JEE Main 2022 · 26 Jun · Shift 1 · Chemistry Q61

ChemistrySingle correct+4 / -1Question 61 of 90

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)

10.2 M

12.5 M

14.0 M

18.2 M

Answer and worked solution

Official answer: C

Per litre. Mass $1460$ g, of which HCl $0.35\times1460=511$ g.

Molarity. $\dfrac{511}{36.5}=14.0$ M.

(C)

Topics:Concentration terms

JEE Main 2022 · 26 Jun · Shift 1, Chemistry question 61