1.

The estimated van't Hoff factor for acetic acid solution in benzene is ……………

Answer»

Solution :(i) van.t HOFF factor is defined as the ratio of the actual MOLAR MASS to the abnormal (calculated) molar mass of the solute.
(ii) `i=("Noraml molar mass")/("OBSERVED(abnormal") molar mass")`
`i=("Observed colligative property")/("Calculate colligative property")`
van.t Hoff factor (i) for ACETIC acid `= (60)/(120) =0.5`
(iii) van.t Hoff factor (i) for NaCl `= (117)/(58.85) =2`


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