How many grams of NaOH do you need to take to prepare a 250ml 0.1M solution?

Let’s find the required amount of substance to prepare this solution.

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

In order to prepare such a solution, it is necessary to weigh and dissolve 0.25 x 0.1 = 0.025 mol of alkali in water.

Let’s find the required mass of alkali.

To do this, we find the product of the molar weight of the salt and the amount of substance.

M NaOH = 23 + 16 + 1 = 40 grams / mol;

m NaOH = 0.025 x 40 = 1 gram;