Investigating solubility

Aim: To investigate the solubility of baking soda (sodium hydrogen carbonate) and table salt (sodium chloride) to see which is the most soluble in water.

Equipment: A 250 ml beaker, 100 ml measuring cylinder, salt, baking soda, a stirring rod, a teaspoon and a ruler.

Method:

1. Fill the beaker with 100 ml of tap water.
2. Add a level teaspoon of baking soda. A level teaspoon is obtained by running your ruler across the edges of the teaspoon).
3. Stir the solution until all of the baking soda has dissolved.
4. Repeat step 2 and 3 until no more baking soda will dissolve into the solution.
5. Record how many teaspoons of baking soda were added.
6. Repeat the experiment, with the table salt.

Results: 

Your teacher will weigh the amount of baking soda and salt in a teaspoon. Use this number to calculate how many grams of each solid dissolved into the water.

Number of grams of baking soda that dissolved= 4 

Number of grams of table salt that dissolved= 12

Number of grams of carbon ll oxide disolved= 0

Conclusion:

We found out that out of the 3 things we tested table salt is more soluble than any of the 3 and baking soda will dissolve 4-6 teaspoons. Carbon ll oxide is insoluble which means it can't be dissolved.