acids and bases reactivity 1 Flashcards
Acids
acids are a species that have the tendency to lose a proton.
Base
are species that have the tendency to gain a proton,
a low pka means
it is an acid
pH
is the negative logarithm of the H3O+ concentration.
every acid has a
Every acid has a conjugate base
An acid’s pKa depends
on the stability of its conjugate base
The stronger the acid the weaker its conjugate base A−.
means it has a weak conjugated base
a weak acid has a
strong conjuated base
weak h-a bonds means
a strong acid
Delocalization of the negative charge
stabilizes the conjugatebase
delocalization of negative charge means
it will be a stronger acid
chlorine acid
The acids HClO, HClO2, HClO3, and HClO4 have pKa values 7.5, 2, –1, and about –10,
when it loses H what happens
- charge delocalises
weak base
it means that it will not accept the proton again
what would be a stronger acid phenol or cyclohexanol
phenol can delocalise the pi bond electrons.
it stabalizes the anion.
it is a weaker conjugated base, less likely to be pronated
