Osmosis egg experiment salt water - have
Under the hard outer shell of a chicken egg is a semipermeable membrane that allows air and moisture to pass through. Because water molecules can move into and out of the egg but larger molecules cannot, the semipermeable egg membrane allows for an exploration of the concepts of diffusion and osmosis. Osmosis is the movement of a solvent, such as water, through a semipermeable membrane into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane. The process of removing the outer shell while leaving the underlying membrane intact presents an additional opportunity for observations, as an acid-base reaction occurs when you make the "naked" eggs for the osmosis experiment. Before the egg osmosis experiment can begin, the egg's hard outer shell must be removed. This is done by placing the eggs in a container of white vinegar, covering the container, and placing it in the refrigerator. Replace the vinegar after about 24 hours and let it continue react with the eggshells for another 24 hours, if needed. Carefully rinse any remaining eggshell off the egg under water, rubbing the egg gently, if needed.Osmosis egg experiment salt water Video
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