\(Na_2CO_3+2HCl\rightarrow2NaCl+CO_2+H_2O\)
x___________________ x______________
0,1_______________0,2______________mol
\(NaHCO_3+HCl\rightarrow NaCl+CO_2+H_2O\)
y____________________ y_________________
0,1___________________0,1__________ mol
\(n_{CO2}=0,2\left(mol\right)\)
\(\Rightarrow\left\{{}\begin{matrix}106x+84y=0\\x+y=0,2\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}x=0,1\\y=0,1\end{matrix}\right.\)
\(m_{Na2CO3}=0,1.106=10,6\left(g\right)\)
\(m_{NaHCO3}=19-10,6=8,4\left(g\right)\)
Na2CO3+2HCl=>2NaCl+CO2↑+H2O
x------------------------------ =>x
NaHCO3+HCl=>NaCl+CO2↑+H2O
y --------------------------=>y
0,1mol=>0,1mol
nCO2=0,2mol
|106x+84y=19
x+y=0,2⇔{x=0,1y=0,1
mNa2CO3=0,1×106=10,6g
%Na2CO3=10,6×10019=56%
%NaHCO3=100−56=44%
