\(n_{CuO}=\frac{16}{80}=0,2\left(mol\right)\)
\(m_{H_2SO_4}=\frac{200.19,6}{100}=39,2\left(g\right)\) => \(n_{H_2SO_4}=\frac{39,2}{98}=0,4\left(mol\right)\)
PTHH: \(CuO+H_2SO_4\rightarrow CuSO_4+H_2O\)
_______0,2------>0,2---------->0,2____________(mol)
=> \(\left\{{}\begin{matrix}m_{CuSO_4}=0,2.160=32\left(g\right)\\m_{H_2SO_4\left(dư\right)}=\left(0,4-0,2\right).98=19,6\left(g\right)\end{matrix}\right.\)
=> \(\left\{{}\begin{matrix}C\%\left(CuSO_4\right)=\frac{32}{16+200}.100\%=14,8\%\\C\%\left(H_2SO_4\right)=\frac{19,6}{16+200}.100\%=9,07\%\end{matrix}\right.\)