When lime stone CaCO3 is roasted, quick lime CaO and CO2 is produced. Actual yield of CaO is 2.5kg When 4.5kg of limestone is roastedWhat is %age yield of reaction?

To find the percentage yield, first calculate the theoretical yield of CaO that should be produced from 4.5 kg of limestone. The molar mass of CaCO3 is approximately 100.09 g/mol, and the molar mass of CaO is about 56.08 g/mol. From these values, calculate the theoretical yield in grams and then convert it to kilograms. Finally, divide the actual yield (2.5 kg) by the theoretical yield and multiply by 100 to find the percentage yield.