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An aqueous solution is prepared to be 0.243 M in sodium formate and 0.120 M in...

An aqueous solution is prepared to be 0.243 M in sodium formate and 0.120 M in benzoic acid.

(1) Is this solution a buffer solution?

(2) What is the pH of this solution?

(3) If 0.124 moles of hydrobromic acid are added to one liter of this solution, what is the pH of the resulting solution?

Ka value of benzoic acid = 6.3X10^-5

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