Engineering Chemistry: Spectroscopy Applications Quiz

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Questions and Answers

What is the principle of flame photometry based on?

  • The measurement of the absorbed light intensity when a metal is introduced into the flame
  • The measurement of the reflected light intensity when a metal is introduced into the flame
  • The measurement of the emitted light intensity when a metal is introduced into the flame (correct)
  • The measurement of the transmitted light intensity when a metal is introduced into the flame

What information can be obtained from the wavelength of the emitted light in flame photometry?

  • The amount of the element present in the sample
  • The identity of the element (correct)
  • The temperature of the flame
  • The concentration of the element

What information can be obtained from the color intensity of the flame in flame photometry?

  • The identity of the element
  • The amount of the element present in the sample (correct)
  • The temperature of the flame
  • The wavelength of the emitted light

Which of the following is not a branch of atomic absorption spectroscopy?

<p>Infrared spectroscopy (C)</p> Signup and view all the answers

Which metal ions can be determined using a flame photometer?

<p>Sodium, potassium, lithium, calcium, and cesium (C)</p> Signup and view all the answers

What is the other name for flame photometry?

<p>Flame atomic emission spectrometry (A)</p> Signup and view all the answers

Who developed the first flame photometer instrument?

<p>Bowling Barnes, David Richardson, John Berry, and Robert Hood (D)</p> Signup and view all the answers

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