Experiment 4 - Experiment 4: The N-Bottle Problem Taylor...

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Experiment 4: The N-Bottle Problem Taylor MacDonald Partner: Beth McCulloch 10/23/2007 Tuesday Section 025 Vikas S.
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Introduction: The purpose of this experiment is to identify the ionic substances present in 7 unknown solutions. You are to do this through your knowledge of acid-base reactions and precipitation reactions. Through this experiment you will learn how to determine whether a solution is acidic or basic, how to use flame tests to determine the presence of certain ions, as well as how to use a set of solubility rules effectively. The concepts of acid-base reactions and solubility laws from Chemistry 101 were applied in this experiment. The techniques used included flaming solutions with a wire loop, using litmus paper to determine whether a solution is acidic or basic, and mixing solutions to test for the presence of a precipitate. This knowledge will be useful in future experiments when it is necessary to determine if a solution is an acid or a base, if solubility rules need to be used, or if a flame test is required. Experimental Procedure: The procedure followed was that given in the lab manual: Sprague, Alexander, Padolik & Steffel, Laboratory Experiments for First Year Chemistry, 3 rd ed. pp. 4-1 to 4-4. Results: The results are included on the report sheets attached to the report as well as the in the actual report. The flame and litmus test results as well as the mixing results table are included on the report sheet and the net ionic equations table is included in this section on the next page. Also a table showing the compounds in each solution is included in the Discussion section.
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Experiment 4 - Experiment 4: The N-Bottle Problem Taylor...

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