CBSE Class 12-science Answered
Numerical
Asked by | 21 Feb, 2009, 11:57: AM
Expert Answer
NaCl 
Na + Cl
i= No of particles in the solution / no of particles taken
I = 1 + 1 / 1
=2
m= w/ 58.5
ΔTf = i Kf m
2 = 2 x 1.86 x w / 58.5
w = 2 x 58.5 / 2 x 1.86
w= 31.45 g
Answered by | 27 Feb, 2009, 09:41: AM
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