Cortisol (? = 362.47 g/mol), one of the major steroid

Chapter 3, Problem 33P

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QUESTION:

Cortisol \((ℳ =362.47 \mathrm{~g} / \mathrm{mol})\), one of the major steroid hormones, is used in the treatment of rheumatoid arthritis. Cortisol is \(69.6 \% \mathrm{C}, 8.34 \% \mathrm{H}\), and \(22.1 \% \mathrm{O}\) by mass. What is its molecular formula?

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QUESTION:

Cortisol \((ℳ =362.47 \mathrm{~g} / \mathrm{mol})\), one of the major steroid hormones, is used in the treatment of rheumatoid arthritis. Cortisol is \(69.6 \% \mathrm{C}, 8.34 \% \mathrm{H}\), and \(22.1 \% \mathrm{O}\) by mass. What is its molecular formula?

ANSWER:

Step 1 of 2

Here, we find the molecular formula of Cortisol.

First. Let's calculate the empirical mass of Cortisol.

Empirical formula of Cortisol \(=\mathrm{C}_{4.2} \mathrm{H}_{6} \mathrm{O}\)

Molar mass of \(\mathrm{C}=12.0 \mathrm{~g}\)

Molar mass of \(\mathrm{H}=1.008 \mathrm{~g}\)

Molar Mass of \(O=16 \mathrm{~g}\)

 

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