Question

If charcoal and sugar were the main impurities present in crude acetanilide,
would recrystallization from water be a good method of purification and why?

Answer 1

yes, If charcoal and sugar were the main impurities present in crude acetanilide, would recrystallization from water be a good method of purification

Acetanilide has a much higher solubility in hot water than in cold water. The purified solid will not recrystallize later in the experiment if too much hot solvent is added in the beginning. Activated charcoal is then added to remove colored impurities.

What is the purpose of counting activated carbon to the cordial solution during a recrystallization?

Added during a recrystallization to bind high molecular weight, colored impurites.

What is the purpose of charcoal in purification of chemicals?

The huge surface area of activated charcoal gives it countless connecting sites. When certain chemicals pass next to the carbon surface, they stick to the surface and are entangled.

Activated charcoal is good at trapping other carbon-based pollutants ("organic" chemicals), as well as things like chlorine.

To learn more about  recrystallization, refer

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