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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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