Ta có: \(n_{CO}=n_{CO_2}=\dfrac{\dfrac{0,448}{22,4}}{2}=0,01\left(mol\right)\)
PTHH: \(CuO+CO\xrightarrow[]{t^o}Cu+CO_2\uparrow\)
\(CO_2+Ca\left(OH\right)_2\rightarrow CaCO_3\downarrow+H_2O\)
Theo PTHH: \(\Sigma n_{CO_2}=0,02\left(mol\right)=n_{CaCO_3}\) \(\Rightarrow m_{CaCO_3}=0,02\cdot100=2\left(g\right)\)
Mặt khác: \(n_{Cu}=n_{CO}=0,01\left(mol\right)\) \(\Rightarrow m_{Cu}=0,01\cdot64=0,64\left(g\right)\)