Question: I got 8.146 when solving this, but the answer key says its 2.60 and I am not sure why. I used the equation Kb= x^2/

I got 8.146 when solving this, but the answer key says itsI got 8.146 when solving this, but the answer key says its 2.60 and I am not sure why.

I used the equation Kb= x^2/ [concentration], then solved from OH- to pH. Is 2.60 a mistake?

PLEASE HELP, WILL UPVOTE!

What is the pH of a 0.035M aqueous solution of HCO2H ? Ka of HCO2H=1.8104

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