# How would you determine the number of moles of #N_2# that are required to produce 12 mol of #NH_3# using the equation: #N_2+ 3H_2 -> 2NH_3#?

##### 2 Answers

Use the mole ratio of

#### Explanation:

There is no coefficient in front of the

There is a 2 coefficient in front of the

This is a 1:2 or 2:1 ratio. Since the desired outcome is

You need 6 moles of

#### Explanation:

The coefficients in a chemical reaction give the molar ratios of reactants and products in that reaction. You can read the above reaction (The Haber process) as saying "For every 1 mol of