a) \(m_{CO_2}=1-0,78=0,22\left(tấn\right)\)
=> \(n_{CO_2}=\dfrac{0,22.10^6}{44}=5000\left(mol\right)\)
PTHH: CaCO3 --to--> CaO + CO2
5000<-------5000<--5000
\(\Rightarrow m_{CaO}=5000.56=280000\left(g\right)\)
b) \(m_{CaCO_3\left(pư\right)}=5000.100=500000\left(g\right)\)
\(m_{CaCO_3\left(bđ\right)}=1.80\%=0,8\left(tấn\right)=800000\left(g\right)\)
=> \(H=\dfrac{500000}{800000}.100\%=62,5\%\)