What is the pH of an aqueous solution if the [H+] = 0.000 042 M?

Name: What is the pH of an aqueous solution if the [H+] = 0.000 042 M?
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The pH of a solution is calculated using the formula pH = -log[H+], where [H+] is the concentration of hydrogen ions in moles per liter. Plugging in the given [H+] value of 0.000 042 M (or 4.2 x 10^-5 M) into the formula gives a pH of approximately 4.38.

What Is the PH of an Aqueous Solution If the [H+]