Question

5) How many moles of nitrogen atoms are combined with 6.79 mol of oxygen atoms in dinitrogen pentoxide?

Answer 1

First, we write our reaction:

2N2 + 5O2 → 2N2O5 (balanced)

Procedure:

2 x 1 mole N2 -------- 5 x 1 mole O2

X ---------6.79 moles O2

X = 2.72 moles N2

Answer: 2.72 moles N2