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Calculate the weight of lime (CaO) obtai...

Calculate the weight of lime (CaO) obtained by heating 200 kg of 95% pure lime stone `(CaCO_(3)).`

A

104.4 kg

B

105.4 kg

C

212.8 kg

D

106.4 kg

Text Solution

Verified by Experts

The correct Answer is:
d
100 kg impure sample has pure
`CaCO_(3)=95 kg`
`therefore` 200 kg impure sample has pure `CaCO_(3)`
`=(95 times 200)/100=190kg." "CaCO_(3)rarr CaO+CO_(2)`
100 kg `CaCO_(3)` gives CaO = 56 kg.
`therefore 190 kg" "CaCO_(3)` gives CaO`=(56 times 190)/100=106.4 kg`.
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