Chemistry- Strong And Weak Acids Flashcards
1
Q
What does it mean by ‘acids can ionise in a solution’
A
Splitting up to produce a hydrogen and another ion eg: chlorine
2
Q
What is a strong acid
A
Strong acids ionise completely in water,
3
Q
What pH are strong acids (usually)
A
pH0-2
4
Q
What are 3 examples of Strong acids (3 marks)
A
Sulphuric acid, hydrochloric acid, nitric acid
5
Q
What is a weak acid
A
An acid that doesn’t completely ionise in a solution
6
Q
What pH are weak acids (usually)
A
2-6
7
Q
What are 3 examples of weak acids (3 marks)
A
Ethanoic acid, citric acid, carbonic acid
8
Q
What is the difference between concentration and strength
A
Strength tells us what proportion of the acid molecules ionise in water. Whereas Concentration measures how much acid there is in 1dm^3 of water
