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Showing posts with label Hurumanu 3. Show all posts
Showing posts with label Hurumanu 3. Show all posts

Monday, February 17, 2020

Solubility Experiment - Science

Solubility Experiment

Aim: To see if salt or baking soda dissolves more in water.
Hypothesis: I don't have any theories but I think the baking soda will dissolve faster but it will turn to paste but that is it changing from it's original form so it had dissolved. 
Equipment: A 250mL breaker, 100mL measuring cylinder, salt, baking soda, a stirring rod, a teaspoon and a ruler.
Method: 
1: Fill the breaker with 100mL of tap water.
2: Add a level teaspoon of baking soda. A level teaspoon is obtained by running your ruler across the edge of the teaspoon.
3: Stir the solution until all of the substance 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 again with salt. 
Results: 

SoluteNumber of teaspoons that dissolved in 100 mL of water.
Baking Soda3
Salt7
Discussion: Salt took more spoonfuls to stop dissolving. The baking soda took longer because it's attraction to water was less than salt and water.
Conclusion: The experiment did end up being successful. My hypothesis was incorrect but I was right about the baking soda dissolving faster.