\(n_{Na_2O}=\dfrac{6,2}{62}=0,1mol\\ Na_2O+H_2O\rightarrow2NaOH\\ n_{NaOH}=0,1.2=0,2mol\\ C_{M_X}=C_{M_{NaOH}}=\dfrac{0,2}{2}=0,1M\)
\(n_{Na_2O}=\dfrac{6,2}{62}=0,1\left(mol\right)\)
PT: \(Na_2O+H_2O\rightarrow2NaOH\)
Theo PT: \(n_{NaOH}=2n_{Na_2O}=0,2\left(mol\right)\)
\(\Rightarrow C_{M_{NaOH}}=\dfrac{0,2}{2}=0,1\left(m\right)\)