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Need a graph with the absorbance and the concentration plotted with
the x and y axis...
PROCEDURE A. ABSORBANCE SPECTRA 1. Obtain three cuvettes. Add-2mL of the following samples to them: red...
PROCEDURE A. ABSORBANCE SPECTRA 1. Obtain three cuvettes. Add-2mL of the following samples to them: red dye, blue dye, yellow dye. 2. Obtain a spectrum for each dye according to the provided directions (water is the blank). 3. For each of the three dyes (red, yellow, and blue) record the wavelength for the largest peak in the visible range (380 nm to 750 nm), Record this in the data table below. Save the red dye for part B. 4. Identify...
Question 5 1 pts Keep in mind that the absorbance was plotted on the y-axis and...
Question 5 1 pts Keep in mind that the absorbance was plotted on the y-axis and concentration of Fe in mg/mL was plotted on x-axis to get best-fit line equation from the standard solutions. If the best fit line equation is y = 100x +0.01 What is the Fe concentration in mg/mL if the absorbance is 0.4 based on the best-fit line equation? Keep two sig figs for your answer. The Total Cereal has a Fe concentration of 0.6 g...
0 0.051 6.4 0.164 12.9 0.28 19.3 0.382 25.7 0.499 Graph Absorbance (y-axis) vs Concentration (x-axis)....
0 0.051 6.4 0.164 12.9 0.28 19.3 0.382 25.7 0.499 Graph Absorbance (y-axis) vs Concentration (x-axis). What is the slope of the line? What is the concentration of the solution if the solution is 0.317? what would be the Absorptivity (ɛ) of the substance if the path length of the cuvette, b = 1 cm?
Create a calibration graph Make sure that on your data table appears the correct number of...
Create a calibration graph
Make sure that on your data table appears the correct number of significant figures! Solution Blank (diH2O) Absorbance y 0 Concentration (grams/mL) X 0 0.3708 0.185 Stock Diluted Solution #1 0.595 A 0.303A 0.150 A 0.074 Diluted Solution #2 Diluted Solution #3 Unknown 0.093 0.047 To be determined using Calibration Graph 0.68A Plot 2 Calibration Graphs 1) Use graph paper (on page 26) to create a calibration graph by hand. (Instructions are on page 27.) 2)...
using microsoft excel, plot the absorbance (y-axis) vs. the concentration of each FAS standard standard (in g/ml) Use the method of least squares (linear regression) to determine the slope, intercept,...
using microsoft excel, plot the absorbance (y-axis) vs. the concentration of each FAS standard standard (in g/ml) Use the method of least squares (linear regression) to determine the slope, intercept, and correlation coefficient. Compare your slope with the literature value of 11,100 liter*mol^-1*cm^-1. You will have to convert your slope to have the same units as the literature value. Please do this unit conversion in your notebook. (FW FAS=392.13) Absorbance was read at 508 nm in a 1 cm curvette....
PLEASE HELP! 1. Solve for concentration (x) using your best fit line from the graph (y=mx+b) 2....
PLEASE HELP!
1. Solve for concentration (x) using your best fit
line from the graph (y=mx+b)
2. What is the concentration of your unknown solution in
mM?
3. What is the molar absorptivity (ϵ) of the drink mix? (In
units of mM-1 cm-1)
Table 1: Red 40 Dye Solution [Red 40), M 0.1000 0.0800 0.0500 0.0200 0.0000 Absorbance, AU 0.348 0.295 0.147 0.075 0 Blank Analytical A, nm: Unknown No: Unknown Abs: Slope of B-L Plot: Int'pt of Plot: [Red 40)...
Prelaboratory assignment Exp. 4 Beer’s Law 1.Calculate the Concentration of the Crystal Violet Solutions in Table...
Prelaboratory assignment Exp. 4 Beer’s Law
1.Calculate the Concentration of the Crystal Violet Solutions in
Table 1 of the Procedureusing Vinitial x Minitial = Vdiluted x
Mdiluted (Note: Vdiluted = 15 mL). Record the concentrationsin
Table 1 AND in the Data table in the report sheet.
2.Plot the following data as absorbance vs concentration of X in
excel
Absorbance, A Molar Concentration of X
0.045 3.0 x 10-4 mol/L
0.097 6.2 x 10-4 mol/L
0.14 9.0 x 10-4 mol/L...
I need help doing just the questions, not the graph or the conclusion F17 MATERIALS 0.12...
I
need help doing just the questions, not the graph or the
conclusion
F17 MATERIALS 0.12 g [Fe(phen)3]Cl2 (student's red crystals from the previous experiment) 0.5 mL unknown [Fe(phen)3]Cl2 solution 175 mL DI water A. Series of Dilutions: Concentration of stock solution 3.15x103M 105gx mol 667.354 IL 0.05004 Concentrations of the series of dilutions Solution Concentration 0.2/25 2.52x10m 0.4/25 5.04×105m 0.6/25 7.56 X10 sm 0.8/25 1.0088 10" 1.0/25 1.26x10 "m Abs atmas 0.20_ Unknown 514nm 0.52 1.42 Solution 0.2/25 0.4/25...
Section 1 Tube [FeSCN^+] M Absorbance 1 0.0005 0.016 2 0.0011 0.0422 3 0.00367 0.0917 4...
Section 1 Tube [FeSCN^+] M Absorbance 1 0.0005 0.016 2 0.0011 0.0422 3 0.00367 0.0917 4 0.00727 0.224 5 0.00965 0.267 6 0.0137 0.398 Part B unknown sol. 0.175 SCENARIO: Five standard solutions containing different known concentrations of an iron (II) thiocyanate (FeSCN+ ) complex are analyzed using spectrophotometry, a technique which measures the quantity of light absorbed by the solution as a function of the concentration of the analyte in solution (in this case, FeSCN+ ). The results of...
Can someone explain to me two possible objectives of this lab? Thank you Part B: Determining...
Can someone explain to me two possible objectives of this lab?
Thank you
Part B: Determining the Concentration of a Solution: Beer's Law The objective of this experiment is to determine the concentration of an unknow sulfate (Ns04) known concentrations (standard solutions) An aliuot of each selution is tranaferred to a small rectangular cuvette that is placed into the solution and etry You are to prepare ive Ni504 solutions of ometer. The amount of Light that ) solution through use...
PROCEDURE A. ABSORBANCE SPECTRA 1. Obtain three cuvettes. Add-2mL of the following samples to them: red dye, blue dye, yellow dye. 2. Obtain a spectrum for each dye according to the provided directions (water is the blank). 3. For each of the three dyes (red, yellow, and blue) record the wavelength for the largest peak in the visible range (380 nm to 750 nm), Record this in the data table below. Save the red dye for part B. 4. Identify...
Question 5 1 pts Keep in mind that the absorbance was plotted on the y-axis and concentration of Fe in mg/mL was plotted on x-axis to get best-fit line equation from the standard solutions. If the best fit line equation is y = 100x +0.01 What is the Fe concentration in mg/mL if the absorbance is 0.4 based on the best-fit line equation? Keep two sig figs for your answer. The Total Cereal has a Fe concentration of 0.6 g...
Create a calibration graph
Make sure that on your data table appears the correct number of significant figures! Solution Blank (diH2O) Absorbance y 0 Concentration (grams/mL) X 0 0.3708 0.185 Stock Diluted Solution #1 0.595 A 0.303A 0.150 A 0.074 Diluted Solution #2 Diluted Solution #3 Unknown 0.093 0.047 To be determined using Calibration Graph 0.68A Plot 2 Calibration Graphs 1) Use graph paper (on page 26) to create a calibration graph by hand. (Instructions are on page 27.) 2)...
PLEASE HELP!
1. Solve for concentration (x) using your best fit
line from the graph (y=mx+b)
2. What is the concentration of your unknown solution in
mM?
3. What is the molar absorptivity (ϵ) of the drink mix? (In
units of mM-1 cm-1)
Table 1: Red 40 Dye Solution [Red 40), M 0.1000 0.0800 0.0500 0.0200 0.0000 Absorbance, AU 0.348 0.295 0.147 0.075 0 Blank Analytical A, nm: Unknown No: Unknown Abs: Slope of B-L Plot: Int'pt of Plot: [Red 40)...
Prelaboratory assignment Exp. 4 Beer’s Law
1.Calculate the Concentration of the Crystal Violet Solutions in
Table 1 of the Procedureusing Vinitial x Minitial = Vdiluted x
Mdiluted (Note: Vdiluted = 15 mL). Record the concentrationsin
Table 1 AND in the Data table in the report sheet.
2.Plot the following data as absorbance vs concentration of X in
excel
Absorbance, A Molar Concentration of X
0.045 3.0 x 10-4 mol/L
0.097 6.2 x 10-4 mol/L
0.14 9.0 x 10-4 mol/L...
I
need help doing just the questions, not the graph or the
conclusion
F17 MATERIALS 0.12 g [Fe(phen)3]Cl2 (student's red crystals from the previous experiment) 0.5 mL unknown [Fe(phen)3]Cl2 solution 175 mL DI water A. Series of Dilutions: Concentration of stock solution 3.15x103M 105gx mol 667.354 IL 0.05004 Concentrations of the series of dilutions Solution Concentration 0.2/25 2.52x10m 0.4/25 5.04×105m 0.6/25 7.56 X10 sm 0.8/25 1.0088 10" 1.0/25 1.26x10 "m Abs atmas 0.20_ Unknown 514nm 0.52 1.42 Solution 0.2/25 0.4/25...
Can someone explain to me two possible objectives of this lab?
Thank you
Part B: Determining the Concentration of a Solution: Beer's Law The objective of this experiment is to determine the concentration of an unknow sulfate (Ns04) known concentrations (standard solutions) An aliuot of each selution is tranaferred to a small rectangular cuvette that is placed into the solution and etry You are to prepare ive Ni504 solutions of ometer. The amount of Light that ) solution through use...
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Attribute
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Sample Value
Sample Value
Sample Value
pirate_num
11
22
43
54
pirate_lname
James...
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