the equivalence point in the titration is 50.80mL. At 25.40 mL the pH was measured to be 3.86. What is the pKa of unknown acid
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At the halfway point, the concentration of the acid is equal to the concentration of its conjugate base, which means that pH = pKa. Show more…
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The equivalence point in the titration of this weak acid is 50.80 mL. At 25.40 mL, the pH was measured to be 3.86. What is the pKa of the unknown acid? (The Ka is 1.38E-4)
Supreeta N.
The equivalence point in the titration of this weak acid is 50.80 mL. At 25.40 mL, the pH was measured to be 3.86. Calculate the Ka of the unknown acid.
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An unknown monoprotic organic acid is dissolved in water and titrated with a solution of NaOH: The pH of the solution is measured after addition of every 0.10 mL of the NaOH: The equivalence point is reached when total of 32.68 mL of the NaOH is added, which resulted in a pH of 8.201_ The pH at half-equivalence point was also measured to be 3.236_ What is the Ka of the unknown acid? 3.236 6.30 * 10" 5.81 10*-4 1.72 * 10*11
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