Goals

• Understand the relationships between energy, wavelength, and frequency of electromagnetic radiation.
• Investigate the visible spectrum of hydrogen.
• Investigate the visible spectra of the following ions by flame test: Na⁺, Ba²⁺, Ca²⁺, Sr²⁺, and K⁺.

Objectives

• Identify the spectral lines of hydrogen that fall in the visible region.
• Analyze an unknown solution containing one of the ions listed above.
• Use the Rydberg equation in calculating E for electronic transitions occurring in an atom containing only one electron.

References

Zumdahl, Chemistry, 6th Edition, 290-299 and A18-A21. See also Figures 7.7 and 7.8 in Sections 7.3 and 7.4 of this text.

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