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The steroid hormone estriol contains only C, H, and O; combustion analysis of a 3.47 mg...

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Chemistry

The steroid hormone estriol contains only C, H, and O;combustion analysis of a 3.47 mg sample yields 9.53 mgCO2 and 2.60mgH2O. On dissolving 7.55 mg of estriol in 0.500 g of camphor, themelting point of camphor is depressed by 1.97 ∘C. [For camphor, Kf= 37.7 (∘C⋅kg)/mol.]

i. What is the molecular weight of estriol?

ii. what is the probable formula?

2) The number of moles of ions in 30.0 mL of 3.00 M Na2SO4 is________ moles.

Answer & Explanation Solved by verified expert
3.9 Ratings (613 Votes)
i 1 for non electrolyteTf imKf197 1m377m 197377 00523 mmolality W1000GMWt weight ofsolvent in g00523 7551031000GMWt 05GMWt 755103100000523 05    See Answer
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