Solution 1 0.8- Solution 2 0.6- 0.4- 0.2- 0.0 100 200 300 400 Wavelength (nm) UV-Visible spectroscopy was used to compare the two solutions (1 and 2). The first solution was green, whereas the second was yellow. The same axes were used to capture each solution throughout a variety of wavelengths. Above is an example of the resulting absorbance spectrum. (i). Ten (10) mL of solution 1 were mixed with 10 mL of solution 2 based on the UV-VIS spectrum. Describe the wavelength that should be used to measure the absorbance of solution 1 in this mixture. 1.0- 0.8- 0.6- 0.4- 2 0.2 - 0.0 4 Concentration (mM) Using two sets of standard solutions and blanks, the calibration curves for the two solutions were later obtained. As indicated in the graph above, the absorbances of both solutions were plotted on the same axis. When tested at the suitable wavelength, solution 1 showed a 0.4 absorbance. If solution 1 was chromium (III) sulfate, Cr2(SO4)3 explain the method of getting the concentration of the solution in mg L-1. [Mw Cr2(SO4)3 = 392.2 g mol-1] (iii). Both solutions have a concentration of around 3.5 x 10-3 M in a separate combination. Explain how UV-VIS spectroscopy may be used to reliably detect the concentrations of solution 1 and solution 2. Absorbance Absorbance
Solution 1 0.8- Solution 2 0.6- 0.4- 0.2- 0.0 100 200 300 400 Wavelength (nm) UV-Visible spectroscopy was used to compare the two solutions (1 and 2). The first solution was green, whereas the second was yellow. The same axes were used to capture each solution throughout a variety of wavelengths. Above is an example of the resulting absorbance spectrum. (i). Ten (10) mL of solution 1 were mixed with 10 mL of solution 2 based on the UV-VIS spectrum. Describe the wavelength that should be used to measure the absorbance of solution 1 in this mixture. 1.0- 0.8- 0.6- 0.4- 2 0.2 - 0.0 4 Concentration (mM) Using two sets of standard solutions and blanks, the calibration curves for the two solutions were later obtained. As indicated in the graph above, the absorbances of both solutions were plotted on the same axis. When tested at the suitable wavelength, solution 1 showed a 0.4 absorbance. If solution 1 was chromium (III) sulfate, Cr2(SO4)3 explain the method of getting the concentration of the solution in mg L-1. [Mw Cr2(SO4)3 = 392.2 g mol-1] (iii). Both solutions have a concentration of around 3.5 x 10-3 M in a separate combination. Explain how UV-VIS spectroscopy may be used to reliably detect the concentrations of solution 1 and solution 2. Absorbance Absorbance
Chapter3: Statistical Tests With Excel
Section: Chapter Questions
Problem 4P
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Question
Kindly answer this question i, ii & iii
![Solution 1
0.8-
Solution 2
0.6-
0.4-
0.2-
0.0 +
100
200
300
400
Wavelength (nm)
UV-Visible spectroscopy was used to compare the two solutions (1 and 2).
The first solution was green, whereas the second was yellow. The same axes
were used to capture each solution throughout a variety of wavelengths.
Above is an example of the resulting absorbance spectrum.
(i). Ten (10) mL of solution 1 were mixed with 10 mL of solution 2 based on
the UV-VIS spectrum. Describe the wavelength that should be used to
measure the absorbance of solution 1 in this mixture.
1.0 -
0.8-
0.6-
0.4-
0.2 -
0.0
Concentration (mM)
Using two sets of standard solutions and blanks, the calibration curves
for the two solutions were later obtained. As indicated in the graph
above, the absorbances of both solutions were plotted on the same
axis. When tested at the suitable wavelength, solution 1 showed a 0.4
absorbance. If solution 1 was chromium (III) sulfate, Cr2(SO4)3 explain
the method of getting the concentration of the solution in mg L-1. [Mw
Cr2(SO4)3 = 392.2 g mol-1]
(iii). Both solutions have a concentration of around 3.5 x 10-3 M in a separate
combination. Explain how UV-VIS spectroscopy may be used to reliably
detect the concentrations of solution 1 and solution 2.
Absorbance
Absorbance](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd67fd779-9a67-45d3-a93e-6c4ca8de8554%2F7bb2027b-4149-4ba5-a454-0fdc01c28f7c%2Ftsm7ifr_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Solution 1
0.8-
Solution 2
0.6-
0.4-
0.2-
0.0 +
100
200
300
400
Wavelength (nm)
UV-Visible spectroscopy was used to compare the two solutions (1 and 2).
The first solution was green, whereas the second was yellow. The same axes
were used to capture each solution throughout a variety of wavelengths.
Above is an example of the resulting absorbance spectrum.
(i). Ten (10) mL of solution 1 were mixed with 10 mL of solution 2 based on
the UV-VIS spectrum. Describe the wavelength that should be used to
measure the absorbance of solution 1 in this mixture.
1.0 -
0.8-
0.6-
0.4-
0.2 -
0.0
Concentration (mM)
Using two sets of standard solutions and blanks, the calibration curves
for the two solutions were later obtained. As indicated in the graph
above, the absorbances of both solutions were plotted on the same
axis. When tested at the suitable wavelength, solution 1 showed a 0.4
absorbance. If solution 1 was chromium (III) sulfate, Cr2(SO4)3 explain
the method of getting the concentration of the solution in mg L-1. [Mw
Cr2(SO4)3 = 392.2 g mol-1]
(iii). Both solutions have a concentration of around 3.5 x 10-3 M in a separate
combination. Explain how UV-VIS spectroscopy may be used to reliably
detect the concentrations of solution 1 and solution 2.
Absorbance
Absorbance
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