How acidic? How basic?
Part 2 — measuring acidity with the pH scale, why pH matters in your body, your mouth and your fields, and what salts are.
In this lesson you will
- Compare the strength of acids and bases using pH values
- Use universal indicator colours to place solutions on the pH scale
- Explain the role of pH in digestion, tooth decay, soil, acid rain and stings
- Name the parent acid and base of a salt and predict the pH of its solution
- Explain water of crystallisation using copper sulphate and gypsum