The amount of calcium oxide produced on heating 150 kg limestone ( $75 \%$ pure) is ______ kg. (Nearest integer)
Given : Molar mass (in $\mathrm{g} \mathrm{mol}^{-1}$) of Ca-40, O-16, C-12

Question

The amount of calcium oxide produced on heating 150 kg limestone ( $75 \%$ pure) is ______ kg. (Nearest integer) Given : Molar mass (in $\mathrm{g} \mathrm{mol}^{-1}$) of Ca-40, O-16, C-12

Aicharya · Accepted Answer

$\begin{aligned} & \mathrm{CaCO}_3 ightarrow \mathrm{CaO}+\mathrm{CO}_2 \ & 	ext { mass of } \mathrm{CaCO}_3=\frac{150 	imes 75}{100}=112.5 \mathrm{~kg} \ & =112500 \mathrm{~g} \ & \mathrm{n}_{\mathrm{CaCO}_3}=1125 \ & \mathrm{So} 	ext { moles of } \mathrm{CaO}=1125 \ & \quad 	ext { mass of } \mathrm{CaO}=\frac{1125 	imes 56}{1000}=63 \mathrm{~kg} \ & 	ext { Correct answer } \Rightarrow 63\end{aligned}$

The amount of calcium oxide produced on heating 150 kg limestone ( $75 \%$ pure) is ______ kg. (Nearest…

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