Acid & Bases

• How can pH measures electronically

  Place pH probe into solution and connect it to a pH meter
• Example of pH indicators

  Phenolphthalein
• Neutralisation reaction

  Reaction between an acid and a base in which H+ ions from the acid react with OH- ions from the base
• Which ions do acids form in water

  H+
• Base

  A substance that can neutralise an acid
• Alkali

  Base that dissolves in water to form a pH >7
• What ions do alkali form in water

  OH-