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explain the principle on how to determine the concentration of syrup using hand refractometer
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- Kiko wants to determine the concentration of an unknown solution which produces a green solution. However, the spectrophotometer he uses doesn't have a function to determine the analytical wavelength of the solution. What is the most probable analytical wavelength he can use for the experiment? Refer to the color wheel below.why does the choice and use of a blank matter for Spectrophotometry?explain briefly the principle on how to determine the concentration of syrup using hand refractometer
- What does a refractometer reading of 2 mean when distilling ethanol?0.1120 g of a solid sample containing copper was dissolved by acid and transferred to a 250.00 mL volumetric flask and volume was made up with distilled water. The solution was then diluted by a factor of 25. The final solution was analyzed by atomic absorption spectrophotometry and the concentration was found be 2.982 ppm, What is the weight percentage of copper in the original solid sample? Keep four significant figures in your final answer.How is light and energy used in gas chromatography- mass spectrometry (GC-MS)?
- Can paper chromatography be used to separate and identify very volatile substances? Why? Please explain comprehensively.Explain why the concentration of zinc cannot be determined directly using a spectrophotometer.In spectophotometry, what should be done if there is a greater absorbance reading than the most concentrated solution?
- One method for quantitative determination of the concentration of constituents in a sample analyzed by gas chromatography is the area normalization method. In this method, complete elution of all of the sample constituents is necessary. The area of each peak is then measured and corrected for differences in detector response to the different eluates. This correction is accomplished by dividing the area by an empirically determined correction factor. The concentration of the analyte is found from the ratio of its corrected area to the total corrected area of all peaks. For a chromatogram containing three peaks, the relative areas were found to be 16.4, 45.2, and 30.2 in the order of increasing retention time. Calculate the percentage of each compound if the relative detector responses were 0.60, 0.78, and 0.88, respectivelyIn chromatography the concentration of a separated compound is directly related to a) stationary phase concentration b) absorbance c) wavelength d) peak areaHow can we use the observed colors to determine quantities and identities of materials? I am highly confused by spectrometry.