a) \(n_{HNO_3}=0,02\left(mol\right)\Rightarrow n_{H^+}=0,02\left(mol\right);n_{NO_3^-}=0,02\left(mol\right)\)
\(n_{H_2SO_4}=0,01\left(mol\right)\Rightarrow n_{H^+}=0,02\left(mol\right);n_{SO_4^{2-}}=0,01\left(mol\right)\)
b) \(\Rightarrow\Sigma n_{H^+}\left(A\right)=0,02+0,02=0,04\left(mol\right)\)
PT ion RG: \(H^++OH^-\rightarrow H_2O\)
\(\Rightarrow n_{OH^-}=0,04\left(mol\right)=n_{NaOH}\)
\(\Rightarrow V_{NaOH}=\dfrac{0,1}{0,04}=2,5\left(l\right)=250\left(ml\right)\)