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What is the hydronium ion concentration of a substance with a pH of 2?

The hydronium ion concentration of the substance is 0,01 M.

Explanation:

The pH indicates the acidity or basicity of a substance. PH values between 0 and less than 7 indicate acidic solutions, 7 neutral and greater than 7 to 14 basic. It is calculated as

pH = - log (H 30+), and in this case we solve to calculate (H30 + ):

(H30 + ) = antilog - pH = antilog - 2

(H30+) = 0,01 M