Q. Calculate the pH of a solution in which hydrogen ion concentration is 0.005 g-equi/L?
A) $2.3$
B) $2.8$
C) $2.9$
D) $2.6$
Explanation
(a)
$pH = - \log\left\lbrack H^{+} \right\rbrack = - \log\lbrack 0.005\rbrack$
$= - \log{\left\lbrack 5 \times 10^{- 3} \right\rbrack = 2.3}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.