1) Use the experimental data and the graph on the next page to construct a Beer's Law plot. 2) If an unknown Cu*2 solution has an absorbance of .62, a) Find its molarity graphically: A

Chemistry
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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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Can you please solve problems 1 and 2a & 2b. Can you please show your work for all three. For question 1 it asks to make a graph. You can make the graph on the grid paper. The experiemental data is also attached it asks for is also attached.

Beer's Law
1) Use the experimental data and the graph on the next
page to construct a Beer's Law plot.
Beer's Law Plot
2) If an unknown Cut2 solution has an absorbance of .62,
a) Find its molarity graphically:
1.40
1.20
1.00 -
A
0.80
0.60
0.40
0.20
0.00
b) Using the equation of a line:
.02
.04
.06
.08
.1
Concentration (M)
y = mx + b
Experimental Data:
[Cu*2]
.100 M
for Beer's Law, A = (slope)M + 0
Absorbance
1.20
So, M = A/slope
.080 M
0.97
Measure the slope from your graph:
.060 M
0.70
A
Ay
.040 M
0.50
Ax
.020 M
0.25
.000 M
0.00
Absorbance
Transcribed Image Text:Beer's Law 1) Use the experimental data and the graph on the next page to construct a Beer's Law plot. Beer's Law Plot 2) If an unknown Cut2 solution has an absorbance of .62, a) Find its molarity graphically: 1.40 1.20 1.00 - A 0.80 0.60 0.40 0.20 0.00 b) Using the equation of a line: .02 .04 .06 .08 .1 Concentration (M) y = mx + b Experimental Data: [Cu*2] .100 M for Beer's Law, A = (slope)M + 0 Absorbance 1.20 So, M = A/slope .080 M 0.97 Measure the slope from your graph: .060 M 0.70 A Ay .040 M 0.50 Ax .020 M 0.25 .000 M 0.00 Absorbance
Beer's Law Plot
Absorbance
[Cu*2] unknown: Method a =
Method b =
Transcribed Image Text:Beer's Law Plot Absorbance [Cu*2] unknown: Method a = Method b =
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