Infrared Spectroscopy Basics
A Grade 9 science worksheet introducing the principles and applications of Infrared Spectroscopy.
Includes
Standards
Topics
Infrared Spectroscopy Basics
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. What type of electromagnetic radiation is used in Infrared Spectroscopy?
Ultraviolet light
Visible light
Infrared radiation
X-rays
2. What information can Infrared Spectroscopy provide about a molecule?
Its exact mass
Its functional groups
Its melting point
Its density
3. In Infrared Spectroscopy, molecules absorb infrared radiation at specific corresponding to their vibrational modes.
4. The region of the IR spectrum from 1500 cm⁻¹ to 400 cm⁻¹ is often called the region.
5. All molecular bonds absorb infrared radiation.
True
False
6. Infrared spectroscopy is primarily used to determine the elemental composition of a sample.
True
False
7. Briefly explain how a molecule's bonds interact with infrared radiation.
8. Describe one practical application of infrared spectroscopy in a real-world scenario.
An example of an infrared spectrum:
9. Based on the image above, what does the x-axis typically represent in an IR spectrum?