Question

What is the mass percent of nitrogen in ammonium carbonate, (NH4)2CO3?

Answer 1

29.16%.

Step-by-step explanation:

You can determine the mass percent, or how much of the total mass of ammonium carbonate is nitrogen, by first determining the mass of nitrogen and the mass of the total compound.

1. the mass of nitrogen in this compound is 2 x 14.007, or 28.014.

2. the mass of ammonium carbonate is 96.09 grams.

To find the percentage of nitrogen in the overall mass of ammonium carbonate, simply divide the mass of nitrogen by the mass of ammonium carbonate and multiply by 100:

28.014/96.09 x 100 ....................... 29.16%.

Also, I got the correct answer :)

Answer 2

In order for you to calculate for the mass of ammonium carbonate, you need to know the molar mass of it and the nitrogen atoms in the compound. Ammonium carbonate has a molar mass of 96.08 grams per mole. There are two nitrogen atoms in ammonium carbonate which is equal to 28.02 grams per mole. Divide the molar mass of nitrogen to the ammonium carbonate, 28.02/96.08 x 100, we get 29.16wt% nitrogen.