The osmotic pressures of 0.010 M solutio...

The osmotic pressures of 0.010 M solutions of KI and of sucrose `(C_(12)H_(22)O_(11))` are 0.432 atm and 0.24 atm respectively. The vant's Hoff factor for KI is:

`1.80`

`0.80`

`1.2`

`1.0`

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The correct Answer is:

`i= ("Number of particles in KI solution")/("Number of particles in sucrose solution") rArr (pi ("KI solution"))/(pi ("sucrose solution"))= (0.432 atm)/(0.24 atm)= 1.80`

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