(CEB 4032) ANALYTICAL CHEMISTRY: Atomic Spectroscopy
Authored by aminah solehah
Chemistry
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
When talking about energy levels in an atom, what is an "excited state"?
The highest energy state of an atom.
Any level higher than the ground state.
The lowest energy state of an atom.
2.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
What is the temperature range at which samples are vaporized in atomic spectroscopy?
1000 - 1500 K
10 - 1000 K
2000 - 6000 K
500 - 800 K
3.
MULTIPLE SELECT QUESTION
45 sec • 10 pts
Which of the following are benefits of the AAS process?
The detection of mercury ions in soil samples.
The detection of oxygen ions in water samples.
The detection of lead ions in water samples.
The detection of nitrogen ions in soil samples.
4.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Which of the following elements is best analyzed by atomic absorption spectroscopy?
Oxygen
Nitrogen
Lead
Xenon
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Which one shows illustration for Atomic Emission Spectroscopy?
6.
MULTIPLE SELECT QUESTION
45 sec • 10 pts
What are the advantages of AES?
Energetic ion source
Good emission spectra
Lower susceptibility to spectral interferences
Lower susceptibility to chemical interferences
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Atomic Fluorescence Spectroscopy (AFS) is combination of AAS and AES.
What is the part from AES that is also applied in AFS?
excitation from ground state to upper state
measurement by detection of radiation emitted by flame
measurement by detection of radiation emitted by atoms
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