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Mass of CaO obtained by hearing 20kg of 90% pure lime stone

Asked by 21st March 2013, 10:28 AM
Answered by Expert
Answer:

The relevant equation is

CaCO3 = CaO + CO2

100 g 56 g 44g

Lime stone contains 95% CaCO3

200 kg of limestone contains= 95 x 200/100 = 190Kg CaCO3

100 g of limestone on heating gives = 56 g CaO

190 kg gives= 56 x 190 x 103 /100 = 106400g of CaO or 106.4 kg of CaO

Answered by Expert 23rd April 2013, 12:10 PM
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