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Diano4ka-milaya [45]
3 years ago
5

A weak acid is titrated with 0.1236 M NaOH. From the titration curve you determine that the equivalence point occurs after exact

ly 12.42 mL of NaOH have been added. What is the volume of NaOH at the half-equivalence point (a.k.a. the midpoint)
Chemistry
1 answer:
MrRa [10]3 years ago
7 0

<u>Answer:</u> The volume of NaOH required at the half-equivalence point is 6.21 mL

<u>Explanation:</u>

The chemical equation for the reaction of a weak acid with NaOH follows:

HA+ NaOH\rightarrow NaA+H_2O

From the equation, we can say that NaOH and weak acid is present in a 1 : 1 ratio.

We are given:

Volume of NaOH required at equivalence point = 12.42 mL

The volume of NaOH required at half-equivalence point will be = \frac{12.42mL}{2}=6.21mL

Hence, the volume of NaOH required at the half-equivalence point is 6.21 mL

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