JEE Main 2022 Chemistry question
A commercially sold conc. HCl is 35% HCl by mass. If the density of this commercial acid is 1.46 g/mL, the molarity of this solution is : (Atomic mass : Cl = 35.5 amu, H = 1 amu)
Answer: (3)
Solution
Molarity = (mass % density 10)/molar mass = ( 10)/36.5 = 14.0 M.