Making salts

  

Aim:

To produce copper sulfate salt by reacting copper oxide with an acid.

Equipment:

• Copper oxide powder
• dilute 
• sulfuric acid
• 50mL measuring cylinder
• two 100 mL beakers
• Bunsen burner
• tripod
• gauze mat
• funnel
• filter paper

Method:

1. Add 20 mL of sulfuric acid to a 100mL beaker. Heat the acid until it reaches 70 C Turn off your bunsen burner.
2. Once heated, use a spatula to add pea-sized portions of copper oxide to the beaker.
3. Repeat step 2 until no more will dissolve.
4. Fold the filter paper and place it in the funnel.
5. Make sure the beaker is cool enough to hold at the top.
6. Gently swirl the contents of the beaker to mix, and then pour into the filter paper in the funnel. Allow the filter through.

Observation:

We did this experiment and then we saw the boiling sulfuric acid turned to green.