I am doing an acid and magnesium reaction for my A2 coursework, and wanted to use a catalyst to lower the activation energy. What would I use?
• I am planning my A-level coursework on finding the alcohol content in a range of wines and investigating how the level of volatile acids changes with alcohol content and the age of the sample. I was planning on distilling the wines then using a hydrometer to get the alcohol content. Firstly is this the best method for this or is it too simple for the coursework? Secondly what is the best method for measuring the volatile acid content in a sample? I’ve read about the ‘cash still’ method but I don’t really understand it. Could you suggest a reasonably simple but accurate method for this? 220908 • Igloo gave this answer to a question: …… “but what if citric acid itself reacts with DCPIP? This is why it is conventional to carry out what is known as a control experiment, i.e. a titration with citric acid alone, so that the titre obtained can be subtracted from all the other titration readings.” My question is how would you perform a control experiment? I don’t understand it when you t
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- I have been looking at the reaction of metals with acid and have experimentally determined the activation energy of the reaction between magnesium and hydrochloric acid, using the Arrhenius equation. Why did we used 1/time to produce 30 cm3 of gas as the ate ?
- For my chemistry coursework I am doing metal/acid and activation energy. If I use a gas syringe for both experiments will I lose marks for not showing more practical skills?
- I am doing an acid and magnesium reaction for my A2 coursework, and wanted to use a catalyst to lower the activation energy. What would I use?
