Question

Suppose that 30 mL of 0.5 M CsOH and 55 mL of 0.1 M NaHS are mixed.

What is the K for the dominant equilibrium in terms of Ka's, Kb's, Kw etc.?

Ka of HS-

1/Ka of HS-

Kb of OH-

1/Kb of OH-

Kb of S-2

1/Kb of S-2

Kw

1/Kw

There is no reaction.

Answer 1

Sarah, I showed you in detail how to do the last one. Just follow that procedure. The only difference in the two problems is that the other one was a strong acid and the salt of a weak acid. This one is a strong base (CsOH) and the salt of a weak acid (H2S or technically HS^-).