Question

please answer only (c) this is a spectroscopy lab. Please give possible errors that would effect a spectroscopy lab please give a generalized answer thank you

4) Take into account your dilution factors and calculate the (grams of sugary serving and the relative error Be sure to take into account any propagation of error Solution (unknowns) Relative error Pepsi Grams of sugar serving 61.5599 66.466 g . 10.89 Min. Dew 13.7 % 5) Calculate a 95% CI for grams of sugar/serving for each unknown. Solution (unknown) Pepsi 95% CI + - 0.2009 + - 0.01907 Grams of sugar/serving @ 95% al 73.926 g 67.734 g Min Dew 6) Compare this to the label value Label value Relative error 95% CI Solution (unknown) Pepsi Min Dew 7.14 % 12.03 % 7) Include a brief discussion conclusion about the quality of the results and the goal of the experiment Some questions to consider a. Since this technique is selectivo, how do think this might affect your results? b. How does this compare to the manufacture label? Why might they be different? Consider the difference between glucose, fructose, sucrose and high fructose corn syrup c. What other errors or interferences might have impacted your results?

Answer 1

The sources of errors are: (1) the location absorption and spatial extent change with respect of the to the optical prob. 2) possible differences in the spatial distribution of hemoglobin species. s) The absolute magnitudes and relative differences in path length factors as a of wavelength: function se) I The two compoundes having some or nearly same spectra then they are difficult to understand. 57 Some compound having nearly same wavelength therefore during identification some errors are indr introduced. of In spectroscopy lab is packed the is taken to other radiations are not precaution falls on compe 7) During handling of compound error is introduced. some human