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3. Describe how you would purify p-nitrobenzoic acid from a mixture of 9.0g of p-nitrobenzoic acid...

3. Describe how you would purify p-nitrobenzoic acid from a mixture of 9.0g of p-nitrobenzoic acid and 2.0g of o-nitrobenzoic acid using recrystallization. Tell what solvent you would use and how the components would be separated

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Answer #1

p-nitrobenzoic acid (4-nitrobenzoic acid) having lower melting point than o-nitrobenzoic acid (2-nitrobenzoic acid).

M.P of p-nitrobenzoic acid is 124 oC

M.P. of o-nitrobenzoic acid is 146-148 oC.

Following methods are used for recrysatllization.

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