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6.0 g weak acid HA (mol.mass=60 g/mol.) ...

`6.0` g weak acid HA (mol.mass=60 g/mol.) is dissolved in water and formed 10 `m^(3)` solution. If `K_(a)(HA)=10^(-9),` then pOH of solution is : [Given: log 4=0.6]

A

`5.0`

B

`8.0`

C

`9.0`

D

`10`

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The correct Answer is:
A
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