The molecular weight of urea ((NH₂)₂CO),a compound used as a nitrogen fertilizer,is ________ amu (rounded to one decimal place).

Question

Quizplus · Accepted Answer

To calculate the molecular weight of urea, we need to add the atomic weights of all the atoms present in the compound. The atomic weights of each atom are: N-14.01, H-1.01, C-12.01, and O-16.00.

Then the molecular weight of urea = 2 x N + 4 x H + C + 2 x O

= 2 x 14.01 + 4 x 1.01 + 12.01 + 2 x 16.00

= 60.06 amu

Rounding to one decimal place gives us a molecular weight of 60.1 amu. Therefore, the correct answer is C.

The Molecular Weight of Urea ((NH2)2CO),a Compound Used as a Nitrogen

The Molecular Weight of Urea ((NH₂)₂CO),a Compound Used as a Nitrogen