420 kg ...................... 100% impur
m ............................... 70% pur
= 294 kg Ca pur
294 kg n kmoli
2Ca + O2 --> 2CaO
2x40 2
=> n = 294x2/2x40 = 7,35 kmoli CaO
7,35 kmoli m kg
CaO + CO2 --> CaCO3
1 100
=> m = 7,35x100/1 = 735 kg CaCO3 pur
