Summary booklet containing the content needed for 3.9 WJEC A level Chemistry. Useful for learning the content and creating flashcards. Includes - Acid and Base definitions - Calculating pH of strong acids - Kw and the ionic product of water - Calculating pH of strong bases - Reactions of strong acids and strong bases - Weak acids - Reactions of weak acids and strong bases - Half neutralisation point - Buffers - Calculating pH and changes in pH for buffers - Acid-Base titrations - ...