\(m_{CaO\left(lt\right)}=\dfrac{94,08}{80\%}\cdot100\%=117,6kg\\ CaCO_3\xrightarrow[]{t^0}CaO+CO_2\\ \Rightarrow\dfrac{m_{CaCO_3}}{100}=\dfrac{117,6}{56}\\ \Rightarrow m_{CaCO_3}=210kg\\ \%m_{CaCO_3\left(trong.đá.vôi\right)}=\dfrac{210}{280}\cdot100\%=75\%\)
PT: \(CaCO_3\underrightarrow{t^o}CaO+CO_2\)
Ta có: \(n_{CaO}=\dfrac{94,08}{56}=1,68\left(kmol\right)\)
Theo PT: \(n_{CaCO_3\left(LT\right)}=n_{CaO}=1,68\left(kmol\right)\)
Mà: H = 80%
\(\Rightarrow n_{CaCO_3\left(TT\right)}=\dfrac{1,68}{80\%}=2,1\left(mol\right)\)
\(\Rightarrow m_{CaCO_3\left(TT\right)}=2,1.100=210\left(kg\right)\)
\(\Rightarrow\%CaCO_3=\dfrac{210}{280}.100\%=75\%\)
