Question

A standard solution is prepared for the analysis of fluoxymesterone(), an anabolic steroid. A stock solution is first prepared by dissolving 10.0 mg of fluoxymesterone in enough water to give a total volume of 500.0 mL. A aliquot (portion) of this solution is diluted to a final volume of 100.0 mL. Calculate the concentration of the final solution in terms of molarity.

Short answer

Answer

The concentration of the final solution in terms of molarity is .

Step-by-step solution

Definition

A solution's molarity is a concept that refers to the amount of solute contained in one litre of the solution. It may be stated mathematically as follows:

Molarity

Determination of initial molarity of

Let’s calculate the initial molarity of the fluoxymesterone,

Moles of

Let’s calculate the molarity of the fluoxymesterone,

Moles of

Determination of final concentration of fluoxymesterone

The next step is to compute the oxymesterone final concentration after dilution. The following equation may be written if is the initial molar concentration of the solution, is the initial volume of the solution, is the final molar concentration, and is the final volume of the solution.

Let’s find the following values for the fluoxymesterone solution,

Therefore the final concentration is.