the osmotic pressure of a 0.25M urea solution is 2.67 atm. what will be the osmotic pressure of a 0.25M SOLUTION OF POTTASIUM SULPHATE?

Urea is an non electrolyte, hence its Van't Hoff factor is 1
Osmotic pressure of urea solution = 2.67atm
Concentration of urea solution = 0.25M
Osmotic pressure, π = CRT
2.67 = 0.25 RT  ... equation-1

Potassium sulphate is an electrolyte, it dissociate as,
K2SO4  2K+ + SO42-

Van't Hoff factor = Number of articles after dissociationNumber of articles before dissociation = 31 = 3

Concentration of potassium sulphate = 0.25M
Osmotic pressure of potassium sulphate, π = i CRT
π = 3× 0.25 RT ... equation-2
Putting equation-1 in equation-2 we get,
Osmotic pressure of potassium sulphate, π = 8.01atm

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