Instrumental Analysis ACS Final with Verified Questions and Answers (Graded A)
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Course
Instrumental Analysis ACS
Institution
Instrumental Analysis ACS
Instrumental Analysis ACS Final with Verified Questions and Answers (Graded A)Instrumental Analysis ACS Final with Verified Questions and Answers (Graded A)Instrumental Analysis ACS Final with Verified Questions and Answers (Graded A)
How do you calculate linear range? - ANSWER-Analyte concentrati...
Instrumental Analysis ACS Final with
Verified Questions and Answers (Graded
A)
How do you calculate linear range? - ANSWER-Analyte concentration over which
response is proportional to the concentration
When you analyze, you always need to make sure that your sample/unknown
concentration is within the ________________. - ANSWER-Linear range
If the concentration of the unknown is greater than the high end of the linear range, you
should ____________ the unknown so that its concentration would fall into the linear
range. - ANSWER-Dilute
If the concentration of the unknown is lower than the low end of the linear range, you
should perform _________________. - ANSWER-Pre-concentration (evaporating,
anodic stripping voltammetry, etc.)
Know the electromagnetic spectrum. - ANSWER-Gamma rays: 10-11 m
X-rays: 10-11 m > x-rays > 10-8 m
Ultraviolet: 10-8 m > ultraviolet > 10-6.5 m
Visible: 10-6.5 m > visible > 10-6 m (lowest to highest)
Violet
Blue
Green
Yellow
Orange
Red
Infrared: 10-6 m > infrared > 10-3 m
Microwave: 10-3 m > microwave > 10-1 m
Radio: < 10-1 m
Know which region of the electromagnetic spectrum causes which molecular processes
to occur. - ANSWER-- X-rays: bond breaking and ionization
- Ultraviolet: electronic excitation
- Infrared: vibration
- Microwave: rotation
Common methods of atomization in atomic absorption and their type of sample. -
ANSWER-- Flame atomization with different types of fuels with oxidant (sample = liquid)
- Electrothermal atomization (sample = solids and slurry)
- Furnace atomization (sample = solids and slurry)
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