11. Measurement and data processing

Question 1

index Hydrogen Deficiency (IHD)

Answer 1

also known as the degree of unsaturation, is used to determine the number of H2 molecules required to convert any molecule to one that is saturated and non-cyclic

Question 2

mass spectrometry

Answer 2

measures the mass of the molecule, and the masses of the fragments that form from the molecule

Question 3

infrared (IR) spectroscopy

Answer 3

dentify the type of bonds and functional groups present in a molecule

Question 4

proton Nuclear Magnetic Resonance (1H-NMR) spectroscopy

Answer 4

identifies for hydrogen atoms: 1. their chemical environment, 2. the ratio between the number of hydrogen atoms in the same environment, and 3. the number of neighboring hydrogen atoms in a molecule

Question 5

x-ray diffraction

Answer 5

identify the lengths and angles of bonds in any type of substance (metal, ionic and molecular)

Question 6

IHD =

Answer 6

number of rings + number of π bonds