Explain how vinegar was able to remove the calcium shell. (a) What happened to t

Question

Explain how vinegar was able to remove the calcium shell. (a) What happened to the size of the egg after remaining in vinegar? (b) Was there more or less liquid left in the jar? (c) Did water move into or out of the egg? Why? (a) What happened to the size of the egg after remaining in distilled water? (b) Was there more or less liquid left in the jar? (c) Did water move into or out of the egg? Why? (a) What happened to the size of the egg after remaining in syrup? (b) Was there more or less liquid left in the jar? (c) Did water move into or out of the egg? Why? Was the egg larger after remaining in water or vinegar? Why? Why are fresh vegetables sprinkled with water at markets? Roads are sometimes salted to melt ice. What does this salting do to the plants along roadsides & why?

Explanation / Answer

Vinegar is slightly acidic as it is made up of 3% acetic acid. Egg shells are made of calcium carbonate which readily dissolves in acetic acid. The chemical reaction is given below

CaCO3 + CH3COOH –> Ca + H2O + CO2

Remaining questions cannot be answered without knowing the experiment dealt with.

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