Question

Calculate the weight of lime obtained by heating 200kg of
lime stone

Answer 1

Answer:

106.4

Explanation:

100 kg impure sample has pure CaCO3 = 95 kg

∴ 200 kg impure sample has pure CaCO3

= (95 x 200 / 100) = 190 kg.

CaCO3 →  CaO + CO2

∵ 100 kg CaCO3 gives CaO = 56 kg.

∴ 190 kg CaCO3 gives CaO

= (56 x 190 / 100)

= 106.4 kg

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