Describe the process of recrystallization (not a definition). Dissolve the subst

Question

Describe the process of recrystallization (not a definition). Dissolve the substance in water tmen fiter it througn a iter pape to separate the impurity r m crystois coo en filtrathon 1. the com pound, Let the emove them oy sucion Why does one boil the charcoal-unknown-water mixture as opposed to using only cold water? Why is it necessary to wait until the following week before determining the melting point of your unknown? What substance? is a mixed melting point? How is it used to confirm the identity of an unknown

Explanation / Answer

Ans 1 :

Recrystallization is the procedure to purify the substance on the basis of principle that the solubility of solute increases with the increase in temperature , and decreases at low temperature.

The solute is dissolved at higher temperature where the impurities dissolve too , and then the solution is freezed so the solute recrystallises and the impurities keep dissolved.

The solute can then be filtered out and dried to get pure crystals.

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