Prepare a Beer’s Law plot of Absorbance versus Concentration of the Fe(SCN)2+ standards Prepare a...

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Prepare a Beer’s Law plot of Absorbance versus Concentration of the Fe(SCN)2+ standards Prepare a Beer’s Law plot of Absorbance versus Concentration of the Fe(SCN)2+ standards

samples #1-5. Show one sample calculation of a Fe(SCN)2+ standard. Perform a linear Prepare a Beer’s Law plot of Absorbance versus Concentration of the Fe(SCN)2+ standards

samples #1-5. Show one sample calculation of a Fe(SCN)2+ standard. Perform a linear

regression including R2 and add this information on the data plot. Include a data table of

absorbance and concentration that was used to create the plot. Prepare a Beer’s Law plot of Absorbance versus Concentration of the Fe(SCN)2+ standards

samples #1-5. Show one sample calculation of a Fe(SCN)2+ standard. Perform a linear

regression including R2 and add this information on the data plot. Include a data table of

absorbance and concentration that was used to create the plotregression including R2 and add this information on the data plot. Include a data table of the lab questions are all the way at the bottom
absorbance and concentration that was used to create the plotsamples #1-5. Show one sample calculation of a Fe(SCN)2+ standard. Perform a linear Prepare a Beer’s Law plot of Absorbance versus Concentration of the Fe(SCN)2+ standards

samples #1-5. Show one sample calculation of a Fe(SCN)2+ standard. Perform a linear

regression including R2 and add this information on the data plot. Include a data table of

absorbance and concentration that was used to create the plotregression including R2 and add this information on the data plot. Include a data table of

absorbance and concentration that was used to create the plot

lab-5-chem-kwyttfcc.pdf

Dr Shweta · Accepted Answer

1. Write a detailed procedure to accurately determine which wavelength/LED colour setting you will use on the Vernier GoDirectTM Colorimeter https://www.vernier.com/product/go-directcolorimeter/ to measure Absorbance of Fe (SCN)2+.
Ans. The detailed procedure to accurately determine which wavelength/LED colour setting we will use on the Vernier GoDirectTM Colorimeter to measure the Absorbance of Fe (SCN)2+ is as follows: 
step 1:  Take a clean cuvette, fill it with water, this will act as blank or standard. Set a wavelength and measure its absorbance. 
Step 2: Now without changing the wavelength, put sample of Fe (SCN)2+ is another clean cuvette measure the absorbance.
step 3. Now change the wavelength and measure absorbance of blank and sample again.
Step 4: Repeat this process for 5 different wavelengths 
Step 5: Plot a graph between different wavelength and their respective absorbance using a table like this: 
	Wavelength 
	Absorbance (blank)
	Sample 
	1
	
	
	2
	
	
	3
	
	
	4
	
	
	5
	
	
 The wavelength Ʌm at which we obtained maximum absorbance, is our wavelength of interest that we use for our experiment. 
Q.1 Prepare a Beer’s Law plot of Absorbance versus Concentration of the Fe (SCN)2+ standards samples #1-5. Show one sample calculation of a Fe (SCN)2+ standard. Perform a linear regression including R2 and add this information on the data plot. Include a data table of absorbance and concentration that was used to create the plot.
Beer’s Law plot of Absorbance versus Concentration of the Fe (SCN)2+ standards samples #1-5.
	Sample No.
	Sample Concentration
	% Transmittance (recorded)
	Absorbance (A = 2 − [log (% T)])
	1
	  0.09 M
	26.4
	0.578
	2
	0.03M
	73.7
	 0.

Prepare a Beer’s Law plot of Absorbance versus Concentration of the Fe(SCN)2+ standards Prepare a Beer’s Law plot of Absorbance versus Concentration of the Fe(SCN)2+ standards samples #1-5. Show one...

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