Ko có NaCO đâu nha , chỉ có Na2CO3
a. \(n_{Na_2CO_3}=\dfrac{113,1.15\%}{106}\approx0,16\left(mol\right)\)
\(Na_2CO_3+2HCl\rightarrow2NaCl+H_2O+CO_2\)
0,16 0,32 0,32 0,16 0,16
b. \(m_{HCl}=0,32.36,5=11,68\left(g\right)\)
\(\Rightarrow m_{dd_{HCl}}=\dfrac{11,68}{14\%}.100\%=83,4\left(g\right)\)
\(m_{H_2O}=0,16.18=2,88\left(g\right)\)
\(m_{CO_2}=0,16.44=7,04\left(g\right)\)
c.
\(m_{ddspu}=113,1+83,4-\left(7,04+2,88\right)=186,58\left(g\right)\)
\(C\%=\dfrac{0,32.58,5}{186,58}.100=10,03\%\)