PTHH: \(H_2SO_4+Ba\left(NO_3\right)_2\rightarrow2HNO_3+BaSO_4\downarrow\)
Ta có: \(\left\{{}\begin{matrix}n_{H_2SO_4}=0,1\cdot2=0,2\left(mol\right)\\n_{Ba\left(NO_3\right)_2}=0,1\cdot1=0,1\left(mol\right)\end{matrix}\right.\) \(\Rightarrow\) H2SO4 còn dư
\(\Rightarrow\left\{{}\begin{matrix}n_{HNO_3}=0,2\left(mol\right)\\n_{H_2SO_4\left(dư\right)}=0,1\left(mol\right)\end{matrix}\right.\) \(\Rightarrow\left\{{}\begin{matrix}C_{M_{HNO_3}}=\dfrac{0,2}{0,2}=1\left(M\right)\\C_{M_{H_2SO_4\left(dư\right)}}=\dfrac{0,1}{0,2}=0,5\left(M\right)\end{matrix}\right.\)