eonichelle1206 eonichelle1206

21-03-2021
Chemistry

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A 20 mL sample of human urine was found to have 10 mg of
urea during analysis. The molar mass of urea is 60.1 g/mol.
Calculate the molarity of urea in the given sample.

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21-03-2021

0.008
Molarity=
Mw
2

×V
sol

(in mL)
W
2

×1000

⟹W
2

=5 mg =5×10
−3
g
∴M=
60×10
5×10
−3
×10
3

=0.008

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