BTKL:\(\Rightarrow mO_2=2,56\Rightarrow nO_2=0,08\)\(\Rightarrow n_{O\left(Oxit\right)}=0,32\)
Tư duy: \(\left\{{}\begin{matrix}kl+H^+\rightarrow H_2\\O_{Oxit}+H^+\rightarrow H_2O\end{matrix}\right.\)
\(\left\{{}\begin{matrix}2H^+\rightarrow H_2\\0,28\leftarrow0,14\\O^{2-}+2H^+\rightarrow H_2O\\0,16\rightarrow0,32\end{matrix}\right.\)\(\Rightarrow\Sigma_{H^+}=0,32+0,28=0,6\)
\(\Rightarrow n_{H^+}=n_{Cl^-}=n_{HCl}=0,6\)
Nên klượng muối khan bằng với\(m_{kl}+m_{Cl^-}=12+0,6.35,5=33,3\)
mình sory cái, \(n_{O\left(oxit\right)}=0,08.2=0,16\)