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Dissolving 120g of urea (mol wt = 60) in...

Dissolving `120g` of urea (mol wt `= 60)` in 1000g of water gave a solution of density 1.15 g/mL. The molarity of the solution is

A

1.78 M

B

2.00 M

C

2.05M

D

2.22M

Text Solution

Verified by Experts

The correct Answer is:
C
Total mass of solution `= 1000+120 = 1120g`
Volume of solution `= (1120)/(1.15) = 973.9`
Molarity `= (120//60)/(973.9) xx 1000 = 2.05 M`
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