The production capacity for acrylonitrile (C3H3N) in the United States is over 2

Question

The production capacity for acrylonitrile (C3H3N) in the United States is over 2 billion pounds per year. Acrylonitrile, the building block for polyacrylonitrile fibers and a variety of plastics, is produced from a gaseous propylene, ammonia, and oxygen:

2 C3H6(g) + 2NH3(g) + 3 O2(g) 2C3H3N(g) + 6H2O(g)
calculate the mass
Calculate the mass (in grams) of each rectant after the reaction is complete:

Explanation / Answer

Moles C3H6 = 1110 g / 42 = 26.4 Moles ammonia = 1500 g / 17 = 88.2 Moles O2 = 2830 g / 32 = 88.4 Ammonia is in excess and C3H6 is the limiting reactant we get 26.4 x 6 / 2 = 79.2 moles water =>1425.6 g Moles NH3 in excess = 88.2 - 26.4 = 61.8 =>1050.6 g Moles O2 needed = 26.4 x 3 / 2 = 39.6 Moles O2 in excess = 88.4 - 39.6 = 48.8 =>1561.6 g

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