Name:Due: Wed., 3/1/23AP Chemistry11. A student is instructed to determine the concentration of a solution of CoCl2₂ based onabsorption of light (spectrometric/colorimetric method). The student is provided with a 0.10M solution of CoCl₂ with which to prepare standard solutions with concentrations of 0.020 M,0.040 M, 0.060 M and 0.080 M. (d) Beer's Law is an expression that includes three factors that determine the amount of light thatpasses through a solution. Identify two of these factors.(e) The student handles the sample container (e.g., test tube or cuvette) that holds the unknownsolution and leaves fingerprints in the path of the light beam. How will this affect thecalculated concentration of the unknown? Explain your answer.(f) Why is this method of determining the concentration of CoCl₂ solution appropriate, whereasusing the same method for measuring the concentration of NaCl solution would not beappropriate?

A student is instructed to determine the concentration of a solution of CoCl2 based on absorption of light (spectrometric/colorimetric method). The student is provided with a 0.10 M solution of CoCl₂ with which to prepare standard solutions with concentrations of 0.020 M, 0.040 M, 0.060 M and 0.080 M.

A student is instructed to determine the concentration of a solution of CoCl2 based on absorption of light (spectrometric/colorimetric method). The student is provided with a 0.10 M solution of CoCl₂ with which to prepare standard solutions with concentrations of 0.020 M, 0.040 M, 0.060 M and 0.080 M.

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section4.8: Stoichiometry Of Reactions In Aqueous Solution-titrations

Problem 2RC

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