If the pH of 1 liter of a 1.0 M carbonate buffer is 7.0, what is the molar ratio of H₂CO₃ to HCO₃⁻? (pK = 6.37)

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Quizplus · Accepted Answer

The Henderson-Hasselbalch equation is used to find the ratio of the concentration of the conjugate base to the acid in a buffer solution. The equation is pH = pKa + log([A-]/[HA]), where [A-] is the concentration of the conjugate base and [HA] is the concentration of the acid. Given that the pH is 7.0 and the pKa is 6.37, substituting these values into the equation gives 7.0 = 6.37 + log([A-]/[HA]). Solving for the ratio [A-]/[HA] gives approximately 4.27.

If the PH of 1 Liter of a 1