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Topic: synthesis of acetaminophen  (Read 7850 times)

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greenry

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synthesis of acetaminophen
« on: September 25, 2004, 06:45:37 PM »
I am completing my write up for a lab that dealt with the synthesis of acetaminophen. However I am having problems calculating the percent yield. I keep on getting a percent yield of 3020% and I can't see this being close to correct. We used 1.05g of p-aminophenol, 1ml of acetic anhydride, and I got 44.37g of product. Am I doing something incorrectly or is 3020% really the percent yield? Thanks.

Offline Donaldson Tan

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Re:synthesis of acetaminophen
« Reply #1 on: September 26, 2004, 12:08:10 PM »
We used 1.05g of p-aminophenol, 1ml of acetic anhydride, and I got 44.37g of product. Am I doing something incorrectly or is 3020% really the percent yield? Thanks.

The total mass of products won't exceed the total mass of the reactants
"Say you're in a [chemical] plant and there's a snake on the floor. What are you going to do? Call a consultant? Get a meeting together to talk about which color is the snake? Employees should do one thing: walk over there and you step on the friggin� snake." - Jean-Pierre Garnier, CEO of Glaxosmithkline, June 2006

greenry

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Re:synthesis of acetaminophen
« Reply #2 on: September 26, 2004, 12:35:40 PM »
Yeah, I think someone zeroed the weight scale with some object that was light before I weighed my product throwing my results off. Oh well.

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