Fe+2HCl →FeCl2 +H2
CuO+HCl → CuCl2 +H2O
+nH2=\(\dfrac{4,48}{22,4}=0,2\left(mol\right)\)
+nFe=nH2=0,2(mol)
+mFe=0,2.56=11,2(gam)
+mCuO=mA-mFe=19,2-11,2=8(gam)
\(Fe + 2HCl \to FeCl_2 + H_2\\ CuO + 2HCl \to CuCl_2 + H_2O\\ n_{Fe} =n_{H_2} =\dfrac{4,48}{22,4} = 0,2(mol)\\ m_{Fe} = 0,2.56 = 11,2(gam)\\ \Rightarrow m_{CuO} = 19,2 -11,2 = 8(gam)\)