
Emission and Excitation Spectra Concepts

Interactive Video
•
Chemistry
•
11th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main focus of the first experiment in CNG 292?
Understanding chemical reactions
Differentiating between emission and excitation spectra
Studying molecular structures
Analyzing chemical bonds
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the emission spectrum setup, why is the detector placed at a right angle to the excitation source?
To reduce noise
To capture more light
To increase the intensity
To prevent capturing incident light
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of setting an arbitrary excitation wavelength in the emission spectrum?
To measure the absorption spectrum
To find the emission peak
To increase the sample temperature
To reduce the emission intensity
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the excitation spectrum different from the emission spectrum?
It does not require a detector
It uses a fixed emission wavelength
It uses a fixed excitation wavelength
It measures absorption peaks
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main goal of running an excitation spectrum?
To determine the sample's color
To analyze the sample's density
To measure the sample's temperature
To find the highest emission intensity
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the emission spectrum, what is kept constant?
Detector angle
Sample temperature
Excitation wavelength
Emission wavelength
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the key difference in the x-axis between emission and excitation spectra?
Emission spectrum uses time
Excitation spectrum uses frequency
Excitation spectrum uses emission wavelength
Emission spectrum uses emission wavelength
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