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using seperation and recrystalization techniques separate separation of .10 grams of oxalic acid, .40 grams of...

using seperation and recrystalization techniques separate separation of .10 grams of oxalic acid, .40 grams of bezophenone, and .50 grams of salicylic acid

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Answer #1

Oxalic acid and salicylic acid are slightly more polar than benzophenone and therefore intially benzophenone can be separated by washing the mixture with water after dissolving it in ether.By this repeatedly we can almost get the benzophenone in quantitative yield.

In case of salicylic acid there exists a great extent of hydrogen bonding and therefore it will have lesser reactivity towards week bases such as diisopropyl ethyl amine. Washing the etherial soltution of the mixture with aquoeus diisopropyl ethyl amine only takes the oxallic acid and leaves behind the salicilic acid. Again acidifying with HCl to ph= 1 would give the oxallic acid. In the previous etherial solution, there will only be salycilic acid. upon evaperation, it would give the salicilic acid

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