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September 1, 2014

Homework Help: chemistry

Posted by yram on Monday, December 10, 2012 at 10:33am.

mixed about the 5grams of benzois acid and sugar. divide the mixture into two equal portions . to thheh first portion add 20ml of water. shake vigorously and filter. examine the residue and compare with the original sample. heat the filter to dryness and identify the residue. to the second portion add 10ml of ethanol. shake the mixture and filter. examine the residue and compare to the original sample. heta the filtrate to dryness and identify the residue. what will be the observation?

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