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Hydrogen Atom ILA. Use your calibration curve to find the corrected wavelength for the hydrogen atom Corrected wavelength (nm) Observed wavelength (nm)

Hydrogen Atom ILA. Use your calibration curve to find the corrected wavelength for the hydrogen atom Corrected wavelength (nm) Observed wavelength (nm)

Principles of Instrumental Analysis
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter8: An Introduction To Optical Atomic Spectrometry
Section: Chapter Questions
Problem 8.8QAP: The Doppler effect is one of the sources of the line broadening in atomic absorption spectroscopy....
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96 EXPERIMENT 0 The Emission Spectra of Aloms and lons Analysis for Parts I and II: 1. Calibration The scale on the spectroscope may not reflect the correct wavelength of light. To correct for this, you will make what is called a calibration curve. For each line in the mercury spectrum that you observed, write the wavelength at which you observed it in the columh on the left, and the "litera- ture" value (given in figure 8-2) in the column on the right. Literature wavelength (nm) 404.7nn 435.8nm 546.1nm Observed wavelength (nm) 450nm am s74 onm Now make a plot of the data above, with the observed wavelength on the x-axis and the lit- erature wavelength on the y-axis. Draw the best possible straight line through the points. Attach this plot to your laboratory report. Now, when you analyze the rest of your data, use this curve to correct it. Find the value on the x-axis that corresponds to your observed value, and use your curve to find the corresponding y-value. The y-value is the corrected wavelength and should most accurately reflect your observed value. Tip: See Appendix A for instructions on how to make a good plot. You can use Excel or a similar spreadsheet to make your plot. These programs have options that will allow you to draw a smooth line through your data. Hydrogen Atom Emission Spectrum II.A. Use your calibration curve to find the corrected wavelength for the hydrogen atom. Corrected Observed wavelength (nm) wavelength (nm)
Transcribed Image Text:96 EXPERIMENT 0 The Emission Spectra of Aloms and lons Analysis for Parts I and II: 1. Calibration The scale on the spectroscope may not reflect the correct wavelength of light. To correct for this, you will make what is called a calibration curve. For each line in the mercury spectrum that you observed, write the wavelength at which you observed it in the columh on the left, and the "litera- ture" value (given in figure 8-2) in the column on the right. Literature wavelength (nm) 404.7nn 435.8nm 546.1nm Observed wavelength (nm) 450nm am s74 onm Now make a plot of the data above, with the observed wavelength on the x-axis and the lit- erature wavelength on the y-axis. Draw the best possible straight line through the points. Attach this plot to your laboratory report. Now, when you analyze the rest of your data, use this curve to correct it. Find the value on the x-axis that corresponds to your observed value, and use your curve to find the corresponding y-value. The y-value is the corrected wavelength and should most accurately reflect your observed value. Tip: See Appendix A for instructions on how to make a good plot. You can use Excel or a similar spreadsheet to make your plot. These programs have options that will allow you to draw a smooth line through your data. Hydrogen Atom Emission Spectrum II.A. Use your calibration curve to find the corrected wavelength for the hydrogen atom. Corrected Observed wavelength (nm) wavelength (nm)
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