Copper sulfate crystals

• What are the main materials and equipment needed for the preparation of copper sulfate crystals?

  • Sulfuric acid
  • Copper oxide powder
  • Conical flask
  • Water bath
  • Spatula
  • Glass rod
  • Filter
  • Beaker
  • Evaporating basin
  • Watch glass
  • Bunsen burner
• What is the first step in the method for preparing copper sulfate crystals?

  Place some sulfuric acid in a conical flask and warm it in a water bath.
• When should you stop adding copper oxide powder to the sulfuric acid?

  When it is in excess.
• What should you do after adding copper oxide powder to the sulfuric acid?

  Stir the mixture with a glass rod.
• What is the purpose of filtering the mixture after adding copper oxide?

  To remove the excess copper oxide.
• What should you do with the copper sulfate solution after filtering?

  Pour it into an evaporating basin.
• What is the liquid called after filtering the mixture?

  The copper sulfate solution.
• How should you heat the copper sulfate solution?

  Heat it to evaporate half of the water.
• What is the next step after heating the copper sulfate solution?

  Pour the solution into a watch glass and leave it to evaporate completely.
• What are the steps involved in preparing copper sulfate crystals from copper oxide?

  1. Warm sulfuric acid in a conical flask.
  2. Add copper oxide powder and stir.
  3. Add copper oxide until in excess.
  4. Filter to remove excess copper oxide.
  5. Pour the filtrate into an evaporating basin.
  6. Heat to evaporate half of the water.
  7. Pour into a watch glass and leave to evaporate completely.