APFIVE Weak Acid Weak Base Equilibrium
A solution is prepared by mixing equimolar amounts of methylamine (CH₃NH₂, Kb = 4.4 × 10⁻⁴) and hydrofluoric acid (HF, Ka = 7.2 × 10⁻⁴). Which of the following species has the highest concentration in the resulting solution at equilibrium?
A
F⁻
B
CH₃NH₃⁺
C
CH₃NH₂
D
HF
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