Which of the following is the net ionic equation for the reaction that occurs when a few drops of HCl are added to a buffer containing a weak base (B) and its conjugate acid (BH+) ? B (aq) + OH - (aq) → BOH - (aq) BH + (aq) + OH - (aq) → H2O (l) + B (aq) H + (aq) + OH - (aq) → H2O (l) H + (aq) + B (aq) → BH + (aq) B (aq) + H2O (l) begin mathsize 12px style rightwards harpoon over leftwards harpoon end style BH + (aq) + OH - (aq)

Question

Chemistry

Zander Small

25 June, 21:38

Which of the following is the net ionic equation for the reaction that occurs when a few drops of HCl are added to a buffer containing a weak base (B) and its conjugate acid (BH+) ? B (aq) + OH - (aq) → BOH - (aq) BH + (aq) + OH - (aq) → H2O (l) + B (aq) H + (aq) + OH - (aq) → H2O (l) H + (aq) + B (aq) → BH + (aq) B (aq) + H2O (l) begin mathsize 12px style rightwards harpoon over leftwards harpoon end style BH + (aq) + OH - (aq)

+3

Answers (1)

Know the Answer?

Katrina Durham · Answer 1

H + (aq) + B (aq) → BH + (aq)

Explanation:

When an acid is added onto a buffer, it is neutralized by the base.

So we pretty much have;

HCl + Weak base

Since HCl completely dissociates in water, it is represented as;

HCl (aq) - -> H + (aq) + Cl - (aq)

The weak base reacts with the H+

So our Net ionic reaction is given as;

H + (aq) + B (aq) → BH + (aq)