Q:

In a solution like blood that is buffered to minimise changes in pH, what determines the pH of the solution

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In a solution like blood that is buffered to minimise changes in pH, what determines

the pH of the solution?


  1. the concentration of the hydronium ions
  2. the logarithm of the concentration of the hydronium ions
  3. the ratio of the concentration of hydronium ions to hydroxide ions.
  4. the ratio of the concentrations of the two components of the buffer.

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D: Any hydronium and hydroxide ions present will react with one of

the two components of the buffer. So the amount of buffer component (viz their

ratio) governs the concentration of these ions and hence the pH of the

solution.

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