🤓 Based on our data, we think this question is relevant for Professor Mahoney's class at UNR.

Mass percent:

$\overline{){\mathbf{\%}}{\mathbf{mass}}{\mathbf{}}{\mathbf{N}}{\mathbf{=}}\frac{\mathbf{mass}\mathbf{}\mathbf{N}\mathbf{}\mathbf{in}\mathbf{}\mathbf{Ca}{\mathbf{\left(}{\mathbf{NO}}_{\mathbf{3}}\mathbf{\right)}}_{\mathbf{2}}}{\mathbf{molar}\mathbf{}\mathbf{mass}\mathbf{}\mathbf{Ca}{\mathbf{\left(}{\mathbf{NO}}_{\mathbf{3}}\mathbf{\right)}}_{\mathbf{2}}}{\mathbf{\times}}{\mathbf{100}}}$

- Molar mass Ca(NO
_{3})_{2}= 164.09 g/mol

What is the percentage of nitrogen, by mass, in calcium nitrate?

a) 8.54%

b) 13.7%

c) 17.1%

d) 24.2%

e) 82.9%

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Based on our data, we think this problem is relevant for Professor Mahoney's class at UNR.