Ta có: \(n_{CaCl_2}=0,05.0,2=0,01\left(mol\right)\)
PT: \(CaCl_2+2AgNO_3\rightarrow Ca\left(NO_3\right)_2+2AgCl\)
Theo PT: \(n_{Ca\left(NO_3\right)_2}=n_{CaCl_2}=0,01\left(mol\right)\)
\(\Rightarrow C_{M_{Ca\left(NO_3\right)_2}}=\dfrac{0,01}{0,05+0,1}=\dfrac{1}{15}\left(M\right)\)