During experiment number 1, you forgot to label your beakers and you are not sure which beaker contains the aqueous layer and which contains the organic layer. How could you quickly and efficiently determine which one is the aqueous layer.
Hi,
To determine which beaker will contain aqueous layer and organic layer we can use few drops of water. Take few drops of sample from both beakers into 2 test tubes and add 2 drops of water to both test tubes and shake well. The test tube in which the added water dissolves and forms miscible solution is of aqueous layer and the other one with immiscible droplets of water is of organic layer. The reason is "Like dissolves like". Aqueous layer dissolves water.
Best Wishes.
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