Podcast
Questions and Answers
According to Bohr's relation, the energy of the absorbed or emitted photon is related to the energy levels E1 and E2 through which of the following?
According to Bohr's relation, the energy of the absorbed or emitted photon is related to the energy levels E1 and E2 through which of the following?
- h
- ν (correct)
- E1 and E2
- 8.1
What is the basis of quantitative spectral analysis?
What is the basis of quantitative spectral analysis?
- Law of Avogadro
- Bouguer-Lambert-Beer law (correct)
- Archimedes' principle
- Newton's laws of motion
What happens when a beam of light containing all wavelengths within an interval is irradiated on a sample and a decrease in intensity is observed around certain wavelengths?
What happens when a beam of light containing all wavelengths within an interval is irradiated on a sample and a decrease in intensity is observed around certain wavelengths?
- Refraction of light occurs.
- Emission spectrum is observed.
- Scattering of light occurs.
- Absorption spectrum is observed. (correct)
In quantitative absorption analysis, the proportionality of the intensity of the spectral lines is related to what factor?
In quantitative absorption analysis, the proportionality of the intensity of the spectral lines is related to what factor?
In which field of study are atomic absorption spectra commonly used?
In which field of study are atomic absorption spectra commonly used?
What does the total amount of allowed energetic levels for the atoms of a chemical element form?
What does the total amount of allowed energetic levels for the atoms of a chemical element form?
What law states that the light absorption coefficient in a solution is proportional to the molar concentration of the absorbing molecules?
What law states that the light absorption coefficient in a solution is proportional to the molar concentration of the absorbing molecules?
What is the absorption index measured in according to the text?
What is the absorption index measured in according to the text?
Why do electrons jump to higher energy states in an atom?
Why do electrons jump to higher energy states in an atom?
What type of method is spectral analysis for studying the chemical composition of substances?
What type of method is spectral analysis for studying the chemical composition of substances?
What role does the law of the absorption of radiation play in according to the text?
What role does the law of the absorption of radiation play in according to the text?
What is the aim of laboratory practice involving a photocolourimeter?
What is the aim of laboratory practice involving a photocolourimeter?
Flashcards
Bohr's relation photon energy
Bohr's relation photon energy
The energy of an absorbed or emitted photon is related to the energy levels (E1 and E2) of an atom.
Quantitative spectral analysis basis
Quantitative spectral analysis basis
The Bouguer-Lambert-Beer law underlies quantitative spectral analysis.
Absorption spectrum
Absorption spectrum
A decrease in light intensity at specific wavelengths when passing through a sample.
Absorption analysis proportionality
Absorption analysis proportionality
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Atomic absorption use
Atomic absorption use
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Energetic spectrum
Energetic spectrum
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Beer's law
Beer's law
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Absorption index measurement
Absorption index measurement
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Electron jump to higher energy
Electron jump to higher energy
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Spectral analysis method
Spectral analysis method
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Law of radiation absorption's role
Law of radiation absorption's role
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Photocolourimeter aim
Photocolourimeter aim
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