How long does it take to dissolve an egg shell in vinegar?

The amount of time it takes to dissolve an eggshell in vinegar depends on the concentration of the vinegar and the size of the eggshell fragments. Typically, it takes several days to completely dissolve an eggshell in vinegar. Here's a general timeline of the process:

- Within a few hours: The eggshell will start to soften and become cloudy as the vinegar begins to break down the calcium carbonate.

- After 1-2 days: The eggshell will become thinner and more brittle as more of the calcium carbonate dissolves.

- After 3-5 days: The eggshell will start to break into smaller fragments and become easier to crush.

- After 7-10 days: Most of the eggshell will have dissolved, leaving behind only a thin membrane and any residual pieces.

It's important to note that the dissolution rate may vary depending on the type of vinegar used and the temperature of the solution. Using warmer vinegar or a higher concentration of vinegar (such as distilled white vinegar) can speed up the process.