What is the equilibrium equations that result when solid NH4F is dissolved in sufficient water to produce 5.0 mL of 0.5M NH4F solution?

How would the addition of 5 drops of 0.1M HCl affect the equilibrium system. Give an explanation.

How would the addition of 5 drops of NaOH affect the equilibrium system? Give an explanation.

1 answer

NH4F + 2H2O ==> NH3(aq) + HF(aq)
Addition of HCl; most of the H^+ is used up by the NH3 to form NH4^+.
Addition of NaOH; mot of the OH^- is used up by the HF.