Chemical shift

of tactics called the Four Dog Defense. Chemical companies and other manufacturers use this Four Dog Defense to misguide consumers and to hide the fact that their products are hazardous to both health and the environment. The first stage of the Four Dog Defense is ‘I don’t have a dog’. According to the Sustainable Food Trust, the company claims that…

derivative of the amino acid -carboxamide (VFCA-I toVII ) synthesized through coupling of N-Phthaloyl amino acid chloride derivative (2a-2g- synthesis reported in chapter-1) with 1-(2-amino-1-(4-methoxyphenyl) ethyl)cyclohexanol (VF-II). All the chemicals used are of laboratory grade and purchased from local commercial suppliers and used without further purification. Melting points determined…

Calcium chlorate is a very dangerous chemical. It has the ability to harm whoever is around it. It is important to be extremely cautious and pay close attention to what you are doing when working with this product. This chemical may seem a bit scary because of the negative effects it can have on a person, but there are good things about it too! Calcium chlorate is produced on an industrial scale. It is produced by the chlorination of milk of lime. It is produced by passing chlorine gas through a…

In this model no any chemical reaction is considered.(Barba et al.) modelled gasification by considering it to occur in two steps, in the first of which the biomass is decomposed at high temperature to give primary gas and carbonaceous residue and in the second there is modification in primary gas due to water gas shift reaction and steam reforming reaction. The total Gibbs free energy of a system is a function of Gibbs…

solubility in water, hexane and ethyl alcohol. Also, its density and boiling point were obtained and compared to the theoretical values. Theory Chemical substances can be identified through investigation of their chemical and physical properties and then comparing the experimental values to the standard values. Physical properties do not change the chemical composition of the substance. Physical properties include; density, boiling point, and solubility, etc. The density of a substance is…

Introduction Molecular orbital theory allows for the relation between the nature of chemical bonds and the properties of molecules.1 Many times, the frontier molecular orbitals, named HOMO and LUMO, are analyzed in order to predict these properties. In this lab, each double bond corresponds to a molecular orbital. The HOMO, or highest occupied molecular orbital is the most energetic (highest n-value) orbital that contains an electron. The n-value is equal to the number of double bonds present.…

Between 1942 and 1953 there was active dumping of chemicals waste into the canal. Document submitted by Hooker to New York interagency task force of hazardous waste, showed that an estimate of about 21,800 tons of chemicals waste from the manufacturing process of the company was dumped in the canal. “These waste were mainly organic pesticide residues, waste solvents, fly ash and process…

Introduction Equilibrium is the concept that in a chemical reaction where both the forward and reverse reactions occur, equilibrium is reached when both reactions are occurring at the same rate, thus once a reaction is at equilibria both the forward and reverse reactions are occurring at the same rate. For a given Chemical Equilibrium at a given temperature, keq can be calculated that will be constant no matter the initial values of the reactants and products. For a reaction: the equilibrium…

The heterocyclic compounds naming tetrahydrocarbazoles having the significant biological properties. The newly substituted tetrahydrocarbazole derivatives were prepared from substituted phenylhydrazine and cyclohexanone in glacial acetic acid under reflux. These intermediates on reaction with substituted aromatic acid chlorides in alkaline media finally converted to N-Substituted tetrahydrocarbazoles. Fifteen compounds are synthesized and charaterized by their melting point (MP), IR, NMR, MS…

Exercise's Effects on Cellular Respiration Cellular respiration is a chemical reaction that creates energy through your cells. It requires inhaled oxygen and expels carbon dioxide. This carbon dioxide can be detected through the use of bromothymol blue (BTB), which is a pH indicator solution. When the carbon dioxide is exhaled into the solution, BTB reacts as it would with any other acid, and turns from blue to yellow. The higher the level of carbon dioxide, the more quickly the color changes…