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 has dissolved.
3.) Stir the solution until all of the baking soda has dissolved.
4.) Repeat steps 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:
Results:
salt-1
baking soda-4
copper dioxide-1
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=
Number of grams of table salt that dissolved=
Discussion:
The Salt is more soluble than baking soda. If you put copper in it, it will not dissolved.
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