.1.86.) of water, the depression is 20 times more in case of camphor used as solvent than water.

Q. Camphor is used as solvent to determine molecular weight of non-volatile solute by Rast method because for camphor

It is readily available

It is volatile

Molal depression constant is high

It is solvent for organic substances

Due to higher $K_{f}$ of camphor (40 K molality $^{- 1}$ ) about 20 times more than $K_{f} (1.86)$ of water, the depression is 20 times more in case of camphor used as solvent than water.

Q. Camphor is used as solvent to determine molecular weight of non-volatile solute by Rast method because for camphor

It is readily available

It is volatile

Molal depression constant is high

It is solvent for organic substances

Due to higher Kf​ of camphor (40 K molality −1 ) about 20 times more than Kf​(1.86) of water, the depression is 20 times more in case of camphor used as solvent than water.

Due to higher $K_{f}$ of camphor (40 K molality $^{- 1}$ ) about 20 times more than $K_{f} (1.86)$ of water, the depression is 20 times more in case of camphor used as solvent than water.