Question

Hydrosulfuric acid, H2S, has two acid ionization constants. What is the equation that corresponds to the Ka value of Ka = 8.9 × 10^−8? and include states of matter in the answer

Answer 1

The first dissociation constant is usually relatively large, this constant is fairly small, so without looking it up, it seems reasonable that,

`HS^(-)(aq) rightleftharpoons S^(2-)(aq) + H^(+)(aq)`

is the equation corresponding that `K_a` value.