What is the pH of a solution made by dissolving 2.81 grams of
calcium fluoride in enough water to make 450 mL of solution? The Ka
for HF is 6.8x10–4.
Write a chemical equation for the hydrolysis reaction that
explains why an aqueous solution of CH3NH3Cl is acidic.
Calculate the pH of a 1.22×10-2 M solution of the
decongestant ephedrine hydrochloride if the pKb of ephedrine (its
conjugate base) is 3.86.