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2014-05-12T22:17:19+03:00
CaCO3 ---> CaO + CO2
CaO + H2O ---> Ca(OH)2
Puritatea=masa pura/masa impura * 100
masa pura Ca(OH)2 = 60*86/100 = 51,6 kg
56 g CaO......74 g Ca(OH)2
x kg CaO..........51,6 kg Ca(OH)2      x = 39,049 kg 
100 g CaCO3.........56 g CaO
y kg CaCO3........39,049 kg        y = 69.73 kg
masa impura CaCO3 = 69,73/95 * 100 = 73,4 kg