Investigating Solubility .

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 a 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 & Discussion:

These are my results for the experiment.

Salt: 2

Copper oxide : 0

Baking Soda: 4
I found out that no matter how much you mix copper oxide in water it will never dissolve. It takes salt 2 spatula's to dissolve and for baking soda, it takes 4. 

Conclusion:
In conclusion, copper oxide is impossible to dissolve in water, baking soda and salt are possible. The aim was to see which solid was the most soluble. Baking soda and salt were but the quickest was salt.