Q. If 117 g NaCl is dissolved in 1000 g of water the concentration of the solution is said to be
A) 2 molar
B) 2 molal
C) 1 normal
D) 1 molal
Explanation
(b)
The number of moles or gram molecules of solute dissolved in 1000 g of solvent = molality
117 g NaCl = 2 mol
Hence, concentration of solution = 2 molal
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.