A 20g mixture containing 95% (by weight) of A and 5% of B is recrystallized in toluene (b.p. 110°C). Solubilities in g/100 mL are given below. What amount of solvent is needed to obtain pure A and how much pure A will be recovered? Show all calculations and explain your answers. Hint: the goal of a recrystallization is gl keep ALL of the impurity dissolved at the low temperature. Knowing that, how much solvent is needed for this example?

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A 20g mixture containing 95% (by weight) of A and 5% of B is recrystallized in toluene (b.p. 110°C). Solubilities in g/100 mL are given below. What amount of solvent is needed to obtain pure A and how much pure A will be recovered? Show all calculations and explain your answers. Hint: the goal of a recrystallization is gl keep ALL of the impurity dissolved at the low temperature. Knowing that, how much solvent is needed for this example?
8
ontaining 95% (by weight) of A and 5% of B is recrystallized in toluene (b.p. 1
Solubilities in g/100 mL are given below. What amount of solvent is needed to obtain pure A ar
much pure A will be recovered? Show all calculations and explain your answers. Hint: the goal o
recrystallization is to keep ALL of the impurity dissolved at the low temperature. Knowing that,
much solvent is needed for this example?
Temperature
Solubility (g/100 ml)
A
BI
20⁰
110
10.0 g
8.0g
Experimental
NOTE: You will need a data table for your solvent tests and also you will need to report your m.p
appearance, and % yield of compound. Read the experiment then organize your data tables.
Warning! You will be expected to think and plan before you act on this experiment very lit
Transcribed Image Text:8 ontaining 95% (by weight) of A and 5% of B is recrystallized in toluene (b.p. 1 Solubilities in g/100 mL are given below. What amount of solvent is needed to obtain pure A ar much pure A will be recovered? Show all calculations and explain your answers. Hint: the goal o recrystallization is to keep ALL of the impurity dissolved at the low temperature. Knowing that, much solvent is needed for this example? Temperature Solubility (g/100 ml) A BI 20⁰ 110 10.0 g 8.0g Experimental NOTE: You will need a data table for your solvent tests and also you will need to report your m.p appearance, and % yield of compound. Read the experiment then organize your data tables. Warning! You will be expected to think and plan before you act on this experiment very lit
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