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Making Copper Sulphate

Making Copper Sulphate. Recap questions, answer in full sentences in your book What is the formula for Copper Oxide? What is the formula of Copper sulphate ? What colour is a solution of Copper Sulphate ?.

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Making Copper Sulphate

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  1. Making Copper Sulphate Recap questions, answer in full sentences in your book What is the formula for Copper Oxide? What is the formula of Copper sulphate? What colour is a solution of Copper Sulphate?

  2. Copper sulphate is an example of a salt which is formed when an insoluble base reacts with an acid. This is a set of instructions for preparing copper sulphate (CuSO4) from sulphuric acid and copper oxide. INSTRUCTIONS 1. Add small amounts of solid copper oxide powder to 25 cm3 of dilute sulphuric acid, and stir. 2. Keep adding powder slowly until some unreacted copper oxide remains at the bottom. 3. Filter the solution to remove the unreacted copper oxide and transfer the filtrate into an evaporating basin. 4. Heat the contents of the evaporating basin gently until about a third of the water has evaporated. 5. Leave the solution to cool and then examine the crystals which are formed. QUESTIONS (answer in full sentences in your book) 1 Write a list of all the apparatus that would be needed to prepare copper sulphate crystals. 2 What safety precautions would you need to take if you were following these instructions? 3 Why is it better to have copper oxide powder left in the beaker after the reaction, rather than having dilute sulphuric acid left behind? 4Why was it necessary to filter the mixture before evaporating it? 5Write word equation for the reaction which took placebetween Copper oxide and sulphuric acid 6Describe what the copper sulphate crystals look like?

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