Flashcards in Module 2 Deck (20):
Organic molecules with the same molecular formula but different structural formulae.
Same molecular formula, but different types of chain
Same molecular formula, but different positions of the:
functional groups on a parent chain
Same molecular formula, but different functional groups
London Dispersion forces
Momentary dipole forms during a collision
Electrostatic attraction between opposite ends of two molecules
H bonded to O, N, F
Form by overlapping orbitals and shared electron pairs
The accumulated electrostatic attraction between the molecules
Summarise the general relationship between the length of carbon chain and boiling point of the compound
As molecular mass increase,
The strength of the IMFs increases,
The amount of energy needed to separate molecules increases
So boiling point is higher
The pressure exerted by the evaporated liquid in a closed container.
Why are volatile organic compounds a safety hazard?
If compound is flammable and volatile then more molecules are in gas phases and mixed with oxygen in the air and so can ignite/burn/explode.
Equation for the combustion of alkanes
(use of alkanes as fuels)
Alkane + excess oxygen -> carbon dioxide + water
if not enough oxygen is present, incomplete combustion can occur, resulting in formation of CO
The presence of an acid is used to speed up the reaction
One of the products is water
Occur when an atom(s) in an organic molecule is replaced by another atom
Where one or more atoms are added across a double bond in a molecule.
Name the test we use to test for a carbon-carbon double bond
Addition of HX to unsymmetrical alkenes:
Hydrogen atom adds to carbon atom already carrying the GREATER number of hydrogen atoms