Question

I’ve been having a hard time with percents in chemistry, could anyone help?

Question: The percentage of nitrogen, by mass, in copper(II) nitrate, Cu(NO3)2, is….
1) 14.9%
2) 33.9%
3) 36.5%
4) 40.2 %
5) 45.1%

Answer 1

Step-by-step explanation:

3) 36.5%

The percentage of nitrogen, by mass, in copper(II) nitrate, Cu(NO3)2, is 36.5%