Homework Answers
Answer:
Yes, your all steps are correct. But for making graphs better to use origin or excel plot for an accurate answer.
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Hi,
I need to make sure evrything is correct. Also, if soemthing is
wrong then ahow...
Hi, I need checking on all the work. If anything is wrong then show me step...
Hi,
I need checking on all the work. If anything is wrong then show me
step by step how is done.
11. Obtain a Cu 2 solution of unknown concentration. Write the unknown number on the data sheet. 12. Measure the absorbance of your standard solution, the two dilutions, and the unknown solution. Record these readings on the data sheet. All measurements will be made in the same cuvette and with the instrument set at a wavelength of 630 nanometers...
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)...
help! i'm not sure how to go about this. ABSORBANCE PLOT DATA Please attach a copy...
help! i'm not sure how to go about this.
ABSORBANCE PLOT DATA Please attach a copy of your print out from the spectrophotometer, or indicate that it is attached to your lab partners report and give their name. ron A= emll Analytical wavelength used (=(A-b)lum CALIBRATION CURVE DATA Concentration of Stock Solution: 5.00 X 10 M Door Test Tube Volume Final Volume Final Stock Soln. Solution Concentration 1 2.00 10.0 Absorbance Trial 1 Absorbance Trial 2 2. 4.00 10.0 3...
Score pts Use the internet to determine what compounds used commonly in fireworks give specific colors,...
Score pts Use the internet to determine what compounds used commonly in fireworks give specific colors, list three compounds and the corresponding colors. Compound Color Stranium carbonate copper Chlonde blue Calcium chloride - OYOnDe red What are the energies () and wavelengths (in nm) for these colors? Color Energy wavelength red 700 nm orange 500nm blue Soonm ,2. (5 pts) Use the data provided below to prepare a Beer's law plot in Excel. Plot absorbance on the y axis and...
Preparing Dilute Solutions C1 V1 C2 V2 C1 is the concentration of the original concentrated solution...
Preparing Dilute Solutions C1 V1 C2 V2 C1 is the concentration of the original concentrated solution V1 is the volume of the original concentrated solution C2 is the concentration of the final dilute solution V2 is the volume of the final dilute solution A common solution unit is mol/L which can also be written as M. A solution that is 0.1 M NAOH has 0.1 moles Na OH for every liter of solution. Beer's Law Calibration Curve A colored solution...
LUIGIO ASSICUL Name CHEM 1090-General Chemistry Section Preparing Dilute Solutions C. V, - CV C is...
LUIGIO ASSICUL Name CHEM 1090-General Chemistry Section Preparing Dilute Solutions C. V, - CV C is the concentration of the original concentrated solution V1 is the volume of the original concentrated solution C is the concentration of the final dilute solution V2 is the volume of the final dilute solution Solution unit is mol/l which can also be written as M A solution that is 0.1 MNaonds A common solution unit is mol/l 0.1 moles NaOH for every liter of...
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...
1. Determining the Wavelength of Maximum Absorption: 2. Determining the concentration of an Unknown Solution Volume...
1. Determining the Wavelength of Maximum Absorption: 2. Determining the concentration of an Unknown Solution Volume of Stock Concentration of Soln #1 T2.001.xlon #2 5.00 2.5x loin . . x ^ 10.00 Soxom A=493.6 mm Rad y o sxlom Recorded Absorbance 0.212 0.528 0.947 1453 #4 Calibration Curve Slope of Least Squares Best Fit Line (molar abspoptivity, E) Equation for Least squares best fit line: A-42. Ubxk 2916xlor 6-01482 0.9652 Correlation Factor (R) for Least Squares Best Fit Line 3....
please help!!! please show work as i am so confused!! U U DUVJUJU. I LILI PIDU...
please help!!! please show work as i am so confused!!
U U DUVJUJU. I LILI PIDU 01 12. 14. The following reaction produces the deep blue tetraamminecopper(II) complex ion: Cu? (aq) + 4NH3(aq) 5 Cu(NH3)4** (aq) To determine the equilibrium constant for the reaction above, an equilibrium solution was prepared by mixing together 10.00 mL of a 0.0750 M Cu(NO)solution with 5.00 mL of a 0.600 M NH, solution The absorbance of the equilibrium solution was measured at a wavelength...
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...
Hi,
I need checking on all the work. If anything is wrong then show me
step by step how is done.
11. Obtain a Cu 2 solution of unknown concentration. Write the unknown number on the data sheet. 12. Measure the absorbance of your standard solution, the two dilutions, and the unknown solution. Record these readings on the data sheet. All measurements will be made in the same cuvette and with the instrument set at a wavelength of 630 nanometers...
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)...
help! i'm not sure how to go about this.
ABSORBANCE PLOT DATA Please attach a copy of your print out from the spectrophotometer, or indicate that it is attached to your lab partners report and give their name. ron A= emll Analytical wavelength used (=(A-b)lum CALIBRATION CURVE DATA Concentration of Stock Solution: 5.00 X 10 M Door Test Tube Volume Final Volume Final Stock Soln. Solution Concentration 1 2.00 10.0 Absorbance Trial 1 Absorbance Trial 2 2. 4.00 10.0 3...
Score pts Use the internet to determine what compounds used commonly in fireworks give specific colors, list three compounds and the corresponding colors. Compound Color Stranium carbonate copper Chlonde blue Calcium chloride - OYOnDe red What are the energies () and wavelengths (in nm) for these colors? Color Energy wavelength red 700 nm orange 500nm blue Soonm ,2. (5 pts) Use the data provided below to prepare a Beer's law plot in Excel. Plot absorbance on the y axis and...
Preparing Dilute Solutions C1 V1 C2 V2 C1 is the concentration of the original concentrated solution V1 is the volume of the original concentrated solution C2 is the concentration of the final dilute solution V2 is the volume of the final dilute solution A common solution unit is mol/L which can also be written as M. A solution that is 0.1 M NAOH has 0.1 moles Na OH for every liter of solution. Beer's Law Calibration Curve A colored solution...
LUIGIO ASSICUL Name CHEM 1090-General Chemistry Section Preparing Dilute Solutions C. V, - CV C is the concentration of the original concentrated solution V1 is the volume of the original concentrated solution C is the concentration of the final dilute solution V2 is the volume of the final dilute solution Solution unit is mol/l which can also be written as M A solution that is 0.1 MNaonds A common solution unit is mol/l 0.1 moles NaOH for every liter of...
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...
1. Determining the Wavelength of Maximum Absorption: 2. Determining the concentration of an Unknown Solution Volume of Stock Concentration of Soln #1 T2.001.xlon #2 5.00 2.5x loin . . x ^ 10.00 Soxom A=493.6 mm Rad y o sxlom Recorded Absorbance 0.212 0.528 0.947 1453 #4 Calibration Curve Slope of Least Squares Best Fit Line (molar abspoptivity, E) Equation for Least squares best fit line: A-42. Ubxk 2916xlor 6-01482 0.9652 Correlation Factor (R) for Least Squares Best Fit Line 3....
please help!!! please show work as i am so confused!!
U U DUVJUJU. I LILI PIDU 01 12. 14. The following reaction produces the deep blue tetraamminecopper(II) complex ion: Cu? (aq) + 4NH3(aq) 5 Cu(NH3)4** (aq) To determine the equilibrium constant for the reaction above, an equilibrium solution was prepared by mixing together 10.00 mL of a 0.0750 M Cu(NO)solution with 5.00 mL of a 0.600 M NH, solution The absorbance of the equilibrium solution was measured at a wavelength...
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