Ducksseahawks3258 Ducksseahawks3258 Today at 9:11 PM Chemistry Answered The pH of an acid solution is 2.15. If the concentration of the acid in solution is 0.100 mol/L, what is the Ka of the acid? a) 1.8 x 10⁻⁵ b) 1.5 x 10⁻⁶ c) 2.0 x 10⁻⁴ d) 2.5 x 10⁻³