# Chemistry

Ammonia is produced by the reaction of hydrogen and nitrogen.
N2(g)+3H2(g)→2NH3(g)ammonia

How many moles of N2 reacted if 0.65mole NH3 is produced?

How many moles of NH3 are produced when 1.2moles H2 reacts?

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1. Remember that you can convert any material in mols in the equation to any other material in mols by using the coefficients in the balanced equation.
0.65 mole NH3 x (1 mol N2/2 mol NH3) = 0.65 x 1/2 = 0.325 mols N2 reacted and I know that's too many s.f.
Important: Note here that this is the same kind of conversion as with the mols and molecules.
a number x conversion factor. The only difference in the two set of problems is that the conversion factor in this problem is made up of the coefficients in the balanced equation while in the mole/atoms problems it was made up of the unit factor.

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