Question

how would you prepare a saturated solution of sodium chloride in water at 24°C?What will happen if this solution is cooled to 10°C?

Answer 1

dissolve 36 gram of NaCl in 100 ml of H2O to prepare saturated solution on cooling nothing happens

Answer 2

Answer:

We will take hundred gram of distilled water in a beaker at 1 gram of NaCl and stirr with a glass rod till the NaCl dissolves. continue adding a gram of NaCl at a time and stirr vigorously after each adition. a stage will come when no more of the NaCl will dissolve at that temperature no matter how long it is left there are how vigorously it is stirred. if the temperature of a saturated solution is lowered the solvent slowly vaporizes and part of the dissolved solute separate out in the form of crystals.

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