Balance the equation

Question

NH3 + O2 −→ N2 + H2O
Given 4.55 mol of the reactant NH3, determine the corresponding amount of O2.

Answer 1

2NH3 + O2 → N2 + 3H2O

Note that you need 2 moles of NH3 for each mole of O2

So, you'd need 2.275 mol of O2