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.
