Q.

The Van’tHoff factor for 0.1 M Ba(NO3)2 solution is 2.74. The degree of dissociation is

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a

91.3%

b

87%

c

100%

d

74%

answer is B.

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Detailed Solution

n=3i=2.74i= 1+α(n-1)2.74 = 1+α(3-1)=1+2α2α=2.74-1=1.74α=1.742=0.87 Degree of ionization of 0.1M Ba(NO3)2 = 0.87percentage of ionization of 0.1M Ba(NO3)2 = 87%
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The Van’tHoff factor for 0.1 M Ba(NO3)2 solution is 2.74. The degree of dissociation is