Preparation of Copper Sulphate

What is the base used to prepare copper sulphate?

• Copper oxide

• Sulfuric acid

• Copper sulfate

• Copper carbonate

What is the acid used to prepare copper sulphate?

• Copper oxide

• Sulfuric acid

• Copper sulfate

• Copper carbonate

What is the purpose of heating the sulfuric acid?

• To make the reaction go faster

• To dissolve the copper oxide

• To neutralize the acid

• To evaporate the water

What is a base?

• Any material that neutralizes an acid

• A metal oxide

• A metal carbonate

• A metal hydroxide

How can you tell if you have added excess copper oxide?

• The solution turns blue

• The solution turns black

• The solution turns green

• The solution turns red

What is the purpose of filtering the mixture?

• To remove the copper sulfate

• To remove the copper oxide

• To remove the sulfuric acid

• To remove impurities

Why is the evaporating dish heated over a beaker of boiling water?

• To prevent the copper sulfate crystals from breaking down

• To speed up the evaporation process

• To prevent the release of harmful gases

• To increase the yield of copper sulfate crystals

How long should the mixture be heated over the steam bath?

• 5 minutes

• 10 minutes

• 15 minutes

• 20 minutes

What is the final step after the water has evaporated?

• Scrape the copper sulfate crystals onto a piece of paper

• Pour the copper sulfate solution into an evaporating dish

• Heat the copper sulfate crystals directly over a Bunsen burner

• Add more copper oxide to the evaporating dish

What is the purpose of the experiment?

• To prepare copper oxide

• To neutralize sulfuric acid

• To make copper carbonate

• To obtain pure dry copper sulfate crystals