Question

The molar mass of sodium chloride determined by osmotic pressure would be

Answer 1

The molar mass of sodium chloride determined by osmotic pressure would be

[(23+35.5)/2]=58.5/2=29.25 gmol^-1

This is because the value of i (Van't Hoff Factor) for NaCl is 2.

Answer 2

Molecular mass of nacl determined by osmotic pressure

Molecular mass of NaCl determined by osmotic pressure measurement is found to be half of the actual value.

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