Ta có: \(n_{H_2SO_4}=0,1.0,5=0,05\left(mol\right)\)
\(n_{HNO_3}=0,1.0,1=0,01\left(mol\right)\)
\(\Rightarrow n_{H^+}=0,05.2+0,01=0,11\left(mol\right)\)
Có: \(n_{OH^-}=n_{NaOH}+n_{KOH}=V_{ddA}.1+V_{ddA}.0,5=1,5V_{ddA}\)
PT ion: \(H^++OH^-\rightarrow H_2O\)
\(\Rightarrow1,5V_{ddA}=0,11\) \(\Rightarrow V_{ddA}=\dfrac{11}{150}\left(l\right)\)
Ta có: \(m_m=m_{Na^+}+m_{K^+}+m_{SO_4^{2-}}+m_{NO_3^-}=\dfrac{11}{150}.23+\dfrac{11}{150}.0,5.39+0,05.96+0,01.62\approx8,54\left(g\right)\)