The pH of a solution with [H₃O⁺] = 5.9 × 10^-3 M,to the correct number of significant figures,is A)5.9 × 10^-3. B)2.2. C)2.23. D)1.01. E)2.229.

Question

Quizplus · Accepted Answer

The given solution contains an ionic compound H₃O⁺, which can be dissociated into its component ions: H₃O⁺ -> H+ + ₃O3- The concentration of H+ ions in the solution is equal to the concentration of the dissociated acid, which is [H+] = [₃O3-] = 5.9 × 10^-3 M. The pH of the solution is defined as pH = -log[H+]. Substituting the given value of [H+], we get: pH = -log(5.9 × 10^-3) = -(-2.63) = 2.63. Rounding off to the correct number of significant figures, we get the answer as 2.23.

The PH of a Solution with [H3O+] = 5

The PH of a Solution with [H₃O⁺] = 5