What is the hydronium ion concentration of an acid rain sample that has a pH of 3.45? A)2.82 × 10^-11 mol L^-1 B)3.55 × 10^-4 mol L^-1 C)3.45 mol L^-¹ D)10.55 mol L^-1

Question

Quizplus · Accepted Answer

The hydronium ion concentration can be found using the equation: pH = -log[H3O+]. Rearranging this equation, we get [H3O+] = 10^-pH. Plugging in the pH value of 3.45, we get:
[H3O+] = 10^-3.45 = 3.55 × 10^-4 mol/L. 
Therefore, the best choice is B: 3.55 × 10^-4 mol/L.

What Is the Hydronium Ion Concentration of an Acid Rain