Solution

Density = 1.17 g/cc, so 1 cc of liquid HCl contains 1.17 g of HCl, and 1000 cc (1 L) contains 1170 g.
Moles in 1 L $= \dfrac{1170}{36.5}$
$\therefore$ molarity $= \dfrac{1.17 \times 1000}{36.5 \times 1} = 32.05$ M

Concept Molarity of a pure liquid from density

Molarity in past papers

3 questions from this chapter have appeared across 3 exam years.