BRAINCAKEControlling the pH of Blood
Human blood plasma has to be between 7.35 and 7.45. The pH is controlled in part by the carbonic acid-hydrogen carbonate buffer.
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Key terms in this lesson
- buffer solution
- A solution that resists changes in pH when small amounts of acid or alkali are added.
- weak acid
- An acid that only partially dissociates into its ions in aqueous solution.
- conjugate base
- The species left after an acid has donated a proton.
More in Acids, Bases and Buffers
- Calculating the pH of a Weak Acid
- The Ionic Product of Water Kw
- Calculating the pH of a Strong Base
- Buffer Solutions
- pH of a Buffer Solution
- Titration Curves
- Acid-Base Indicators
- Standard Enthalpy of Neutralisation
All 15 lessons in Acids, Bases and Buffers · All OCR A-level Chemistry topics