Buffers Essay

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Irresistible? By Mikayla Messing 8/3/12 Section 623 Abstract To examine the effectiveness of buffers by titrating two sets of five different solutions using HCl and NaOH and monitoring the pH change of the various solutions. The data collected shows that the buffer systems made with sodium acetate and acetic acid were effect when titrated with the strong acid and the strong base. Comparison of all the solutions shows that the concepts of buffers holds true for the results from the experimentation. Introduction The main objective of this lab was to test the ability of buffered and unbuffered solutions to resist changes in pH with the addition of strong acids and strong acid. This will be accomplished by making two sets of five…show more content…
Table 1.2 below shows the change in pH when beakers six through ten were titrated with 1.0M sodium hydroxide. Beaker | 6 | 7 | 8 | 9 | 10 | mL of NaOH | pH | pH | pH | pH | pH | 0 | 6.34 | 8.173 | 5.128 | 5.762 | 5.73 | 1 | 11.01 | 11.39 | 5.048 | 5.772 | 5.96 | 2 | 11.68 | 11.76 | 5.298 | 5.912 | 6.17 | 3 | 11.92 | 12.14 | 5.368 | 6.012 | 6.33 | 4 | 12.06 | 12.33 | 5.488 | 6.142 | 6.53 | 5 | 12.37 | 12.35 | 5.928 | 6.382 | 6.59 | 6 | 12.41 | 12.41 | 11.07 | 7.642 | 6.78 | 7 | 12.56 | 12.46 | 12.26 | 12.11 | 7.14 | 8 | 12.62 | 12.55 | 12.37 | 12.45 | 12.63 | 9 | 12.65 | 12.57 | 12.54 | 12.71 | 13.33 | 10 | 12.71 | 12.67 | 12.62 | 12.78 | 13.58 | Table 1.2 shows the effect of adding NaOH on the pH of the beakers. Table 1.1 and 1.2 show that the pH of distilled water and sodium chloride changed dramatically with the addition of just one mL of the hydrochloric acid or the sodium hydroxide. When milliliters
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