Select the solution below that is the most acidic. A)[OH^-] = 1.0 × 10^-4 M B)[OH^-] = 1.0 × 10^-5 M C)[H₃O⁺] = 1.0 × 10^-6 M D)[H₃O⁺] = 1.0 × 10^-8 M E)[H₃O⁺] = 1.0 × 10^-10 M

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The most acidic solution is the one with the highest concentration of hydronium ions, [H₃O⁺]. Option C has the highest [H₃O⁺] concentration of 1.0 × 10^-6 M.

Select the Solution Below That Is the Most Acidic