What is the hydrogen-ion concentration of an aqueous solution having a pH of 4.72?

Question

Quizplus · Accepted Answer

The pH scale is defined as the negative logarithm (base 10) of the hydrogen-ion concentration. So, we can use the following formula to calculate the hydrogen-ion concentration:

pH = -log[H+]

Rearranging the formula, we get:

[H+] = 10^-pH

Substituting the pH value of 4.72, we get:

[H+] = 10^-4.72 = 1.9 × 10^-5 mol/L

Therefore, the hydrogen-ion concentration of the solution is 1.9 × 10^-5 mol/L, which is option D.

What Is the Hydrogen-Ion Concentration of an Aqueous Solution Having