Blue dye can be decolorized by treatment with bleach. The kinetics of the reaction can be studied by testing the absorbance of the solution over time. At the start of an experiment, the blue dye had a concentration of 9.05 x 10-6 M and an absorbance of 0.70 at the observed maximum wavelength. The path length of the cell is 1.00 cm. . 1st attempt What is the molar absorptivity of the blue dye? cm-¹M-1 What will the concentration of the blue dye be when the absorbance falls to 0.43? M lil See Periodic Table See Hint See Hint
Blue dye can be decolorized by treatment with bleach. The kinetics of the reaction can be studied by testing the absorbance of the solution over time. At the start of an experiment, the blue dye had a concentration of 9.05 x 10-6 M and an absorbance of 0.70 at the observed maximum wavelength. The path length of the cell is 1.00 cm. . 1st attempt What is the molar absorptivity of the blue dye? cm-¹M-1 What will the concentration of the blue dye be when the absorbance falls to 0.43? M lil See Periodic Table See Hint See Hint
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter3: Molecules, Moles, And Chemical Equations
Section: Chapter Questions
Problem 3.66PAE
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Transcribed Image Text:Blue dye can be decolorized by treatment with bleach. The kinetics of the reaction can be studied by testing the absorbance of the solution over time. At
the start of an experiment, the blue dye had a concentration of 9.05 x 10-6 M and an absorbance of 0.70 at the observed maximum wavelength. The path
length of the cell is 1.00 cm.
1st attempt
What is the molar absorptivity of the blue dye?
cm-¹M-1
What will the concentration of the blue dye be when the absorbance falls to 0.43?
M
. See Periodic Table
See Hint
See Hint
Transcribed Image Text:If a chemist wishes to dilute a 1.000 x 103 mg/L stock solution to prepare 5.000 × 10² mL of a working standard that has a concentration of
4.500 mg/L, what volume of the 1.000 x 10³ mg/L standard solution is needed?
mL
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