Problem: A standard solution is prepared for the analysis of fluoxymesterone (C 20H29FO3), 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 100.0-μL 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.

🤓 Based on our data, we think this question is relevant for Professor Mallouk's class at UPENN.

FREE Expert Solution

Molarity(M)=moles of soluteLiters of solution


Calculate the molarity of stock solution, M1:


Molarity = 10 mg C20H29FO3 ×10-3 g1 mg×1 mol C20H29FO3336.44g C20H29FO3500 mL×10-3 L1 mL

5.94 x 10-5 M


For dilution:


M1V1=M2V2

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Problem Details

A standard solution is prepared for the analysis of fluoxymesterone (C 20H29FO3), 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 100.0-μL 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.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Dilution concept. If you need more Dilution practice, you can also practice Dilution practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Mallouk's class at UPENN.

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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.