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Experiment 4 Organic Qualitative and Quantitative Analysis Date performed: Nov 18, 2004 Oleksandr Halytskyy Lab sect. 21 TA: Andrew Chan Chm140y Purpose: The purpose of the experiment was to become familiar with tests for different organic compounds (i.e. an aldehyde, a ketone, a primary alcohol, a secondary alcohol and an ester) in order to identify the functional group of an unknown organic compound. Dumas method was then used to determine the molar mass of the unknown organic compound. Method: Five known compounds and one unknown were given. A test was performed on each of the five compounds using a specific reagent for every compound. The five known compounds were: i. an aldehyde ii. a ketone iii. a primary alcohol iv. a secondary alcohol v. an ester i. Testing for aldehyde involved adding one drop of aldehyde to one millilitre of Tollen's reagent in a test tube and allowing the mixture to react for less than 10 minutes before noting down the result. ii. Testing for the ketone required...

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