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Determination of Sugars by Density

# Determination of Sugars by Density - and to calculate the...

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Determination of Sugars by Density Jenine Hajjar

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October 1, 2007 Professor Lloyd Chem 110 Sect. C Determination of Sugars by Density Purpose The objective of the lab was to determine the percent sugar in some commercial products. We did this by plotting the relationship between concentration and density, which was linear. Procedure Refer to pages 13-14 in laboratory notebook for the Determination of Sugars by Density lab. Calculations
Summary of Results % Sugar Ave. Density (g/mL) 0 0.994 4.98 1.009 10.24 1.029 15.63 1.048 Slope (m): .0035 y-intercept (b): .994 equation: y=.0035x + .994 Product Identity Ave. Density (g/mL) % Sugar cranberry juice 1.038 12.57 arizona iced tea w/lemon 1.034 11.43 Conclusion The purpose of this lab was to teach the student how to calculate the percent sugar and a solution

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Unformatted text preview: and to calculate the percent sugar in commercial products by referring to calculations gathered from experiment, such as the graph we had to make. The results of the experiments were finding that cranberry juice has a 12.57% sugar concentration and Arizona iced tea with lemon has a 11.43% sugar concentration. Possible sources of error could be not reading wrong measurements, not washing the beakers or rinsing the pipette between readings. I also accidentally dumped out my first batch of solutions and needed to make a new batch in order to proceed with the experiment. I discarded my original data for the sugar solutions because I had dumped them out and no longer had those solutions to use for the remainder of the experiment....
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Determination of Sugars by Density - and to calculate the...

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