a, \(n_{CaCO_3}=\dfrac{10}{100}=0,1\left(mol\right)\)
PT: \(CaCO_3\underrightarrow{t^o}CaO+CO_2\)
Theo PT: \(n_{CaO\left(LT\right)}=n_{CaCO_3}=0,1\left(mol\right)\)
\(\Rightarrow m_{CaO\left(LT\right)}=0,1.56=5,6\left(g\right)\)
Mà: H = 80% \(\Rightarrow m=m_{CaO\left(TT\right)}=5,6.80\%=4,48\left(g\right)\)
b, \(n_{Fe}=\dfrac{5,6}{56}=0,1\left(mol\right)\)
PT: \(Fe+2HCl\rightarrow FeCl_2+H_2\)
Theo PT: \(n_{HCl}=2n_{Fe}=0,2\left(mol\right)\)
\(\Rightarrow V_{ddHCl}=\dfrac{0,2}{0,2}=1\left(l\right)=1000\left(ml\right)\)
\(a.n_{CaCO_3}=\dfrac{10}{100}=0,1mol\\ CaCO_3\xrightarrow[t^0]{}CaO+CO_2\\ n_{CaO\left(lt\right)}=n_{CaCO_3}=0,1mol\\ m=m_{CaO\left(tt\right)}=0,1.56.80\%=4,48g\\ b.n_{Fe}=\dfrac{5,6}{56}=0,1mol\\ Fe+2HCl\rightarrow FeCl_2+H_2\\ n_{HCl}=2.0,1=0,2mol\\ V_{ddHCl}=\dfrac{0,2}{0,2}=1l=1000l\)