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A solution is prepared at 25°C that is initially 0.45 M in propanoic acid (HC₂HCO₂), a weak acid with Kₐ -1.3 x 10⁻⁵, and 0.086 M in potassium propanoate (KC₂H₅CO₂). Calculate the pH of the solution. Round your answer to 2 decimal places.
Sagot :
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