Calculate the pH of a solution that has[OH^-] = 2.1x10^-2 M round your answer to 2 decimal places
Note: Reference the Fundamental constants table for additional information.
To calculate the pH of a solution from the hydroxide ion concentration, we first need to find the pOH using the formula:
pOH = -log[OH^-]
pOH = -log(2.1x10^-2)
pOH = -log(0.021)
pOH = 1.68
Since pH + pOH = 14, we can find the pH:
pH = 14 - pOH
pH = 14 - 1.68
pH = 12.32
Therefore, the pH of the solution is 12.32.