The reason for the use of gravity filtration rather than vacuum filtration for a hot recrystallization solution should be determined. Concept introduction: Filtration is a physical process that is used to separate solid matter from a liquid by the addition of a filter medium through which only the liquid can pass. Gravity filtration is one of the methods of filtration of impurities from solutions by the use of gravity to pull liquid through a filter paper while the vacuum filtration technique can be done by the use of funnels with flat, perforated and porous surfaces.

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Chapter 9, Problem 3Q

Interpretation Introduction

Interpretation:

The reason for the use of gravity filtration rather than vacuum filtration for a hot recrystallization solution should be determined.

Concept introduction:

Filtration is a physical process that is used to separate solid matter from a liquid by the addition of a filter medium through which only the liquid can pass. Gravity filtration is one of the methods of filtration of impurities from solutions by the use of gravity to pull liquid through a filter paper while the vacuum filtration technique can be done by the use of funnels with flat, perforated and porous surfaces.

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2. When performing the recrystallization of an impure solid, why is it advised to use the minimal amount of solvent possible? Group of answer choices To minimize the amount of pure solid lost due to its solubility. To minimize the cost of the recrystallization. To reduce the time needed to filter the pure solid from the solvent after recrystallization. To minimize the amount of hazardous materials used.

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