What is the hydronium ion concentration of an acid rain sample that has a pH of 3.15? A)1.41 × 10^-11 M B)7.08 × 10^-4 M C)3.15 M D)10.85 M

Name: What is the hydronium ion concentration of an acid rain sample that has a pH of 3.15? A)1.41 × 10 -11 M B)7.08 × 10 -4 M C)3.15 M D)10.85 M
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Quizplus · Accepted Answer

According to the formula pH = -log[H3O+], we can rearrange it to get [H3O+] = 10^-pH. 
Substituting the given value of pH (3.15), we get [H3O+] = 7.08 × 10^-4 M, which corresponds to option B.

What Is the Hydronium Ion Concentration of an Acid Rain