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This is a course that allows the student with an excellent prior knowledge of chemistry to further develop and advance their understanding in chemistry.
Throughout this course, students will explore the following topics:
Bonding - Ionic, metallic and covalent bonds
Reactions - Redox, precipitation and acid reactions, reactivity of chemicals and solubility of ions.
Quantities - Stoichiometry of solids, liquids and gases, volumetric analysis and gravimetric analysis.
Reactions of Acids and Bases
Reactions of Acids and Bases
During lockdown, students explored chemistry in their kitchens by preparing Wizz Fizz at home and learning about the reaction between citric acid and bicarbonate of soda that makes it fizz. You can try it yourself using this recipe...
Ingredients
0.5 teaspoons citric acid (from the baking section of the supermarket)
4 teaspoons icing sugar
6 teaspoons jelly crystals (if you are vegetarian, please use extra icing sugar instead)
0.5 teaspoons bicarb soda (also known as baking soda or bicarbonate of soda is from the baking section of the supermarket)
Procedure
It is important that you have a clean space to carry out this experiment and follow good hygiene practices.
Use the teaspoon (ensure it is dry) to measure the quantities given into the Ziploc bag.
Ensure the bag is fully sealed and mix the ingredients thoroughly.
Place about ¼ teaspoon of your mixture on your tongue and record your observations related to the taste and the sensation.
Place a small amount of the mixture into a glass of water and record the observations.
Precipitation Reactions
Precipitation Reactions
Students used their understanding of solubility and preciptitation reactions to solve a chemical mystery!
Volumetric Analysis
Volumetric Analysis
Students used titration to determine the concentration of an acid.
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