Sunday, September 15, 2013

Isopentyl Acetate Synthesis

Isopentyl Acetate Synthesis Post-Lab Submitted By Teaching Fellow: reckoning of percent recurrence Glacial Acetic sharp (MW = 60.05 g/ jetty, closeness = 1.05 g/mL) Amount employ = 3.5 mL correspond to (3.5 mL) * (1.05g/mL) * (1 groyne/ 60.05g) = 0.061199 jetty Isopentyl alcohol (MW = 88.148 g/ breakwater, density = 0.8104 g /mL) Amount used = 2.5 mL corresponding to (2.5 mL) * (0.8104 g/mL) * (1 breakwater/ 88.148 g) = 0.229840 mol Sulfuric Acid (MW = 98.08 g/mol, density = 1.84 g/mL) Amount used = 5 drops ? 0.25 mL corresponding to (0.25 mL) * (1.84 g/mL) * (1 mol/ 98.08) = 0.00469 mol The passing reagent for this reply is Glacial acetic acid. It recurrences the least amount of isopentyl Acetate in this response, and therefore is the limiting reagent. The theoretical yield is (0.061199 mol mol of Glacial acetic acid) * (1 mol of isopentyl Acetate / 1 mol of Glacial acetic acid) * (130.19 g of isopentyl Acetate / 1 mol of isopentyl Acetate ) = 7.967 g of return The percent yield of purified produce is 100% * (1.0 g demonstrable yield harvest-feast/ 7.967 g theoretical yield product) = 12.55% consequence A 12.
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55% yield of purified isopentyl ethanoate was synthesized by the reaction betwixt glacial acetic acid and isopentyl alcohol, and using concentrate sulphuric acid as a catalyst. The actual yield of the product is much lower than the theoretical yield overdue to ninefold factors. First, the condensed product was not completely acquired from the still. Some of the product was stuck in the still. Moreover, some of the product may have evaporated during th e distillment process. The purified produ! ct had a white color and a distinctive banana tree smell. The product was confirmed to be isopentyl acetate via infrared spectroscopy. As expected, peaks indicated a carbonyl group, a C-O-C bond, paraffin oil -CH2- groups, and alkane bonds (See prone IR spectrum graph). Isopentyl acetate contains all the previously mentioned groups and bonds; therefore, the reaction was successful....If you indispensability to get a full essay, effectuate it on our website: BestEssayCheap.com

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