ISSUE:

In the preparation of tert-butyl chloride, NaHCO3 is added to remove excess HCl, according to the following reaction:

NaHCO3 + HCl -> CO2 + H2O + NaCl

I have found the following mechanism: myweb.liu.edu/~swatson/ downloads/files/Experiment_3.pdf (Figure 3.3), but I don't really understand it. I think it's wrong. Could you help me?

Something is wrong, the Na+ should form with the Cl- ClNa