Chem 2 BUffersLab Report

Chem 2 BUffersLab Report - CHEM 113 Understand Buffers...

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CHEM 113 Understand Buffers PURPOSE The purpose of this experiment is to understand the buffer’s pH and its ability to buffer additions of strong acids and bases. Additionally, buffering capacity related to dilution will be looked at. This can be done by titrating the buffer solution with hydrochloric acid and sodium hydroxide and monitoring the pH level with a pH meter. This will ultimately help in understanding the proper and effective use of buffers.
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PROCEDURES The first step involves preparing the 2 solutions, a buffer with 0.060 M acetic acid/0.060 M acetate ion and a buffer with 0.060 M ammonia/0.060 M ammonium ion. 100 mL needs to be prepared for each solution. Before coming to class it is necessary to calculate the grams of salt, and volume of acid or base needed for the buffer solutions. It is necessary to determine the volume of buffer needed, calculate the volume of 3.0 M ammonia or 3.0 M acetic acid needed, and determines the mass of salt (ammonium chloride or sodium acetate trihydrate) needed. Then the actual experiment begins by executing the same
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Chem 2 BUffersLab Report - CHEM 113 Understand Buffers...

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