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Factors Affecting Alpha

Following is ...

Question

Following is the tirration curve of two acids HA and HB (5 milli -moles each) titrated against strong base NaOH (0.1 M)
What is $p K_{a}$ for HB acid?

A

3

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B

4

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C

5

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D

6

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Solution

The correct option is C $5$
In tirration of the $p H$ at the half tirration point is equal to the $p K_{a}$ of the acid.
$p K_{a}$ of $H B = 5$

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