Boric acid frequently is used as an eyewash to treat eye infections. The pH of a 0.050 M solution of boric acid is 5.28. What is the value of the boric acid ionization constant, Ka?

The pKa values of four acids are as follows. (W 4.87; X 4.82; Y 4.86; Z 4.85). What is the correct order when these acids are arranged in order of increasing acid strength?

What is the conjugate base of the HSO4 – (aq) ion?

The first disinfectant used by Joseph Lister was called carbolic acid. This substance now is known as phenol, C6H5OH (pKa = 10.0). What is the pH of a 0.10 M solution of phenol?

A solution with an [OH– ] concentration of 1.20 × 10–7 M has a pOH and pH of __________

If the pH of a solution increases by 2 units (e.g., from 1 to 3), then the ratio of the new to the original hydronium ion concentration is __________

A solution with pH of 9.50 has a pOH of __________

The pH of a solution is 2. If its pH is increased to 6, how many times greater is the [H+ ] of the original solution?

What is the pH of a 0.010 M solution of acetic acid? Ka for acetic acid is 1.8 × 10–5

The indicator bromophenol blue, HIn(aq), has a form that is yellow and an In– (aq) form that is blue. Write an equation to show how bromophenol blue acts as an indicator.

In the following reaction in aqueous solution CH3COOH + NH3 = CH3COO- + NH4+, the acid reactant is __________ and its conjugate base product is __________.

Suggest one method, other than measuring pH, which could be used to distinguish between solutions of a strong acid and a weak acid of the same concentration. State the expected results.