A. What is the pH of an aqueous solution with a hydrogen ion concentration of [H+]=2.4×10−3[H+]=2.4×10−3 M? pH=pH= B. Wh

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A. What is the pH of an aqueous solution with a hydrogen ion
concentration of [H+]=2.4×10−3[H+]=2.4×10−3 M?
pH=pH=
B. What is the hydroxide ion concentration, [OH−][OH−], in
an aqueous solution with a hydrogen ion concentration
of [H+]=2.4×10−3[H+]=2.4×10−3 M?
[OH−]=[OH−]=
MM
C. A monoprotic weak acid, HAHA, dissociates in water
according to the reaction
HA(aq)↽−−⇀H+(aq)+A−(aq)HA(aq)↽−−⇀H+(aq)+A−(aq)
The equilibrium concentrations of the reactants and products
are [HA]=0.250 M[HA]=0.250 M, [H+]=2.00×10−4 M[H+]=2.00×10−4 M,
and [A−]=2.00 ×10−4 M[A−]=2.00 ×10−4 M.
Calculate the 𝐾avalue for the acid HA.
𝐾a=