Write down the steps of obtaining a saturated solution of salt in water. *
Answers
Explanation:
When compounds are synthesized, they often have contaminating materials mixed in with them. The process of recrystallization can be used to remove these impurities. The crystals are dissolved in a hot solvent, forming a solution. When the solvent is cooled the compound is no longer as soluble and will precipitate out of solution, leaving other materials still dissolved.
Here are three ways to make a saturated solution:
Add solute to a liquid until no more will dissolve. Solubility often increases with temperature, so you may be able to get more solute into a hot solvent than you would if the solvent was cool. For example, you can dissolve much more sugar in hot water than you can in cold water.
Evaporate solvent from an unsaturated solution. You can evaporate the solvent by permitting air circulation or by heating the solvent.
Add a seed crystal to a supersaturated solution. The seed crystal will cause the solute to precipitate, leaving a saturated solution.
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