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Chemistry practical questions help

Recrystallization of methyl-3-nitrobenzoate -
1.) Suggest ways in which the prodcut can be lost during the experiment
2.) Give the names + structures of two nitro compounds that could contaminate the methyl-3-nitrobenzoate crystals before recrystallisation.
3.) Why is methyl-3-nitrobenzoate the major organic product rather than the other two nitro compounds?
4.) What conditions used in the preparation help to prevent formation of di/tri nitro products?
5.) Explain how data from the melting point determination can be used to discuss the purity of your product.
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Avatar for rzi999
rzi999
15
1. Filtration, washing, 2. ammonia, ammonium 3. talking about forming the most stable compound and least available nucleophile, 4. excess concentrated ammonia, heat 5. a different measured melting point value to the data book indicates impurities are present
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Avatar for iViiRaLz
iViiRaLz
OP
13
Original post by EverythingGreen
1. Filtration, washing, 2. ammonia, ammonium 3. talking about forming the most stable compound and least available nucleophile, 4. excess concentrated ammonia, heat 5. a different measured melting point value to the data book indicates impurities are present


Thanks a lot :smile:

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