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Gaurav Seth 4 years, 3 months ago
Answer: 25%
Explanation: Isotonic solutions are those solutions which have the same osmotic pressure. If osmotic pressures are equal at the same temperature, concentrations must also be equal.
C= concentration
R= solution constant
T= temperature
i= vant hoff factor
For urea solution: 3 g of urea is dissolved in 100 ml of solution.
For solute A: 1.8 g of A is dissolved in 100 ml of solution.
As
0.25 0 0
Total moles after dissociation =
thus
Thus degree of dissociation is 25%.
2Thank You