A) 0.70
B) 0.50
C) 0.80
D) 0.40
Correct Answer: A
Solution :
[a] \[\frac{p{}^\circ -p}{p{}^\circ }={{X}_{1}}=0.0125=\] mole fraction of solute |
Mole fraction and molarity are related as |
\[\frac{1}{X}-1=\frac{1000}{M\times m}\] |
\[\frac{1}{0.0125}-1=\frac{1000}{18\times m}\] |
\[m=0.70\] |
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