A) 1.00M
B) 2.00 M
C) 2.50 M
D) 4.00 M
Correct Answer: B
Solution :
Given mass of solute (w) = 120 g mass of solvent (w) = 1000 g Mol. mass of solute = 60 g density of solution = 1.12 g/ ml From the given data, Mass of solution = 1000 + 120 = 1120 g \[\because \]\[d=\frac{Mol.\,mass}{v}\]or\[V=\frac{Mol.\,mass}{d}\] Volume of solution\[V=\frac{1120}{1.12}=1000ml\]or = 1 litre Now molarity \[(M)=\frac{W}{Mol.\,mass\times V(lit)}=\frac{120}{60\times 1}=2M\]You need to login to perform this action.
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