# What is the formula mass for the following compound #Fe(NO_3)_3#?

##### 1 Answer

May 23, 2016

#### Answer:

The Formula

#### Explanation:

The Formula

1 atom Fe = 1 x 55.85 = 55.85

3 atoms N = 3 x 14.01 = 42.03

9 atoms of O = 9 x 15.99 = 143.91

55.85 + 42.03 + 143.91 = 208.92

The Formula