The [ H₃O+] of a solution with pH = 5.60 is
A)3 × 10-6 M.
B)2.5 × 10-8 M.
C)2.5 × 10-6 M.
D)4.0 × 10-6 M.
E)4.0 × 10-9 M.

Name: The [ H₃O+] of a solution with pH = 5.60 is A)3 × 10-6 M. B)2.5 × 10-8 M. C)2.5 × 10-6 M. D)4.0 × 10-6 M. E)4.0 × 10-9 M.
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Question

Quizplus · Accepted Answer

pH is defined as the negative logarithm of the H₃O+ concentration: pH = -log[H₃O+].

Rearranging the equation, we get [H₃O+] = 10^-pH.

Substituting pH = 5.60, we get [H₃O+] = 2.5 × 10^-6 M.

Therefore, the correct choice is C.

The [ H₃O+] of a Solution with PH = 5