Question

Question #ebcac

Answer 1

`Ba(C_2H_3O_2)_2` in water => `Ba^(+2)(aq)` + `2C_2H_3O_2^- "(aq)`

`C_2H_3O_2^-"(aq) +` H-OH <=> `HC_2H_3O_2(aq) + OH^-"(aq)` => Hydrolysis Rxn

`Ba^(+2)(aq)` + # H-OH => No Reaction

Explanation:

`Ba(C_2H_3O_2)_2` in water => `Ba^(+2)(aq)` + `2C_2H_3O_2^- "(aq)`
If the ions from salt ionization react with water to form a weak electrolyte (i.e., weak acid or weak base) then hydrolysis is said to occur.

The only species in this ionization that will react with water is the acetate ion forming acetic acid and results in concentration of hydroxide ions being greater than `10^-7M` giving solution an alkaline pH.

`C_2H_3O_2^-"(aq) +` H-OH <=> `HC_2H_3O_2(aq) + OH^-"(aq)`

`Ba^(+2)(aq)` + H-OH => No Reaction as `Ba(OH)_2` is classified as a strong Group II Alkali Earth Base and prefers to remain 100% ionized (as do all strong electrolytes). No molecular forms of Barium Hydroxide are present in aqueous solution.