Calculate the amount of CrCl3 required to prepare 500 ml of 5M solution.

Determine the required amount of a substance for preparing a solution.

To do this, multiply the volume of the solution by its molar concentration.

In order to prepare such a solution, it is necessary to weigh and dissolve 0.5 x 5 = 2.5 mol of salt in water.

Let’s calculate the required weight of salt.

To do this, we multiply the molar weight of the salt by the chemical amount of the substance.

M CrCl3 = 52+ 35.5 x 3 = 158.5 grams / mol;

m CrCl3 = 2.5 x 158.5 = 396.25 grams;