A UVisible spectrophotometer was zerced with distilled water at $10 nm, using a s The absorbances of four standard Co() solutions were then measured at the same table below indicates the data. Calculate the moler absorptivity (e) by considering ALL the dete in your calculation Col)] mol dm O 1.06-03 2.06-03 4.0E-03 8.06-03 Absorbansie / Absorbance 017 0.58 097

A UVisible spectrophotometer was zerced with distilled water at $10 nm, using a s The absorbances of four standard Co() solutions were then measured at the same table below indicates the data. Calculate the moler absorptivity (e) by considering ALL the dete in your calculation Col)] mol dm O 1.06-03 2.06-03 4.0E-03 8.06-03 Absorbansie / Absorbance 017 0.58 097

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Given the following size frequency for a dust: Size Interval (um) 7-17.5 17.5-21 21-25 25-28 28-30 30-33 33-36 36-41 41-49 49-70 % by Number 10 10 10 10 10 10 10 10 10 10 a. Plot the cumulative frequency distributions (in %) of the number, surface area, and mass on linear graph paper assuming all particles are spheres with Pp 1.6 g cm ³. = b. Is this a log-normally distributed dust?
0.1040 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 20. The final solution was analyzed by atomic absorption spectrophotometry and the concentration was found be 3.109 ppm, What is the weight percentage of copper in the original solid sample? Keep four significant figures in your final answer. Do not try to include the "%" in your answer. e.g. if your final answer is 10.01%, only write 10.01 in the box.
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Please find the absorbance and plot te calibration curve
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Blue Blue dye stock solution 0.293 M Absorbance at 630 nm 0.00265 Calibration curve y = 0.0833x A solution is prepared by diluting 2.81 mL of the blue dye stock solution to 25.00 mL. The measure absorbance for the prepared solution is listed in the data table. (a) What is the theoretical molar concentration? [Blue]theoretical | × 10 |M (b) What is the experimental molar concentration? [Bluelexperimental x 10 M (c) What is the percent error? Percent error (blue) =