How do you find percentage yield of calcium oxide?
A modern gas-fuelled lime kiln produces 500kg of calcium oxide, (CaO quicklime), from 1000kg of crushed calcium carbonate, CaCo3 (limestone). What is the percentage yield of calcium oxide?
Sorry, I meant CaCO3
CaCO3(s) –> CaO(s) + CO2(g)
First determine theoretical yield:
1000kg(1000g/1kg)(1mol/100.09g)(1mol CaO/1mol CaCO3)(56.08g/1mol) = 560296g = 560kg
percent yield = 500kg/560kg x 100 = 89%
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