Experiment no 1: to make egg shell disasppear
materials needed : white vinegar,egg,glass jar, lid
procedure:
1. Add egg to glass jar.
2.Pour vinegar to jar until egg sinks completely. Tiny bubbles of carbon dioxide gas start to appear on the eggshell after just a few moments.
3.wait for chemical reaction to complete (few days/week)
4.remove egg from vinegar and wash off remains.
results:
This is a acid-base reaction. Vinegar contains acetic acid. Eggshells contain calcium carbonate(base).
The calcium carbonate in the eggshell reacts with the acetic acid in the vinegar to form a water-soluable compound, calcium acetate, and carbon dioxide (CO2) gas. This reaction dissolves the eggshell, but leaves the inner membrane intact, creating a naked egg.
materials needed : white vinegar,egg,glass jar, lid
procedure:
1. Add egg to glass jar.
2.Pour vinegar to jar until egg sinks completely. Tiny bubbles of carbon dioxide gas start to appear on the eggshell after just a few moments.
3.wait for chemical reaction to complete (few days/week)
4.remove egg from vinegar and wash off remains.
results:
This is a acid-base reaction. Vinegar contains acetic acid. Eggshells contain calcium carbonate(base).
The calcium carbonate in the eggshell reacts with the acetic acid in the vinegar to form a water-soluable compound, calcium acetate, and carbon dioxide (CO2) gas. This reaction dissolves the eggshell, but leaves the inner membrane intact, creating a naked egg.