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Dissolving `120g` of urea `(Mw = 60)` in `1000 g` of water gave a solution of density `1.15 g mL^(-1)`. The molarity of solution is:A. 1.78 MB. 2.00 MC. 2.05 MD. 2.22 M |
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Answer» Correct Answer - C `m=(1000M)/(1000d-MMw)` `(120)/(60)xx(1000)/(1000)=(1000M)/(1000xx1.5-M(60))` `2.30xx1000-120M=1000M` `M=(2.30xx1000)/(1120)=2.05` |
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