Homework Answers
All Absorbance value is below 1
this statement is wrong as all the absorbance values are more than 1
this not possible as absorbance will be equal to or greater than 1 only for very high concentration but concentration here is not that high
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Out of the options below, select all of the areas that are problems if you were...
Out of the options below, select all of the areas that are problems if you were...
Out of the options below, select all of the areas that are problems if you were to submit the graph shown above with your lab report. O R2 regression value shown O Each axis is clearly labeled O All absorbance values below 1 O Equation shown O Descriptive title
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...
3. Utilizing the data below to calculate the absorbances of your dilutions from part 2. Known...
3. Utilizing the data below to calculate the absorbances of your dilutions from part 2. Known Concentration % Transmittance 0.20 0 0.18 13 0.16 0.14 16 20.1 26 0.12 4. Type your concentrations into the data table below. Generate a graph of your dilution data from part 2 above. Absorbance Solution Concentration OM (blank) 4 When finished, start calculating the data below, based on your dilution data from part 2. Perform the best linear regression using Graphing calculator or Excel...
Analysis of Co?by Spectrophotometry 3. Utilizing the data below to calculate the absorbances of your dilutions...
Analysis of Co?by Spectrophotometry 3. Utilizing the data below to calculate the absorbances of your dilutions from part 2 % Transmittance This exam involves using best practices to analyze a Counknown solution. Multiple working standard solutions will be prepared bydiluting a stock solution of Cocle The 0.200M stock solution will be the highest concentration standard it has been analyzed to give the table (below) of absorbances as a function of wavelength. This analysis will be done by spectrophotometry. Measurements are...
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...
*JUST NEED 3 and 4 ANSWERED THANKS* 1. Explore the data: create a scatterplot . 1a....
*JUST NEED 3 and 4 ANSWERED THANKS*
1. Explore the data: create a scatterplot
. 1a. Type the data into a blank SPSS spreadsheet. Name
variables as Distance and Snowfall respectively. Go to
Graphs-Legacy Dialogs-Scatter/Dot-Simple Scatter-Define. In the
window that follows, select Distance into X axis and Snowfall into
Y axis. Click on OK.
1b.Double click on the scatter plot to activate it. Double click
on the horizontal axis and select the Scale tab. At Auto, uncheck
all boxes. At...
Font Paragraph 2. You are provided 50.0 mL of the 0.200M CoCl2 stock solution. With this...
Font Paragraph 2. You are provided 50.0 mL of the 0.200M CoCl2 stock solution. With this stock solution prepare 5 dilutions to produce a series of known concentration solutions. Show all dilution calculations below. Type or draw the equations and solution concentrations. (10) 3. Utilizing the data below to calculate the absorbances of your dilutions from part 2. Known Concentration % Transmittance 0.20 0 0.18 13 0.16 16 0.14 20.1 0.12 26 4. Type your concentrations into the data table...
2 problems including answer options [Review Topics) [References) In each case below select the synthetic procedure/s...
2 problems including answer options
[Review Topics) [References) In each case below select the synthetic procedure/s that could be used to carry out the transformation, giving the alcohol shown as the single major product. The procedures are: Hydroboration oxidation: alkene +BH3, then H,02, "OH. Oxymercuration: alkene + Hg(OAc)2, H2O, then NaBH4 OH a- CH3 CH3 Submit Answer Retry Entire Group 4 more group attempts remaining thetic procedure/s that could be used to carry out the transformation, + BHz; then H202,...
Can someone double check if the (Fe(SNC)2+ was calculated correctly for the B concentrations? calibration curve...
Can someone double check if
the (Fe(SNC)2+ was calculated correctly for the B concentrations?
calibration curve equation was y=2834x+0.0293. Feel free to please
double check the work from A as well
I. Experiment V: Equilibrium Constant Lab Report ( 50 pts) Calibration Curve 1. Record the absorbance for each of the standard solutio sorbance for each of the standard solutions in the table below. Calculate the of Fe(SCN)2* in each of the standard solutions and record the values in the...
Just need question 2a-e answered. Thanks! 1. Explore the data: create a scatterplot. 1a. Type the...
Just need question 2a-e answered. Thanks!
1. Explore the data: create a scatterplot. 1a. Type the data
into a blank SPSS spreadsheet. Name variables as Distance and
Snowfall respectively. Go to Graphs-Legacy
Dialogs-Scatter/Dot-Simple Scatter-Define. In the window that
follows, select Distance into X axis and Snowfall into Y axis.
Click on OK. 1b.Double click on the scatter plot to activate it.
Double click on the horizontal axis and select the Scale tab. At
Auto, uncheck all boxes. At Custom, set...
Out of the options below, select all of the areas that are problems if you were to submit the graph shown above with your lab report. O R2 regression value shown O Each axis is clearly labeled O All absorbance values below 1 O Equation shown O Descriptive title
3. Utilizing the data below to calculate the absorbances of your dilutions from part 2. Known Concentration % Transmittance 0.20 0 0.18 13 0.16 0.14 16 20.1 26 0.12 4. Type your concentrations into the data table below. Generate a graph of your dilution data from part 2 above. Absorbance Solution Concentration OM (blank) 4 When finished, start calculating the data below, based on your dilution data from part 2. Perform the best linear regression using Graphing calculator or Excel...
Analysis of Co?by Spectrophotometry 3. Utilizing the data below to calculate the absorbances of your dilutions from part 2 % Transmittance This exam involves using best practices to analyze a Counknown solution. Multiple working standard solutions will be prepared bydiluting a stock solution of Cocle The 0.200M stock solution will be the highest concentration standard it has been analyzed to give the table (below) of absorbances as a function of wavelength. This analysis will be done by spectrophotometry. Measurements are...
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...
*JUST NEED 3 and 4 ANSWERED THANKS*
1. Explore the data: create a scatterplot
. 1a. Type the data into a blank SPSS spreadsheet. Name
variables as Distance and Snowfall respectively. Go to
Graphs-Legacy Dialogs-Scatter/Dot-Simple Scatter-Define. In the
window that follows, select Distance into X axis and Snowfall into
Y axis. Click on OK.
1b.Double click on the scatter plot to activate it. Double click
on the horizontal axis and select the Scale tab. At Auto, uncheck
all boxes. At...
Font Paragraph 2. You are provided 50.0 mL of the 0.200M CoCl2 stock solution. With this stock solution prepare 5 dilutions to produce a series of known concentration solutions. Show all dilution calculations below. Type or draw the equations and solution concentrations. (10) 3. Utilizing the data below to calculate the absorbances of your dilutions from part 2. Known Concentration % Transmittance 0.20 0 0.18 13 0.16 16 0.14 20.1 0.12 26 4. Type your concentrations into the data table...
2 problems including answer options
[Review Topics) [References) In each case below select the synthetic procedure/s that could be used to carry out the transformation, giving the alcohol shown as the single major product. The procedures are: Hydroboration oxidation: alkene +BH3, then H,02, "OH. Oxymercuration: alkene + Hg(OAc)2, H2O, then NaBH4 OH a- CH3 CH3 Submit Answer Retry Entire Group 4 more group attempts remaining thetic procedure/s that could be used to carry out the transformation, + BHz; then H202,...
Can someone double check if
the (Fe(SNC)2+ was calculated correctly for the B concentrations?
calibration curve equation was y=2834x+0.0293. Feel free to please
double check the work from A as well
I. Experiment V: Equilibrium Constant Lab Report ( 50 pts) Calibration Curve 1. Record the absorbance for each of the standard solutio sorbance for each of the standard solutions in the table below. Calculate the of Fe(SCN)2* in each of the standard solutions and record the values in the...
Just need question 2a-e answered. Thanks!
1. Explore the data: create a scatterplot. 1a. Type the data
into a blank SPSS spreadsheet. Name variables as Distance and
Snowfall respectively. Go to Graphs-Legacy
Dialogs-Scatter/Dot-Simple Scatter-Define. In the window that
follows, select Distance into X axis and Snowfall into Y axis.
Click on OK. 1b.Double click on the scatter plot to activate it.
Double click on the horizontal axis and select the Scale tab. At
Auto, uncheck all boxes. At Custom, set...
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