Understandings● pH = –log[H+(aq)] and [H+] = 10–pH.
● A change of one pH unit represents a 10-fold change in the hydrogen ion concentration [H+]. Guidance Knowing the temperature dependence of Kw is not required. ● pH values distinguish between acidic, neutral, and alkaline solutions. ● The ionic product constant, Kw = [H+][OH–] = 10–14 at 298 K. |
Applications and skills● Solving problems involving pH, [H+], and [OH–].
Guidance ● Students should be concerned only with strong acids and bases in this sub-topic. ● Students will not be assessed on pOH values. ● Students should be familiar with the use of a pH meter and universal indicator. |