Molecular Spectroscopy Overview (Exam 3)

Question 1

The study of the interaction between matter and radiated energy.

Answer 1

What is spectroscopy?

Question 2

The quantitative measurement of the reflection or transmission properties of a material as a function of wavelength.

Answer 2

What is spectrophotometry?

Question 3

This instrument captures light of any selected color/wavelength.

Answer 3

What is a spectrometer?

Question 4

This instrument is used for measuring the intensity of light.

Answer 4

What is a photometer?

Question 5

The part of a molecule responsible for the observed absorption.

Answer 5

What is a chromophore?

Question 6

Distance between two adjacent peaks of periodic waves.

Answer 6

What is wavelength?

Question 7

Number of waves passing a given point per second.

Answer 7

What is frequency?

Question 8

What is the duality of light?

Answer 8

It has both wave and particle properties

Question 9

What are the 3 molecular energy states?

Answer 9

1) Electronic
2) Vibrational
3) Rotational

Question 10

Which type of spectroscopy is associated with the electronic energy state?

Answer 10

UV-Vis

Question 11

What types of spectroscopy are associated with the vibrational & rotational energy states?

Answer 11

FT-IR and Raman