Answer: The pH and [OH-] of a solution are related by the equation:
pH + pOH = 14
where pH is the negative base-10 logarithm of the hydrogen ion concentration [H+], and pOH is the negative base-10 logarithm of the hydroxide ion concentration [OH-].
To find the [OH-] of a solution with a pH of 1.6, we can use this equation:
pH + pOH = 14
1.6 + pOH = 14
pOH = 12.4
Now that we know the pOH of the solution, we can find the [OH-] using the following equation:
pOH = -log[OH-]
-12.4 = log[OH-]
[OH-] = 3.98 x 10^-13 M
Therefore, if the pH of a solution is 1.6, its [OH-] would be 3.98 x 10^-13 M.
Step-by-step explanation: