Asked by kobe
Explain why the volume of 0.100 M NaOH required to reach the equivalence point in the titration of 25.00 mL of 0.100 M HA is the same regardless of whether HA is a strong or weak acid, yet the pH at the equivalence point is not the same
Answers
Answered by
DrBob222
mols strong acid = M x L
mols weak acid = M x L
mols NaOH = M x L.
So when mols NaOH = mols of EITHER the indicator turns. The indicator doesn't know what kind of acid is present. When mols = mols the indicator turns (if you're using the right indicator for the pH).
mols weak acid = M x L
mols NaOH = M x L.
So when mols NaOH = mols of EITHER the indicator turns. The indicator doesn't know what kind of acid is present. When mols = mols the indicator turns (if you're using the right indicator for the pH).
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