CBSE Class 11-science Answered
Calculate
Asked by shekhar14351 | 28 Feb, 2010, 10:40: PM
Expert Answer
M NaCl = 58.5
w NaCl = ?
ΔTf = 3
kf = 1.86
w1 = 1 kg
Since NACl is a stromg electrolyte which dissociates completely in water, i = 2
ΔTf = i .kf. w NaCl
M NaCl . w1
3 = 2 x 1.86 x w2
58.5 x 1
w2 = 47.18 g
Answered by | 02 Mar, 2010, 11:51: AM
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