Chemistry_1031_day10_021109_actual

Chemistry_1031_day10_021109_actual - General Chemistry I...

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General Chemistry I CHE-1031 Dr. Jonathan M. Smith Wednesday, February 11
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Today 3.9 – 3.10 Empirical Formulas; Molecular Formulas; Balancing Equations Read Ch. 4 section 1-3 In class exam Friday, Feb. 20
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Graphene anybody? Graphane crystal. This novel two- dimensional material is obtained from graphene (a monolayer of carbon atoms) by attaching hydrogen atoms (red) to each carbon atoms (blue) in the crystal. (Credit: Image courtesy of University of Manchester) Graphene, which was discovered at the University in 2004, is a one-atom-thick crystal with unusual highly conductive properties, which has quickly become one of the hottest topics in physics and materials science. It is also tipped for a number of future applications in electronics and photonics. But research published January, 30, 2009 by Professor Andre Geim and Dr Kostya Novoselov, who led the group that discovered graphene in 2004, suggests its uses could be far greater. That's because the scientists, from the University’s School of Physics and Astronomy, have found that graphene will react with other substances to form new compounds with different properties - opening up further opportunities for development in the field of electronics.
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Chemical Quantities and Aqueous Reactions Chapter 4
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The smell of dirty gym socks is caused by the compound caproic acid. Combustion of 0.844 g of caproic acid produced 0.784 g of H 2 O and 1.92 g of CO 2 . If the molar mass of caproic acid is 116.2 g/mol, what is the molecular formula of caproic acid? (MM C = 12.01, H = 1.008, O = 16.00)
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Chemistry_1031_day10_021109_actual - General Chemistry I...

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