Dissolving 120g of urea (molar mass 60gmol−1) in 1000g of water gave a solution of density 1.15g/ml. The molarity of the solution is :
A
1.78 M
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B
2.00 M
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C
2.30 M
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D
2.22 M
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Solution
The correct option is C 2.30 M Mass of solute =120g Mass of water =1000g Mass of solution =1120g Volume of solution (md)=10001.15ml=11.15L M=1206011.15=2.30M