14.21—How to use a weak acid-strong base or strong acid-weak base titration curve to: i demonstrate buffer action ii determine Ka

Understand how to use a weak acid-strong base or strong acid-weak base titration curve to: i demonstrate buffer action ii determine Ka from the pH at the point where half the acid is neutralised/ equivalence point.

Use —how to use a weak acid-strong base or strong acid-weak base titration curve to: i demonstrate buffer action ii determine ka to connect the rule to the data and decision in the question.

This matters because —how to use a weak acid-strong base or strong acid-weak base titration curve to: i demonstrate buffer action ii determine ka determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —how to use a weak acid-strong base or strong acid-weak base titration curve to: i demonstrate buffer action ii determine ka to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —How to use a weak acid-strong base or strong acid-weak base titration curve to: i demonstrate buffer action ii determine Ka is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.