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The molality of a urea solution in which...

The molality of a urea solution in which 0.0100 g of urea, `[(NH_2)_2 CO]` is added to `0.3000 dm_3` of water at S.T.P. is:

A

`0.555m`

B

`5.55 xx 10^(-4)m`

C

`33.3 m`

D

`3.33 xx 10^(-2)m`

Text Solution

Verified by Experts

The correct Answer is:
B
`m = (n)/(WCkg) = (0.01//60)/(0.3kg) = 5.55 xx 10^(-4) mol//kg`
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