Why does the addition of hydrochloride acid cause the product to precipitate? Wh

Question

Why does the addition of hydrochloride acid cause the product to precipitate?
When carrying out therecrystallization of a crude solid reaction product, a cautious chemist will always retain a small amount of the crude solid, rather than dissolving it all. Why? (It is not to ensure that all the product is not lost if the reaction was unsuccessful) Why does the addition of hydrochloride acid cause the product to precipitate?
When carrying out therecrystallization of a crude solid reaction product, a cautious chemist will always retain a small amount of the crude solid, rather than dissolving it all. Why? (It is not to ensure that all the product is not lost if the reaction was unsuccessful)
When carrying out therecrystallization of a crude solid reaction product, a cautious chemist will always retain a small amount of the crude solid, rather than dissolving it all. Why? (It is not to ensure that all the product is not lost if the reaction was unsuccessful)

Explanation / Answer

INorganic product precipitates because of the foramation of the chloride salt of the product. Organic product also precipitates because adding HCl means you ate adding aqueous solution to the rorganic medium.

Before recrystallization some amount of crude is always retained for further reference of the reaction. From the crude some basic analysis is done line mass of the product rather than checking for purity.

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