\(n_{CO_2}=\dfrac{2.24}{22.4}=0.1\left(mol\right)\)
\(CO_2+Ba\left(OH\right)_2\rightarrow BaCO_3+H_2O\)
\(0.1.............0.1\)
\(C_{M_{Ba\left(OH\right)_2}}=\dfrac{0.1}{0.1}=1\left(M\right)\)
\(n_{CO_2}=\dfrac{2,24}{22,4}=0,1(mol)\\ PTHH:CO_2+Ba(OH)_2\to BaCO_3\downarrow+H_2O\\ \Rightarrow n_{Ba(OH)_2}=n_{CO_2}=0,1(mol)\\ \Rightarrow C_{M_{Ba(OH)_2}}=\dfrac{0,1}{0,1}=1M\)