Unformatted text preview: due to mistakes in calculation or miscalibration of the pH measuring tool. The measured pH values in this part were 4.9 and 3.7 respectively, and the calculated pH were 5.9 and 3.7 respectively. HA -> H+ + A- CH3COOH -> H+ + CH3COO- Part 3 The measured pH values in part 3 were 7, 1.4, 12.4, 4.5, 4.4, and 4.6 respectively. The calculated values were 7, 1.4, 12.4, 4.5, 4.4, and 4.6. The values matched perfectly in this part. Sources of Error There were several possible sources of error in this lab. Some were incorrect calibrations or malfunctions with the pH measuring device and the solutions not mixing together completely. Also there may have been incorrect calculations and incorrect additions of chemicals....
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- Spring '09
- pH, Equivalence point, pH Values, Ka value