Buffer Solutions (OCR A-Level Chemistry A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the primary function of a buffer solution?
What is the primary function of a buffer solution?
Resist pH changes when acid/base added
Which buffer component removes added acid?
Which buffer component removes added acid?
The conjugate base ()
What happens when one buffer component is fully consumed?
What happens when one buffer component is fully consumed?
Solution loses buffering capacity
How do salts of weak acids behave when dissolved in water?
How do salts of weak acids behave when dissolved in water?
Completely dissociate into ions
What is needed to prepare a buffer by partial neutralization?
What is needed to prepare a buffer by partial neutralization?
Excess weak acid and some alkali
When acid is added to a buffer, which direction does the equilibrium shift?
When acid is added to a buffer, which direction does the equilibrium shift?
To the left
What happens when alkali is added to a buffer solution?
What happens when alkali is added to a buffer solution?
Weak acid dissociates to restore
When is a buffer most effective at removing added acid or alkali?
When is a buffer most effective at removing added acid or alkali?
When [HA] = []
Which formula calculates in a buffer solution?
Which formula calculates in a buffer solution?
What is the typical operating pH range for a buffer centered on its pK value?
What is the typical operating pH range for a buffer centered on its pK value?
About 2 pH units total span