In IR spectroscopy, what does a peak in the spectrum represent?
Practice Questions
1 question
Q1
In IR spectroscopy, what does a peak in the spectrum represent?
Absence of molecular vibrations
Presence of a specific bond or functional group
Temperature of the sample
Concentration of the sample
A peak in the IR spectrum represents the presence of a specific bond or functional group that absorbs infrared light at characteristic frequencies.
Questions & Step-by-step Solutions
1 item
Q
Q: In IR spectroscopy, what does a peak in the spectrum represent?
Solution: A peak in the IR spectrum represents the presence of a specific bond or functional group that absorbs infrared light at characteristic frequencies.
Steps: 5
Step 1: Understand that IR spectroscopy is a technique used to identify molecules based on how they absorb infrared light.
Step 2: Know that different bonds and functional groups in a molecule absorb infrared light at specific frequencies.
Step 3: Recognize that when a molecule absorbs infrared light, it causes a peak to appear in the IR spectrum.
Step 4: Realize that each peak corresponds to a specific bond or functional group in the molecule.
Step 5: Conclude that by analyzing the peaks in the IR spectrum, you can determine which bonds or functional groups are present in the sample.
