Chemistryhard · Past Paper
What is the percentage of carbon in a molecule of Urea [CO(NH2)2]?
A10%
B20%
C30%
D40%
✓ Correct Answer: B — 20%
Molar mass of Urea = 12 + 16 + (14+2)*2 = 60. %C = (12/60)*100 = 20%.
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