2013 USNCO Problem 5: Hydroxide Concentration
Source:
May 23, 2013
Problem Statement
A mixture is prepared by adding mL of M \ce{NaOH} to mL of M \ce{NaOH}. What is the $$$[OH^-]$ in the mixture?$ (A) \text{0.0600 M}\qquad(B) \text{0.0800 M}\qquad(C) \text{0.140 M}\qquad(D) \text{0.233 M}\qquad$