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Aqueous solution containing 30 gm CH(3)C...

Aqueous solution containing 30 gm `CH_(3)COOH` are:

A

250 ml of `2M CH_(3)COOH` solution

B

600 gm of 5% (by wt.) `CH_(2)COOH` solution

C

111 gm of solution in which mole fraction of `CH_(3)COOH` is 0.1

D

500 gm of 7 m `CH_(3)COOH` solution

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one litre of an aqueous solution contains 0.15 mole of CH_(3)COOH(pK_(a=4.8)) and 0.15 mole of CH_(3) COONa. After the addition of 0.05 mole of solid NaOH to this solution, the pH will be :

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