Chapter 3, Acid And Bases Flashcards
(20 cards)
Bronsted-Lowry Definitions:
A base:
A proton acceptor.
Bronsted-Lowry Definitions:
An acid…
Is a proton donor.
pH=
pH=-log[H+]
pH is always given to…
2 d.p
Ionic product of water=
Kw=[H+][OH]= 1x10-14
What do weak acids and bases do…
Only partially dissociates.
Ka indicates…
The dissociation of the acids.
The larger the Ka value…
The greater the dissociation.
pKa=
-log[Ka]
A stronger acid will…
Dissociate more, leading to a smaller pKa value.
The equivalence point occurs when…
There are equal numbers of acids and base moles.
The end point is where…
The indicator changes colour.
An acceptable indicator will change colour on the…
Vertical position of the graph.
Strong acid/ strong base…
MO
PP
Strong acid/ weak base
MO
Weak acid/ strong base
PP
Weak acid/ weak base
NONE
An acidic buffer consists of…
An acid and the salt of the acid.
A basic buffer consists of…
Ammonia and ammonium chloride.
What must I always remember about acids?
They can be DIPROTIC!!!
Especially sulphuric acid!
