Question

How many moles of nitrogen gas are needed to completely react with 6.00 moles of oxygen gas in the following reaction:

2 N2(g) + 3 O2(g) ---> 2 N2O3(g)

Answer 1

The balanced reaction is:

2 N2(g) + 3 O2(g) ---> 2 N2O3(g)

We are given the amount of oxygen used in the reaction. This will be  the starting point of the calculation.

 6.00 mol O2 ( 2 mol N2 / 3 mol O2 ) = 4 mol N2