A) \[1.14\text{ }mol\text{ }k{{g}^{-1}}\]
B) \[3.28\text{ }mol\text{ }k{{g}^{-1}}\]
C) \[2.28\text{ }mol\text{ }k{{g}^{-1}}\]
D) \[0.44\text{ }mol\text{ }k{{g}^{-1}}\]
Correct Answer: C
Solution :
Molality\[(m)=\frac{M}{1000d-M{{M}_{1}}}\times 100\] \[M=\]Molarity.\[{{M}_{1}}=\]Molecular mass \[d=Density=\frac{2.05}{(1000\times 1.02)-(2.05\times 60)}\times 1000\] \[=2.28\,mol\,k{{g}^{-1}}\]
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