Acids & Bases Flashcards
1
Q
What is an acid?
A
An acid (by Brønsted-Lowry definition) is a proton (H+) donor. e.g. carboxylic acid
2
Q
What is a base?
A
A base (by Brønsted-Lowry definition) is a proton (H+) acceptor. e.g. amine
3
Q
Acid & Base Reaction (with conjugates)
A
Acid + Base —> Conjugate Base + Conjugate Acid
4
Q
What is a conjugate acid?
A
A conjugate acid is the molecule formed when the base in the reaction accepts a proton (H+).
(As bases are proton acceptors)
5
Q
NH3(g) + H2O(l) → NH4+(aq) + OH−(aq)
What is the conjugate acid and what is the conjugate base?
A
Conjugate acid:
NH4+ - as the NH3 in the equation can be saw to GAIN a proton (H+) making NH4+ from NH3
Conjugate base:
OH- - as the H2O in the equation can be saw to DONATE a proton (H+) making OH- from H2O
6
Q
What is a conjugate base?
A
A conjugate base is the molecule formed when the acid in the reaction donates a proton (H+).
(As acids are proton donators)
