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Dissolving A Naked Egg

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by

Grismeldys Beato

on 10 June 2016

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Transcript of Dissolving A Naked Egg

Dissolving A Naked Egg
Our Hypothesis
If lemon juice has a lower pH level than vinegar (meaning it is a stronger acid), then the lemon juice will have a stronger reaction/effect on the egg shell.
Materials:
Three eggs
Acids (Lemon juice and Vinegar)
Three containers
Water
Gloves
Procedure
1. Place each egg in the container.

2. Add enough vinegar to cover the eggs. Notice that bubbles form on the eggs. Cover the container, put it in the refrigerator, and let the eggs sit in the vinegar for a day.

3. Use your big spoon to scoop the eggs out of the vinegar.


4. Carefully dump out the vinegar. Put the egg back in the container and cover them with fresh vinegar. Leave the egg in the refrigerator for 2 hours.

5. Scoop the egg out again and rinse it carefully. If any of the membranes have broken, let the egg ooze out, and throw that egg away.

6. When you’re done, you’ll have an egg without a shell.

7. Repeat the same steps for the other acids.


By: Athalia, Judany, Grismeldys
Observations:
Credits
http://www.stevespanglerscience.com/lab/experiments/naked-egg-experiment/
http://ewart.org.uk/science/structures/str6.htm
What acid has the strongest effect on egg shells?
Question:

L
Lets Try with Hydrochloric Acid!!!
Hyrdrochloric acid is a clear, colorless, fuming, poisonous, highly acidic aqueous solution of hydrogen chloride. HCl is used as a chemical intermediate and in petroleum production, ore reduction, food processing, pickling, and metal cleaning. It is found in the stomach.It is also called muriatic acid.
Analysis:
Water has pH level of 7. This means that water is neutral and as expected, it had no effect on the egg. Also, since the lemon juice is more acidic than the vinegar, the lemon juice had a bigger effect on the egg.
Furthermore, since the eggs were placed in refrigerators, and was cold, this may have slowed down the reaction.
Lemon Juice
Our Limitations
Water
Day 1 Day 3
As shown above, the images depict the water's low impact on the egg; By the end of day 3, there is still no change in the eggshell.
Out of all the acids, lemon juice had the greatest impact on the egg. Within the first few hours of being in the solution, the water had bubbles in it once the egg was dropped into the juice. The next day, the eggshell was destroyed; there were yellow contents (assuming its the yolk from the egg) in the solution.
Vinegar
Unlike Water, vinegar had a great impact on the egg. Although there were a few difficulties at the beginning of the experiment, the vinegar had successfully destroyed the egg shell.
Observations, Con't
Placing the eggs in the solution
Cooking the lemon juice instead of the actual lemon juice
Didn't test eggs outside of the fridge
One egg being frozen
Full transcript