The % yield is calculated as using the below formula
actual yield/theoretical yield x100 actual yield = 6.81
the theoretical yield is calculated as follows
find the moles of CaCO3 moles = mass/molar mass = 20.7g/100g/mol = 0.207 moles CaCO3 = CaO + CO2 by use of mole ratio between CaCO3 to CaO which is 1:1 the theoretical moles of CaO is therefore = 0.207 the theoretical mass is therefore = theoretical moles x molar mass of CaO = 0.207 x 56 = 11. 59 g
