Lloyd works in a testing laboratory where food samples are submitted by customers and analyzed by chemists

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Lloyd works in a testing laboratory where food samples are submitted by customers and analyzed by chemists. One curious customer submitted a suspectedly impure sample of glucose which weighs 4.117 g. He wants to determine how pure the sample is. So, a chemist in the testing laboratory subjected the sample to bomb calorimetry. Replicate analyses resulted to an average rise in temperature of 3.134 oC. She then found out from the instrument manual that the heat capacity of the calorimeter is 19.65 kJ/oC. Help her calculate for the purity (% g/g glucose) of the submitted sample.