Menurut Kamus Dewan, FUAD bermaksud hati (perasaan)
Wednesday, August 6, 2014
Amazing And Funny Experiment With Egg And Vinegar
Original source : http://funsterz.com Posted : April 2012 Author : Mark
When you soak a raw egg into a vinegar over two days, the
vinegar will dissolve the eggshell. Eggshell is mostly made up of calcuim
carbonate and that is the reason it is hard. Vinegar contains acetic acid so when vinegar gets mixed with the egg, the acetic acid which is present in
the vinegar dissolves the shell of the egg and the egg becomes elastic. The contents of the egg becomes soft and looks like jelly. If you repeat the same
experiment with a boiled egg, the shell gets dissolved and the egg becomes
elastic like a rubber ball.
In this picture you can see that an egg is being kept inside a jar filled with
vinegar. Pour 9 % of vinegar into a transparent glass and place the egg inside the
glass. You will find bubbles of carbon dioxide being released immediately on the
surface of the egg.
90 % of the shell of a bird's egg is made up of calcium carbonate and when the
interaction takes place with the acid, the shell begins to disintegrate, releasing the carbon dioxide. After 12 to 15 hours you can see that the calcium carbonate from the surface of
the egg is dissolved and only a film between the surface and the egg
You can then remove the egg from the glass of vinegar and rinse the egg under running water.
When you compare both the eggs as shown in the image, the egg which was kept in
vinegar is slightly larger in size than the normal egg.
There are no shells on this egg and you can play with this elastic egg. The flim is
very thin and and it can get torn if it is not handled properly.
The picture of a rubber egg.
Warning: Eating this egg is dangerous and hazardous to one's health