Question

Describe, in detail, how to make 3.0 liters of a 3.5 molar HCl solution from an 18.5 molar HCl stock solution.

Answer 1

C1 V1 = C2 V2
18.5 V1 = 3.5 X 3.0
V1 = 10.5 / 18.5 = 0.56 Liter
its mean take 0.56 liter of 18.5 M HCl in a flask and add distilled water into it to make up the volume of 3 liters