What is the pH of a solution that is 0.255 M in hypochlorous acid (HClO) and 0.333 M in sodium hypochlorite? The Ka of hypochlorous acid is 3.8 × 10-8.

Determine the Kb for CN⁻ at 25°C. The Ka for HCN is 4.9 × 10-10.

Calculate the pOH in an aqueous solution with a pH of 7.85 at 25°C.

Which of the following salts is the most soluble in water? i) AgBr, Ksp = 5.4 x 10-13 ii) AgCl, Ksp = 1.8 x 10-10 iii) AgSCN, Ksp = 1 x 10-12 iv) AgI, Ksp = 8.5 x 10-17

Which of the following is a weak acid? i) HBr ii) NaBr iii) HBrO4 iv) HBrO

A buffer is a solution

An aqueous solution at 25.0°C contains = 0.090 M. What is the pOH of the solution?

What is the hydronium ion concentration of an acid solution that has a pH of 5.5?

A pH = 3.46 is determined for a buffer containing 0.032 M HF and 0.032 M KF.  What is the pKa of HF?

Identify the base able to deliver two hydroxide ions in water. i) H2S ii) Sr(OH)2 iii) Fe(OH)3 iv) Al(OH)4