Open Question: Using Le Chatelier's principle, explain the effect of the presence of a salt of HB+ on the ionization of B?

If you increase the presence of product into any system at equilibrium it will shift the equilibrium to the left or towards the reactant side.

In the case of your question....if you were to add HB+ to the system the equilibrium would shift left (or towards the reactants) which will decrease the ionization of B.

Or if you were to take B out (which isn't really a possibility) then again the equilibrium would be shifted to the left or towards the reactant side.

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