Chemistry A-Level
Buffer
What Buffer means in Chemistry A-Level, as defined for OCR.
Definition of Buffer
Check what you remember
Read the wording for your board, then hide it and explain Buffer in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
A solution that resists pH change when small amounts of acid or base are added.
Topics that use Buffer
- Acids, bases and buffers (OCR A-Level)
Related terms
- Acid dissociation constant Ka
- acidic buffer
- Amphiprotic
- basic buffer
- Basicity
- Buffer action against added acid and alkali
- Buffer action and pH resistance
- Calibration with buffer solutions
Using Buffer in the exam
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