Tag: exam
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Redox – Iron Tablet Titration (Improved)
Iron tablet titration is a common laboratory method used to determine the amount of iron present in a sample, such as an iron supplement tablet. This method involves reacting the iron in the tablet with a solution of potassium permanganate (KMnO4) to produce a purple colour. The endpoint of the titration is reached when the…
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Revision tips – how to ace your exams!
Practical advice on how to structure your revision and prepare for your exams: When preparing for exams, it is important to have a structured approach to your revision. Here are some tips to help you prepare
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How to score full marks in the conclusion evaluation section of the IBDP science IA, specifically dealing with error analysis.
In the conclusion and evaluation section of your IBDP Chemistry IA, you should summarize the results of your experiment and discuss the overall findings. This section should also include an analysis of any errors that may have occurred during your experiment and ways to improve the experiment in the future. Here is a guide to…
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Esterification Reaction and equilibrium constant determination.
Esterification is a common organic reaction that involves the reaction of a carboxylic acid with an alcohol to form an ester and water. In this experiment, we will be carrying out an esterification reaction to test the equilibrium position at different temperatures using ethanoic acid and ethanol. Safety precautions: • Wear personal protective equipment (PPE)…
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The Winkler Method – Biological Oxygen Demand BOD
The Winkler method is a widely used analytical technique for determining the amount of dissolved oxygen in water samples. Dissolved oxygen is essential for aquatic life and is an important indicator of water quality. The Winkler method involves the addition of reagents to a water sample that react with dissolved oxygen to produce a measurable…
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