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This 3 page Class Notes was uploaded by Abby Notetaker on Friday January 1, 2016. The Class Notes belongs to BIO 182 at Arizona State University taught by Brandon Bang in Fall 2016. Since its upload, it has received 33 views. For similar materials see General Biology in Biology at Arizona State University.
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Date Created: 01/01/16
Abby Davidson Molecule Outline November 7, 2014 Ozone What is it o Inorganic molecule o Chemical formula OO2 also known has O3 o Distinctively pungent smell o Allotrope of oxygen much less stable than the diatomic allotrope O2 o Marvel of Nature o Protects our planet from harmful ultraviolet radiation Who discovered it and how o Dutch Chemist, Van Marum o Van is probably the first to detect ozone gas sensorially o Mentioned by the name decennia later in writing of Schonbein dates back to 1840 o Discovery presented to University of Muchen Structure o Bend molecule o O-O distances are 127.2 pm o O-O-O angle is 116.78 degrees o Center atom is sp^2 hybridized with one lone pair o Polar Molecule o Dipole moment of 0.53 D o Resonance Structure How is it made o Naturally produced in stratosphere by a two-step reactive process o Formed from dioxygen by action of ultraviolet light o Also atmospheric electrical discharges o Is present in low concentrations throughout the Earth’s atmosphere o Ozone makes up 0.6 ppm of the atmosphere Uses o Natures most powerful disinfectant and oxidant o Kill microbial contaminates o Destroys mildew, mold, and odor o End result is clean breathable oxygen o Air purifiers o Purifies and sanitized the air we breathe, the water we drink, and the food we eat o Medical therapies o Remarkable antibacterial, anti-viral, and antifungal activity How was it found o Experiments from Van Marum and Finalized by Schonbein experiment Physical properties o Molar Mass-48.00 o Density- 2.144mg cm^-3 o Colorless bluish gas o Blue when liquefied o Slightly soluble in water o 161 K it condenses to form a dark blue liquid-Boiling point o It is dangerous to allow this liquid to warm to its boiling point o Temperatures below 80K it forms a violet-black solid-Melting Point o Diamagnetic- all paired electrons Chemical properties o Decomposition o Oxidizing property o Oxidation reactions o With Mercury o Reducing property
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