Question

Calculate the concentration of an aqueous solution of naoh that has a ph of 11.98.

Answer 1

0.001 mol/L. The concentration of an aqueous solution of NaOH with a pH

of 11 is 0.001 mol/L

Step 1. Calculate the pOH of the solution

pOH = 14.00 – pH = 14.00 -11 = 3

Step 2. Calculate the concentration of NaOH

[NaOH] = [OH^(-)] = 10^(-pOH) mol/L = 10^(-3) mol/L = 0.001 mol/L