Spectrophotometric Determination of Equilibrium Constant

Authors

  • Atri D Tripathi Dept. of Chemistry, Faculty of Engineering, Teerthanker Mahaveer University, Moradabad, Uttar Pradesh 244001, India.
  • Navneet Kumar Dept. of Chemistry, Faculty of Engineering, Teerthanker Mahaveer University, Moradabad, Uttar Pradesh 244001, India.

DOI:

https://doi.org/10.48165/

Keywords:

Spectrophotometer, Equilibrium Constant, Calibration, Absorption, Standard Solutions

Abstract

The main purpose of the experiment is to obtain  Keq's value of an unknown solution. It was obtained by means of a calibration graph by  plotting the concentration of FeSCN2+ ions vs. its  absorbance. Formed the best fit line acted as the  graph of calibration. The unknown solution's  measured absorbance was then plugged into the  y variable in the best fit line equation in order to  get the concentration of FeSCN2+ at equilibrium. 

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References

Masterton, W.L.; Hurley, C.N. Chemistry: Principles and Reactions, 3rd ed.; Saunders College Publishing: Florida, 1997; pp 361-363.

The University of Adelaide, Australia: Department of Chemistry. Beer-Lambert Law. http://www.chemistry.adelaide.edu.au/ external/soc-rel/content/beerslaw.htm (accessed Jan 24, 2013).

Clark J. The Beer Lambert Law. Retrieved from http://www.chemguide.co.uk/analysis/uvvisible/beerlambert.html.

National Aeronautics and Space Administration (NASA). What Wavelength Goes With Color? http://scienceedu.larc.nasa.gov/EDDOCS/Wavelengths_for_C olors.html (accessed Jan 24, 2013)

Davidson College Chemistry Resources. Spectrophotometry. http://scienceedu .larc.nasa.gov/EDDOCS/Wavelengths_for_C olors.html (accessed Jan 24, 2013) 6. SimuLab Resources and Training Room. Study Notes: Analytical Wavelength. http://toolboxes.flexiblelearning.net.au/demosites/series5/

/laboratory/studynotes/snAnalyWavelength.htm (accessed Jan 25, 2013)

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Published

2020-05-12

Issue

Vol. 39 No. 1 (2020): Bulletin of Pure and Applied Sciences Chemistry (Jan-Jun) 2020

Section

Articles

How to Cite

Spectrophotometric Determination of Equilibrium Constant . (2020). Bulletin of Pure and Applied Sciences-Chemistry , 39(1), 14–20. https://doi.org/10.48165/