What happens when eggs get older during storage?
A) The color of egg yolk changes
B) The size of aircell increases
C) Egg white becomes thinner
D) Both B and C are correct
What happens when eggs get older during storage?
| A) The color of egg yolk changes |
| B) The size of aircell increases |
| C) Egg white becomes thinner |
| D) Both B and C are correct |
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Related questions
Investigation:
Make your predictions in the spaces provided on your lab report.
Mark the eggs with pencil, and the four bowls, with the following labels:
Water, Vinegar, Vinegar and Salt, Vinegar and Sugar
In the mixing bowl, combine 2 teaspoons of food coloring with 2 cups of water and mix well. Pour ½ cup of this solution into each of the four bowls.
Add 1 tablespoon of vinegar to each of the three "vinegar" bowls.
Add 1 tablespoon of salt to the "salt" bowl, and add 1 tablespoon of sugar to the "sugar" bowl.
Stir each of the solution bowls until they are thoroughly mixed.
Use the spoons to lower each egg into its respective solution. Wait 10 minutes, then remove the eggs with the spoons.
Rinse each egg three times in the tub of water, then set the eggs someplace safe to dry. A paper towel or egg carton would do just fine.
Answer the set of summary questions on your lab report, and turn in the completed lab to your instructor.
Observations
| Conditions | Observations |
| Water | The egg showed little or no change in color. |
| Vinegar | The egg changed to the color of the food coloring. |
| Vinegar and Salt | There was little or no change in the color of the egg. |
| Vinegar and Sugar | The egg changed to the color of the food coloring. |
1. Which conditions caused the food coloring to form a compound on the surface of the egg? How could you tell?
2. When salt is added to the solution, it dissolves into its component ions. How did this seem to affect the compound formed on the egg shell?
3. In the vinegar and salt solution, is it possible there was some other compound that formed on the egg shell instead of the food coloring? Based on what you know about the charge on the egg shell and the ions in the solution, what might have reacted to form a compound on the shell instead of the food coloring?
4. What affect did the sugar have on the reaction of the food coloring with the egg shell, if any? Does this indicate anything to you about the charge of the sugar in the solution?
