Why is it important to increase the amount of solvent used if a reaction or puri

Question

Why is it important to increase the amount of solvent used if a reaction or purification procedure is scaled up? (select all that apply)

1. To ensure that the larger amount of material remains soluble 2. To help protect the solution against large temperature changes from exothermic or endothermic processes 3. To increase the amount of material that is transferred from 1 layer to another during an extraction 4. Trick question - only reactive chemicals need to be scaled, not the volume of unreactive solvent

Explanation / Answer

Options 1 and 3 are correct for this question.

1. 1. To ensure that the larger amount of material remains soluble (during reaction)

3. To increase the amount of material that is transferred from 1 layer to another during an extraction (during workup)

The solvent plays an important role in a reaction or during a purification process like workup.

A reaction to occur fruitfully at least one of the reactants should be completely dissolved in the chosen solvent.

During a reaction scale up, one has to increase the solvent volume to make sure that the reactants will dissolve in the solvent.

3. During the workup procedure greater the solvent volume higher the amount of material transformed into the aqueous layer to organic layer.

Hence here also increase of solvent volume is important.

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