What is the concentration (in M) of hydroxide ions in solution at 25.0 C with pH = 4.282?
The Ka of hydrazoic acid (HN3) is 1.9 x 10^-5 at 25.0C. What is the pH of a 0.35 M aqueous solution of HN3?
2.59 (blue igloo)
A 0.15 M aqueous solution of the weak acid HA at 25.0C has a pH of 5.35. The value of Ka for HA is _______.
Classify the following compounds as weak bases (W) or strong bases (S): ammonia fluoride ion sodium hydroxide
The Ka of hypochlorous acid (HClO) is 3.0 x 10^-8 at 25.0C. What is the % ionization of hypochlorous acid in a 0.015 M aqueous solution of HClO at 25.0C?
HA is a weak acid. Which equilibrium corresponds to the equilibrium constant Kb for A-?
A-(aq) + H20 (l) (double arrows) HA(aq) + OH-(aq)
The acid dissociation constant at 25.0C for hypochlorous acid (HClO) is 3.0 x 10^-8. At equilibrium, the molarity of H3O+ in a 0.010 M solution of HClO is ______________.
In the gas phase reaction below, NH3 is acting as a(n) ______________ base but not as a(n) ____________ base.