Equipment:A 250 ml beaker 100 ml of top water.
Method:
1.Fill the beaker of 100 ml of tap water.
2.Add a level teaspoon of baking soda. A level teaspoon obtained by running your ruler across the edge of the teaspoon.
3.Stir the solution until all the baking soda has been dissolved.
4.Repeat 2 to 3 until no more baking soda will dissolved
5.record how many teaspoon of baking soda were added
6.repeat the experiment, with the table salt.
Result:
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