What would happen to species concentrations if sm amt of nitric acid added to following buffer solution?

Question

HB(aq) + H2O(l) <----> H3O(aq) + B(aq) what would happen to all four species concentrations?

HB increase or decrease

H2O increase or decrease

H3O increase or decrease

B increase or decrease

Answer 1

B- + H3O+ &gt;&gt; HB + H2O

B decreases

HB increases

H+ decreases

H2O increases