Tuesday, September 23, 2008

the one with the acids

Activity: Acid Test
Purpose: To see the reactions of baking soda on different products of varying acidity.

The effects of Baking Soda and:
  • Vinegar: It created quite a reaction and the syringe raised considerably.
  • Water: The water dampened the baking soda.
  • 50-50: Fairly predictable, seeing the results of the previous two. It sent the syringe about halfway up.
  • Lime juice: Large reaction, gas almost to the top.
  • Grape fruit: Not a very big reaction.
  • Orange: Small-ish.
  • Lemon: There was no lemon juice to test.

Observations:

  • It was neat watching the syringe raise depending on the amount of gas released.
  • The more acidic the liquid, the bigger the reaction that was created.
  • More acidic liquids: vinegar, lime juice, white grapefruit juice, and pink grapefruit juice.
  • The juice with baking soda reacted more because the acid was more concentrated, as compared to the larger surface area of the fruit.
blog you later,
[andrea]

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