The pH is defined as the hydrogen ion concetration in a solution. Since we are given the concentration of [tex]H_3O^{+}[/tex], which is the same as [tex]H^{+}[/tex], we use the formula [tex]pH= -log [H^{+} ][/tex] to find the pH of the solution.
[tex]pH= -log[H^{+}] = -log [5.6 \times 10^{-9} ] = 8.25[/tex]
The correct answer is B.
Answer: Option (B) is the correct answer.
Explanation:
pH is defined as the measurement of hydrogen or hydroxide ions in a solution.
Mathematically, pH = [tex]-log[H^{+}][/tex]
It is given that concentration of [tex][H^{+}][/tex] or hydronium ion [tex][H_{3}O^{+}][/tex] is [tex]5.6 \times 10^{-9}[/tex].
Therefore, calculate the pH as follows.
pH = [tex]-log[H^{+}][/tex]
= [tex]-log[5.6 \times 10^{-9}][/tex]
= 8.25
Thus, we can conclude pH of the solution is 8.25.
