Data-Absorbance Curve 2, nm 480 490 500 510 520 530 540 550 Volume of Allura Red, Absorbance 0.723 A 0.842 A 0.887 A 0.860 A 0.805A 0.731 A Data Beer's Law ml Concentration of Allura Red, M Absorbance at max 0.606 A 0.434 A 8.00 Data-Unknowns 6.00 0.887 A 0.563 A 0.465 A 4.00 Unknown # Absorbance at 2 max 11 0.836 A λ, nm 560 570 580 590 600 2.00 Absorbance 0.231 A O. 104 A 0.039 A 0.019 A 0.006 A 0.243A
Data-Absorbance Curve 2, nm 480 490 500 510 520 530 540 550 Volume of Allura Red, Absorbance 0.723 A 0.842 A 0.887 A 0.860 A 0.805A 0.731 A Data Beer's Law ml Concentration of Allura Red, M Absorbance at max 0.606 A 0.434 A 8.00 Data-Unknowns 6.00 0.887 A 0.563 A 0.465 A 4.00 Unknown # Absorbance at 2 max 11 0.836 A λ, nm 560 570 580 590 600 2.00 Absorbance 0.231 A O. 104 A 0.039 A 0.019 A 0.006 A 0.243A
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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please please im begging please please answer images attached super super super fast i really need it before 11:40pm today please answer fast i would really appreciate it
Transcribed Image Text:Data-Absorbance Curve
λ, nm
480
490
500
510
520
530
540
550
Volume of
Allura Red,
Data Beer's Law
ml
Concentration
of Allura Red,
M
Absorbance
at λ
Absorbance
0.723 A
0.842 A
0.887 A
0.860 A
0.805 A
0.731 A
max
0.606 A
0.434 A
8.00
Data-Unknowns
6.00
0.887 A 0.563 A
Unknown # Absorbance at λ max
11
0.836 A
4.00
2, nm
560
570
580
590
600
2.00
Absorbance
0.231 A
O. 104 A
0.039 A
0.019 A
0.006 A
0.465 A 0.243A
![GRAPHS
Creating graphs with Excel (or a similar program) is preferred. Plot absorbance (y-axis) vs. λ (x-
axis) for the absorbance curve determined in part 2. Connect the points with a smooth curve.
Plot absorbance (y-axis) vs. concentration (x-axis) for the Beer's Law data from part 3. Draw a
best-fit line or use a program such as Excel and do a least-squares fit to determine the best-fit
line through the points. Attach your graphs to the yellow copies of your report from your
notebook.
CALCULATIONS
Show a sample calculation of the concentration of the solutions made by dilution. Also use the
slope of the best-fit line from your absorbance vs. concentration plot to calculate the
concentration of Allura Red in each unknown.
RESULTS
Unknown #
[Allura Red], M](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa833a647-b9ad-4697-b42a-39aaf6365497%2Fa2939e99-981b-4405-bb2c-7c2edee668a9%2Fipr6bbr_processed.png&w=3840&q=75)
Transcribed Image Text:GRAPHS
Creating graphs with Excel (or a similar program) is preferred. Plot absorbance (y-axis) vs. λ (x-
axis) for the absorbance curve determined in part 2. Connect the points with a smooth curve.
Plot absorbance (y-axis) vs. concentration (x-axis) for the Beer's Law data from part 3. Draw a
best-fit line or use a program such as Excel and do a least-squares fit to determine the best-fit
line through the points. Attach your graphs to the yellow copies of your report from your
notebook.
CALCULATIONS
Show a sample calculation of the concentration of the solutions made by dilution. Also use the
slope of the best-fit line from your absorbance vs. concentration plot to calculate the
concentration of Allura Red in each unknown.
RESULTS
Unknown #
[Allura Red], M
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