Making crystals

MAKING A COPPER SULFATE SALT

Aim: To produce copper sulfate salt by reacting copper oxide with an acid

Equipment: 
Copper oxide powder, dilute sulfuric acid, measuring cylinder, 2x 100mL beakers, bunsen burner, tripod, gauze mat, funnel, filter paper, themometer, spatula, evaporating basin, stirring rod.

Method:

1. Add 20mL of sulfuric acid to a 100mL beaker. Heat to 70degrees. Turn off your bunsen.
2. Once heated, use a spatula to add pea sized portions of copper oxide. Stir for 30secs
3. Repeat step 2 until no more dissolved.
4. Fold filter paper and place in funnel. Place the funnel in the second beaker.
5. Make sure your first beaker is cool enough to hold and then pour it into the funnel. Gently swirl and allow to filter through.
6. Rinse the beaker and fill with 50mL of water and place on tripod. 
7. Place evaporating basin on top of beaker and pour some solution in.
8. Gently heat until the solution has reduced by half.
9. Take off heat and allow to cool.

Results and Discussion:
The acid quickly reached the required temperature of 70 degrees and it then took multiple portions of the copper sulfate before the solute was no longer dissolving and a very dark blue solution was present. After filtering the solution it became a light blue.
We then placed that solution in an evaporating basin 

After reducing it by half we left it overnight.
The next day there were little blue crystals formed in the basin and no more solvent.

Conclusion:
This experiment involved dissolving a solute in a solvent to create a solution. We then filtered the solution and evaporated it until we were left with the solid again, in the form of crystals- a successful experiment!

SOLUBILITY EXPERIMENT

Aim:

To investigate the solubility of baking soda, table salt and copper oxide to see which is the most soluble

Equipment:

100mL beaker, 100mL measuring cylinder, salt, baking soda, copper oxide, stirring rod, spatula.

Method:

1. Fill beaker with water
2. Add a spatula full of baking soda.
3. Stir the solution until it dissolves.
4. Repeat step 2 and 3 until no more will dissolve.
5. Record how many spatula fulls were added.
6. Repeat the experiment with salt and copper oxide.

Results: