Chemistry Essays and Term Papers

with the respiratory system; it affects one in four primary school children, one in seven teenagers, and one in ten adults in Australia (Bryant et al, 2002). There are many mediators involved in the pathogenesis of an asthma attack, and the severity…

each type of bond arises and the evidence for the existence of each. Comment on their strengths in relation to the types of atoms involved; the covalent bond and relative to each other. Use the concepts of different types and strengths of intermolecular…

people quit tobacco smoking? A Controlled Trial of Sustained-Release Bupropion, a Nicotine Patch, or Both for Smoking Cessation. Jorenby, Douglas E.; Leischow, Scott J.; Nides, Mitchell A.; Rennard, Stephen I.; Johnston, J. Andrew; Hughes, Arlene…

the right place at the right time may be common features of successful people. Despite the best efforts of scientists, some discoveries they make are the purely result of serendipity, an unexpected result of an experiment or an accidental discovery…

prominent chemists of all time. Mendeleyev was born in Tobolsk, Siberia on February 7, 1834. He was the 14th and last child of Maria Dmitrievna Korniliev and Ivan Pavlovitch Mendeleev. His father was a teacher at a local gymnasium, but died while…

the usage of infrared spectroscopy and to identify the unknown compound # 53 using Fourier-Transform Infrared Spectrometer. From the IR spectroscopy, specific functional group peaks are noted and used to aid the identification of the unknown organic…

of the concentration an of the rate of reaction. Introduction. We are trying to find out the affect of acid concentration on the rate of reaction, we are using 2, 1.5, 1, 0.5, 0.25 Molar acid. In our experiment, we are reacting it with sodium…

drinking water. Now, most people, both young and old, drink water from bottles. In fact, the demand for bottled water is so great that it has become a multimillion-peso business in the country today. Why is there a substantial growth in the demand…

smoking in hotels will be enforced by late October in 2007. Some people think that this is too soon, while others believe it is not soon enough. Smoking is the largest cause of preventable death in developed countries. More than 700,000 people…

of the reactants affect the rate of reaction Aim To find out how the concentrations of the reactants affect the rate of reaction Scientific knowledge Reactions can go at all sorts of different rates e.g. a slow reaction would be the rusting…