Q. What is the pH of the resulting solution when equal volumes of 0.1 M NaOH and 0.01 M HCl are mixed ?
A) 7.0
B) 1.04
C) 12.65
D) 2.0
Explanation
[Solution] $[OH^-] = \frac{0.1 - 0.01}{2} = 0.045$ M; pOH = 1.35, pH = 12.65. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.