The combustion of ammonia in the presence of excess oxygen y…

The cоmbustiоn оf аmmoniа in the presence of excess oxygen yields NO2 аnd H2O: 4 NH3 (g)  +  7 O2 (g)  →   4 NO2 (g)  +  6 H2O (g) The combustion of 43.9 grams of ammonia produces how many grams of NO2? (Molar masses: NH3 = 17.04 g/mol, NO2 = 46.01 g/mol, and H2O = 18.02 g/mol)