The acid-dissociation constant at 25.0°C for hypochlorous acid (HClO) is 2.9×10-8. At equilibrium, the molarity of H3O+ ion in a 0.068 M solution of HClO is .

Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)