Acid or Base reaction

Question

Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous solution. If neutral, simply write only NR.

CsC₄H₄O₆

What I have at the moment is CsC₄H₄O₆ + H₂O --> ?

Is it the conjugate base/acid? if so, how do I know what that is?

Answer 1

It is basic. The salt dissociates in water to produce Cs⁺ and C₄H₄O₆^-.

C₄H₄O₆^- is a strong conjugate base and readily reacts with water producing OH^- ions and hence the solution is acidic.

C₄H₄O₆^-.+ H₂0 -------------------- HC₄H₄O₆ + OH^-