1 01% of aqueous solution of KNO3 is 90% dissociated at 300K Calculate its osmotic pressure - Chemistry - Solutions

Question

1 01% of aqueous solution of KNO3 is 90% dissociated at 300K
Calculate its osmotic pressure

Vartika Jain · Accepted Answer

Dear Student,

We know that, π=iCRTi=1+α(n-1)For KNO3, n=2and, α=0
90So, i=1+0 90(2-1) =1+0 90 =1 90R=0
0821 Latmmol-1K-1C=1 01 %T=300 Kπ=1 90×1
01×0 0821×300   =47 26 atm

1.01% of aqueous solution of KNO3 is 90% dissociated at 300K. Calculate its osmotic pressure.