February 2025

Experiment: Investigating the neutralisation process

By |2025-02-12T09:10:28+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

ZIMSEC O Level Combined Science Notes: Experiment: Investigating the neutralisation process

Aim: To find out what happens to the pH of an acid when a base is added

Materials: vinegar, plastic beaker, measuring cylinder, stirring rod, spatula/plastic teaspoon, slaked lime (calcium hydroxide), universal indicator paper

Method

  1. Place about 10 cm3 of vinegar in a beaker
  2. Dilute it with an equal volume of water
  3. Remove […]
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Experiment: Making salt:copper sulphate

By |2025-02-12T09:11:09+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

ZIMSEC O Level Combined Science Notes: Experiment: Making salt:copper sulphate

Materials: Making a salt, copper sulphate

Materials: copper oxide, dilute sulphuric acid, plastic beaker, evaporating dish, filter funnel, filter paper, stirring rod, spatula/plastic teaspoon

Making copper sulphate Making copper sulphate

Method

  1. Pour 20cm3 dilute sulphuric acid into a beaker
  2. Add a small spatula load of copper oxide and […]
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