Answered: Ag 328.1 nm Fe 372.0 nm Au 267.6 nm K…

Chemistry for Today: General, Organic, and Biochemistry

9th Edition

ISBN:9781305960060

Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Chapter20: Enzymes

Section: Chapter Questions

Problem 20.43E

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Question

Certain elements emit light of a specific wavelength when
they are burned. Historically, chemists used such emission
wavelengths to determine whether specific elements were
present in a sample. Characteristic wavelengths for some of
the elements are given in the following table:(a) Determine which elements emit radiation in the visible
part of the spectrum. (b) Which element emits photons of
highest energy? Of lowest energy? (c) When burned, a sample
of an unknown substance is found to emit light of frequency
9.23 * 1014 s - 1. Which of these elements is probably in the
sample?

Ag
328.1 nm
Fe
372.0 nm
Au
267.6 nm
K
404.7 nm
Ва
455.4 nm
Mg
285.2 nm
Ca
422.7 nm
Na
589.6 nm
Cu
324.8 nm
Ni
341.5 nm

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