Question

In order to dissolve a chemical sample in a recrystallization solvent, add the room-temperature solvent Choose... in an Erlenmeyer flask on a hot plate. Turn on the heat, starting at Choose... . Using a Choose... , add additional solvent from a second container on the heat source. Swirl the sample flask after each addition, and try to add Choose... in order to dissolve the solid.

Answer 1

In order to dissolve a chemical sample in a recrystallization solvent, add the room-temperature solvent just until it covers the sample in an Erlenmeyer flask on a hot plate.

What is recrystallization solvent?

Recrystallization involves dissolving the material to be purified (the solute) in an appropriate hot solvent.

Recrystallization, also known as fractional crystallization, is a procedure for purifying an impure compound in a solvent.

The method of purification is based on the principle that the solubility of most solids increases with increased temperature. Small crystals may trap impurities.

Thus, in order to dissolve a chemical sample in a recrystallization solvent, add the room-temperature solvent just until it covers the sample in an Erlenmeyer flask on a hot plate. Turn on the heat, starting at a low setting and increasing gradually.

Learn more about the recrystallization solvent here:

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