5.5.2.6 Strong and Weak Acids Flashcards
1
Q
What is a strong acid?
A
- completely ionised in aqueous solution
2
Q
What are examples of strong acids?
A
- hydrochloric
- nitric
- sulfuric
3
Q
What is a weak acid?
A
- only partially ionised in aqueous solution
4
Q
What are examples of weak acids?
A
- ethanoic
- citric
- carbonic
5
Q
What does it mean for the pH if an acid is stronger (for a given concentration of aq. solutions?
A
- lower
6
Q
What happens when the pH decreases by one unit?
A
- hydrogen ion concentration of a solution increases by a factor of ten
7
Q
What does an acid being strong/weak mean?
A
- it is in terms of degree of ionisation
8
Q
What does an acid being dilute/concentrated mean?
A
- it is in terms of amount of substance
