# Question #e621d

Jun 15, 2017

${M}_{r} = 35$

#### Explanation:

Nitrogen has a relative atomic mass of 14. Oxygen has a relative atomic mass of 16. Hydrogen has a relative atomic mass of 1.

Therefore:

$14 + \left(5 \cdot 1\right) + 16 = 35$

${M}_{r} = 35$