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OpenStudy (anonymous):
What is the concentration of hydronium ions in a solution with a pH = 3.9? a. 4.14 × 10-2 b. 7.80 × 10-3 c. 1.26 × 10-4 d. 3.00 × 10-5
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OpenStudy (anonymous):
\( \color{green}{\text{[H}_3\text{O}^{+}] = 10^{-\text{pH}}} \)
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