Human Pregnancy Gestation

As the problem of search for the molecular formula for this?

Progesterone, which contains only carbon hydrogen and oxygen, is a steroid hormone involved in the female menstrual cycle, pregnancy (supports gestation) and embryogenesis of humans and other living things. Combustion analysis of a 1.893 – ( rm g) sample of progesterone produces 5.563 g CO ((2)) and 1.627 g ((H) 2 (O)). The molecular weight of progesterone is 314.46 g / mol. Find the formula for Progesterone.

Mass in C 5.563g CO2 molar mass of CO2 = Molecular weight 44.019 12.011 C = Mass in C 5.563g CO2 = 5.563 * C = 12.011/440.19 1.5179g 1.627g H2O Molar mass H Mass H2O = 18.015 Moal mass H = 1.008, 2.016 2H = H in H2O = 1.627g Mass 2.016/18.015 * 1.627 = 0.18207 g mass HO = 1.893 – (1.5179 0.18207) = O 0.193027g Divide by atomic mass: C = = = = 0.1264 1.5179/12.011 H O = = 0.01206 0.180625 0.18207/1.008 0.193027/15.999 number of very small parts: C = 10.5 H = 15 O = 1, multiply by 2 C21H30O2 bring up to whole numbers C = 21 H = 30 O = 2 = molecular formula = C21H30O2 C21H30O2 Molar mass 314.4636 g / mol molecular formula =

Human Embryo Development.mov

An Exposition of the Signs and Symptoms of Pregnancy, the Period of Human Gestation, and the Signs of Delivery …

An Exposition of the Signs and Symptoms of Pregnancy The Period of Human Gestation. $12.95 This is a pre-1923 historical reproduction that was curated for quality. Quality assurance was conducted on each of these books in an attempt to remove books with imperfections introduced by the digitization process. Though we have made best efforts – the books may have occasional errors that do not impede the reading experience. We believe this work is culturally important and have elected to bri…

An Exposition of the Signs and Symptoms of Pregnancy The Period of Human Gestation. $43.95 This is a pre-1923 historical reproduction that was curated for quality…

Gestation $24.38 Gestation