Calculate the [OH⁻] of each of the following solutions at 25°C. Identify each solution as neutral, acidic, or basic.
a. [H+] = 1.0 x 10⁻⁷ M
b. [H+] = 8.3 x 10⁻¹⁶ M
c. [H+] = 12 M
d. [H+] = 5.4 x 10⁻⁵ M
Also calculate the pH and pOH of each of these solutions.
