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The ionization of benzoic acid is repres...

The ionization of benzoic acid is represented by this equation
`C_6H_5COOH (aq) hArr H^(+)(aq)+C_6H_5COO^(-)(aq)`
If a 0.045 M solution of benzoic acid has an `[H^+]=1.7xx10^(-3)`, what is the `K_a` of benzoic acid ?

A

`7.7xx10^(-5)`

B

`6.4xx10^(-5)`

C

`3.8xx10^(-2)`

D

`8.4xx10^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
b
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