\(Na_2CO_3+2HCl\rightarrow2NaCl+CO_2+H_2O\)
\(NaHCO_3+HCl\rightarrow NaCl+CO_2+H_2O\)
Gọi \(\left\{{}\begin{matrix}n_{Na2CO3}=x\left(mol\right)\\n_{NaHCO3}:y\left(mol\right)\end{matrix}\right.\)
Giải hệ PT:
\(\left\{{}\begin{matrix}106a+84b=19\\a+b=0,2\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}a=0,1\\b=0,1\end{matrix}\right.\)
\(\Rightarrow\left\{{}\begin{matrix}m_{Na2CO3}=10,6\left(g\right)\\m_{NaHCO3}=8,4\left(g\right)\end{matrix}\right.\)