Instrumental Analysis ACS Exam Final Questions and Answers 100% Accurate
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Course
Instrumental Analysis ACS
Institution
Instrumental Analysis ACS
Instrumental Analysis ACS Exam Final Questions and Answers 100% AccurateInstrumental Analysis ACS Exam Final Questions and Answers 100% AccurateInstrumental Analysis ACS Exam Final Questions and Answers 100% Accurate
What is linear range? - ANSWER-Analyte concentration over the response that is ...
Instrumental Analysis ACS Exam Final
Questions and Answers 100% Accurate
What is linear range? - ANSWER-Analyte concentration over the response that is
proportional to the concentration.
When analyzing an unknown where should the concentration of the unknown fall? -
ANSWER-Somewhere within the linear range
What should you do if the unknown concentration is below the linear range? -
ANSWER-perform pre-concentration
Examples of pre-concentration - ANSWER-evaporating, anodic stripping voltammetry
What should you do if the concentration of the unknown is greater than the linear
range? - ANSWER-dilute the concentration so that it falls closer to the linear range
What is the electromagnetic spectrum in order of increasing wavelength? - ANSWER-
gamma, x-rays, UV, visible light, IR, microwave, radio
What is the electromagnetic spectrum in order of increasing frequency? - ANSWER-
radio, microwave, IR, visible, UV, x-rays, gamma
In what region of the electromagnetic spectrum is the resonant frequency of electrons in
glass? - ANSWER-ultraviolet
More about regions (answer IDK) - ANSWER-IDK
How do you calculate the concentration of a sample given a point calibration? (answer
IDK) - ANSWER-IDK
What are the common methods of atomization in atomic absorption? - ANSWER-flame
atomization, electrothermal atomization, furnace atomization
What type of sample can be used for flame atomization? - ANSWER-liquid
What type of sample can be used for electrothermal atomization - ANSWER-solid and
slurry
What type of sample can be used for furnace atomization? - ANSWER-solid and slurry
What are the pros and cons of using electrothermal atomization and/or furnace
atomization compared to using flame atomization? - ANSWER-Both offer a lower
, detection limit and can work with solid samples. However, both are slower due to
heating-cooling cycles and are less precise making them less producible.
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *oxygen*
Temperature, °C *3050-3150* - ANSWER-acetylene
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *nitrous oxide*
Temperature, °C *2600-2800* - ANSWER-acetylene
*True or false* You can substitute one type of oxidant with another. For instance, you
can substitute oxygen with the flame atomization settings for air. - ANSWER-*False*
You should not substitute one type of oxidant with another
Doppler effects - ANSWER-an observed change in the frequency of a wave when the
source or observer is moving
What is the light source of atomic absorption? - ANSWER-hallow cathode lamp
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *oxygen*
Temperature, °C *2700-2800* - ANSWER-natural gas
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *air*
Temperature, °C *2000-2100* - ANSWER-hydrogen
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *oxygen*
Temperature, °C *2550-2700* - ANSWER-hydrogen
Given the following information about the flame atomization below, name the fuel type
that should be used.
Oxidant *air*
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