Problems & Step-by-Step Video Solutions

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Chemistry Problems and Solutions on Videos. This section covers problems specifically about: Acid-base titrations, in the area of: Buffers, Solubility and Complex Ion Equilibria.
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15 04 01

60.0 mL of a weak monoprotic acid of an unknown concentration is titrated with 0.100 M NaOH. 86.3 mL of NaOH is needed to reach the equivalence point.

(a) What is the concentration of the weak acid?

(b) The pH at the half-equivalence point is 5.87. Calculate the Ka of this unknown acid?

(c) From your answers to (a) and (b), calculate the pH at the equivalence point.
06:32 PC|Mac Android iOS