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Chem 152 Lab 6

Atomic Emission Spectroscopy (AES)

hydrogen discharge lamp and spectrometerIn the first part of this lab, you will observe and measure the emission lines in the visible region of the electromagnetic spectrum for hydrogen and helium, and will use the hydrogen data to investigate the Balmer-Rydberg equation.

In the second part of this experiment, you will conduct flame tests in which you will observe the emission characteristics of several elements and then identify the cations in solutions of unknown composition.



  • Prelab
    • Combined Intro and Materials & Procedure (pdf 266 KB, rev 7/29/13)
    • Required Prelab Assignment in Catalyst (due Tuesday 8/13 at 8:00 am) This assignment may be accessed using the link on the Labs page of your course website.
    • Review Materials & Procedure section of hte document provided above
    • Review Demonstration

  • In Lab
    • You do NOT need to print the intro/procedure document available above to bring to lab with you...hard copies will be provided by your TA at the start of the lab session.
    • Demonstration

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