Q. 20 g of hydrogen is present in a 5 L vessel. The molar concentration of hydrogen is
A) 1
B) 2
C) 3
D) 4
Explanation
(b)
Molar concentration $\left\lbrack H_{2} \right\rbrack = \frac{moles}{V(L)} = \frac{20/2}{5} = 2$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.