CHEM 111 Lecture Notes - Ethylene Glycol, Trigonal Planar Molecular Geometry, Intermolecular Force
Document Summary
You cannot see polarity from a resonance structure. No bond polarity, no polarity at all (same atom, same electronegativity) The two polar bonds point opposite directions and cancel each other out. Ethylene glycol has a molar mass of 62. 07 g / mol and a boiling point of 198 c. Stronger forces in / between molecules / more force higher boiling point. Ethylene glycol is more able to hydrogen bond compared to propanol. You have a 3. 65 l container of carbon monoxide at 298 k and 745 torr. Because we"re using the same amount, we can eliminate n. V2 = (259) (3. 65) (745) / (367) (298) We don"t have to convert to atm because they"re both in torr. We"d just be dividing by the same number. N = (745 / 760) (3. 65) / 0. 0821 x 298. 0. 146 moles x 12. 01 + 16 / 1 mole = 4. 08946 g. Fecl3 (s) fecl2 (s) + cl2.
