Strong & Weak Acids (AQA GCSE Chemistry Combined Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What do acids release when they dissociate in water?
What do acids release when they dissociate in water?
Hydrogen ions () and anions
What determines whether an acid is classified as strong or weak?
What determines whether an acid is classified as strong or weak?
The extent of dissociation in water
How do strong acids behave when dissolved in water?
How do strong acids behave when dissolved in water?
They completely dissociate
Which of these is an example of a strong acid?
Which of these is an example of a strong acid?
Hydrochloric acid ()
What is the key characteristic of weak acids?
What is the key characteristic of weak acids?
They only partially dissociate
What type of process is the dissociation of weak acids?
What type of process is the dissociation of weak acids?
Reversible
Which acid is given as an example of a weak acid?
Which acid is given as an example of a weak acid?
Ethanoic acid ()
Which type of acid has a lower pH value?
Which type of acid has a lower pH value?
Strong acid
By how much does pH decrease when concentration increases tenfold?
By how much does pH decrease when concentration increases tenfold?
1 unit
If pH increases from 1 to 3, by what factor does concentration decrease?
If pH increases from 1 to 3, by what factor does concentration decrease?
100
What does the 'strength' of an acid refer to?
What does the 'strength' of an acid refer to?
Its ability to dissociate in water
Where does the equilibrium lie for weak acids?
Where does the equilibrium lie for weak acids?
Far to the left