'H bond' diaporamas de présentation

The Chemistry of Acids and Bases

1.08k views • 74 slides

Infrared Spectroscopy

Infrared Spectroscopy . Annenberg World of Chemistry #10 Signals from Within [8:55-20:29] Infrared Spectroscopy http ://www.learner.org/resources/series61.html. Infrared Spectroscopy. region of infrared that is most useful lies between 2.5-16 m m (4000-625 cm -1 )

1.24k views • 53 slides

Natural Gas: An Alternative to Petroleum?

?. Natural gas reserves: ~ 60 years Petroleum reserves: ~ 40 years. ?. Combustion of natural gas releases more energy per CO 2 molecule than that of petroleum. ?. Combustion of natural gas releases more energy per gram than that of petroleum. ?.

580 views • 37 slides

409 views • 31 slides

Reactions Involving Free Radicals

Reactions Involving Free Radicals. Free radical reactions involve one electron species, frequently generated by homolysis (shown below). Radical reactions can be divided into three steps: 1) Initiation 2) Propagation 3) Termination. Weaker bonds are more readily cleaved by homolysis.

466 views • 31 slides

Carboxylic acids and their Derivatives (chapter 36)

520 views • 26 slides

WM4 Instrumental analysis

442 views • 22 slides

363 views • 19 slides

Fig. 2-4, p. 22

Fig. 2-4, p. 22. Seawater. Human. Hydrogen 66.0% Oxygen 33.0 Carbon ? 0.1 Nitrogen ? 0.1 Phosphorus ? 0.1 Calcium ? 0.1 Sodium 0.3 Potassium ? 0.1 Chlorine 0.3. Hydrogen 62.0% Oxygen 24.0 Carbon 12.0 Nitrogen 1.2 Phosphorus 0.2 Calcium 0.2

266 views • 14 slides

Medicines and drugs

Medicines and drugs. Depressants. depressants. What are depressants? Examples? Any use for them? Social and physiological effects of use/abuse?. depressants.

268 views • 13 slides

Medicines and drugs

Medicines and drugs. Depressants. depressants. What are depressants? Examples? Any use for them? Social and physiological effects of use/abuse?. depressants.

301 views • 13 slides

Benzyl Alcohol

Benzyl Alcohol. 2012/07/11. Geometries at the B3LYP/ aug -cc- pVTZ level. 2. 1 ( gauche cis ). 4 ( plana r) (Cs symmetry). 3. Dissociation pathways in the ground electronic state at the MLSE(C1)-M06-2X. Calculated reaction energetics (kcal/ mol ) in the ground electronic state.

309 views • 13 slides

Previously in Chem104: How K a relates to K b and pK a to pK b

Previously in Chem104: How K a relates to K b and pK a to pK b More ways to use the K w circle Group worksheet on The Most Important Equilibrium on the Planet (Part 1). Today in Chem104: structural characteristics of acids & bases

271 views • 13 slides

Quick quiz 3

Quick quiz 3 . What is the typical size of an atomic nucleus?. 10 -17 m 10 -15 m 10 -13 m 10 -11 m 10 -9 m. What is the typical size of an atom (and almost exactly the O-H bond length in water). 10 -16 m 10 -14 m 10 -12 m 10 -10 m 10 -8 m.

188 views • 12 slides

Reactions of Alkanes

322 views • 9 slides

Valence Bond Theory:

Valence Bond Theory:. Basic Overlap of orbitals in H 2 , HF and F 2. Important points for orbital overlaps (valence bond):. 1. Orbitals overlap to form a bond. Theories of Bonding. 2. Two electrons fit in the overlapping space. Usually each atom supplies 1 electron.

389 views • 8 slides

Designing a Hand Warmer

Designing a Hand Warmer. http://group.chem.iastate.edu/Greenbowe/sections/projectfolder/flashfiles/thermochem/solutionSalt.html.

420 views • 7 slides

Alkenes and Alkanes

Alkenes and Alkanes. Alkanes have a single bond and their main source is from crude oil. Alkanes have a double bond. They are Hydrocarbons. They are formed by Cracking. SATURATED OR UNSATURATED. ALKANES are have single bonds and are described as SATURATED

254 views • 5 slides

atomization : the process of breaking a molecule into its individual atoms

168 views • 4 slides

Phys Rev. Lett . 104, 205901 (2010)

Microscopic Dynamics and Transport of Hydrogen in Proton Conducting Oxides Gunter Luepke , College of William and Mary, DMR 0855081.

129 views • 2 slides