respective part of the experiment. In this experiment, as previously mentioned, we expected our freezing point to decrease from Part 1 to Part 2, as the benzoic acid was being dissolved in the lauric acid. With our data, our conclusion supported our initial hypothesis and our expectations that freezing point would decrease were met, as our freezing point in Part 1 was 40.09°C and 39.283 °C for Part 2.
With our results, we were able to determine that our freezing point did indeed decrease as expected, from 40.09°C to 39.238°C. Post-Laboratory Questions: 1. Give three aspects of this experiment that contribute to the error in the ultimate value of the molar mass of benzoic acid. Many things could have affected the error in our lab experiments such as the Temperature Probe was not cleaned correctly as well as the Cuvettes weren’t either. Our test tubes may have had left over debris causing contamination of our experiment. We also may have used to little or too much of each solution. 2.List the other three colligative properties.The other colligative properties are boiling point elevation, Vapor pressure lowering, andosmotic pressure 3.Draw the structure of benzoic acid. How would the possibility of ionization affect your values?
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