What is the theoretical yield of NO2 ? I.E., how many grams of NO2 should be formed?

Question

Nitric oxide, NO, reacts instantly with oxygen gas to give nitrogen dioxide, NO2, a dark brown gas.
In one experiment 16.81 g of NO is mixed with 10.55 g of O2.


What is the theoretical yield of NO2 ? I.E., how many grams of NO2 should be formed?

Answer 1

Molar mass of NO = 14+16 = 30 g

Moles of NO = 0.56

Moles of O2 = 10.55/32 = 0.33

NO + 1/2 O2 -> NO2

NO is the limiting reagent, thus 0.56 mol of NO2 will be formed

grams of NO2 = 46*0.56 = 25.76 g