Question on: SS2 Chemistry - Acids, Bases, and pH

The hydrogen ion concentration can be calculated by taking the antilog of the negative pH value:

[H+] = 10^(-pH)

Given that the pH is 9, we can substitute this value into the formula:

[H+] = 10^(-9)

[H+] = 1 x 10^(-9)

Therefore, the hydrogen ion concentration of the solution is 1 x 10^(-9) M.