Answer to Question #68674 in Physical Chemistry for sam

Question #68674
The molarity of urea in a solution prepared by dissolving 16 g of urea (MW = 60.0 g/mol) in 39 g of H2O is __________ M. The density of the solution is 1.3 g/mL.

A. 3.7
B. 0.11
C. 6.3
D. 6.8
1
Expert's answer
2017-06-05T08:29:09-0400
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Comments

Assignment Expert
26.06.18, 14:37

Dear Leseho thank you

Leseho
26.06.18, 13:57

M=m/v m=16+39=55g M=1.3 1.3=55/V V=42.31ml=0.042litre M=moles of solute/volume of solution in litres =(16/60)/42.31 =6.3M

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