For the equation:

NH4NO3 ==> N2O + 2H2O

how would I find how many grams of N2O are formed if 0.46mol NH4NO3?

Would I start out with
0.46mol NH4NO3 * ( / )

1 answer

0.46 mol NH4NO3 * 1 mol N2O/1 mol NH4NO3
= 0.46 mol N2O
0.46 mol N2O * 43.99 g N2O/1 mol N2O
= 20.24 g N2O