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

1 Answer
BRIAN M.
May 23, 2016

The Formula #Fe(NO_3)_3# has a formula mass of 208.92 g/mol

Explanation:

The Formula #Fe(NO_3)_3# has

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 #Fe(NO_3)_3# has a formula mass of 208.92 g/mol

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