Category: Solution Calculations

Preparation of 10 M Sodium Hydroxide from 50% (w/w) Stock Solution

OVERVIEW A 50% (w/w) Sodium Hydroxide can be purchased from several commercial suppliers. It is a clear colorless liquid and…

Preparation of 1M Hydrochloric Acid From Concentrated Stock Solution (37%, w/w)

OVERVIEW A 37% (w/w) hydrochloric acid can be purchased from several commercial suppliers. It is a clear colorless liquid and…

Molarity of 37% HCl

Molarity of 37% (w/w) Hydrochloric Acid (HCl)

A 37% (w/w) concentrated Hydrochloric acid is a clear colorless liquid. It is an aqueous solution of hydrogen chlori (HCl). The 100 g of 37% (w/w) Hydrochloric acid contains 37 g of HCl. To calculate the molarity, one must first calculate how much HCl is present in 1 L of 37% Hydrochloric acid solution. Once we know the amount of HCl present in 1 L solution, we can calculate the molarity of the solution by dividing the HCl amount by the HCl molecular weight.