Infrared Spectroscopy

Question 1

Infrared Spectroscopy

Answer 1

Measures vibrations of
bonds to identify functional groups

Question 2

Ultraviolet Spectroscopy

Answer 2

Measures electronic transitions to provide information on the electronic
bonding in the sample

Question 3

Mass Spectrometry

Answer 3

Breaks the molecule into fragments (destructive) and measures the MW offragments to give information to the structure and functional groups present

Question 4

Nuclear Magnetic Resonance

Answer 4

Uses electromagnetic fields to measure spinning of nuclei to identify chemical environments leading to
identification of functional groups and structure of the
sample

Question 5

Electromagnetic Radiations

Answer 5

Travel at the speed of light (c) but at different frequencies and wavelengths

Question 6

Frequency

Answer 6

Number of complete wave cycles that
pass a fixed point per second, Hz

Question 7

Wavelength

Answer 7

Distance between any two peaks

Question 8

Photons Planks constant

Answer 8

• Massless packs of energy E = hv

Question 9

Infrared region

Answer 9

• Molecular vibrations can be detected in the infrared region.
• The covalent bonds between atoms act like springs

Question 10

Carbonyl group

Answer 10

• 1735 if there is less carbon groups increase in peak more carbons attached