Formic acid

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    Acid Base Titration Report

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    ACID-BASE PROPERTIES OF SODIUM CHLORIDE, SODIUM FORMATE AND AMMONIUM CHLORIDE INTRODUCTION The objective of this experiment is to examine the definitive characteristics of acids and bases by investigating the characteristics of strong versus weak acids; more specifically, why these differences are important in the process of titrations. In this experiment, there are two titrations performed and measured the pH of one salt solution. This experiment includes a strong acid and strong base titration, weak acid and strong base titration, and the pH measure of a salt solution. In performing a titration, a stir-bar, stir-plate, burette and pH meter. In the process of titration, it is required that the amounts of base added from the burette is as…

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    Phase Polymerization and Their Application in Efficient Organic Light-Emitting Diodes, Advance Materials, Vol. 19, Issue 17, 2007, pp. 2379. [7]. Y. H. Kim, C. Sachse, M. L. Machala, C. May, L. Muller- Meskamp and K Leo. Highly Conductive PEDOT:PSS Electrode with Optimized Solvent and Thermal Post-Treatment for ITO-Free Organic Solar Cells, Advance Functional Materials, Vol. 21, Issue 6, 2011, pp. 1076. [8]. D. Alemu, H. Y. Wei, K. C. .Ho and C. W. Chu. Highly conductive PEDOT: PSS electrode…

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    Titration Experiment

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    Title: To what extent does strong and weak acids differ in affecting the course of titrations. Introduction: The real life application that comes from this experiment links to agriculture. In the past decade, industrial dumping has become a controversial topic. Dumping hazardous wastes into river, ocean, and soil has resulted in a dramatic change in pH of the non-renewable resources and leads to a destruction in the ecosystem. Specially in agriculture, crops cannot grow in acidic soil, so it is…

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    1-pyrenehexanoic acid was used as the 5-carbon linker and fluorescent component of the target molecule "PYRET-5". This molecule was purchased pure along with the sugar Trehalose, the molecule to which the pyrene was to be attached. Other reactants and solvents include HATU, HBTU, N, N-Diisopropylethylamine (DIPEA), sodium azide, Dimethylformamide (DMF), and Diphenyl phosphoryl chloride and were bought pure or used as received. All reactions were run at room temperature (298.15 K) and standard…

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    Organic Acids An organic acid is an organic compound with acidic properties. The most common organic acids are the carboxylic acids, whose acidity is associated with their carboxyl group –COOH. Sulfonic acids, containing the group –SO2OH, are relatively stronger acids. Alcohols, with –OH, can act as acids but they are usually very weak. In general, organic acids are weak acids and do not dissociate completely in water, whereas the strong mineral acids do. Lower molecular mass organic acids such…

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    Lactate Dehydrogenase

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    also analyzed by the same procedure. The activity of LDH was expressed as IU/L. 5.3.1.6 Assay of γ-glutamyl transpeptidase (γGT) γ-Glutamyl transpeptidase in the serum was assayed according to the method described by Orlowski and Meister (1965) [25]. Reagents 1. Tris-HCl buffer: 0.1M, pH 9 containing 0.05M glycylglycine buffer. 2. Buffered-substrate: 0.00625m L-γ-glutamyl-p-nitroanilide in Tris buffer. 3. Acetic acid 4. Standard: 13.8mg of p-nitroaniline was dissolved in 1 litre of distilled…

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    Formalin Case Study

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    typical heat exchanger reactor has short tubes of 1-1.5m and a large shell diameter of 2.5 m or more. A heat exchanger is used to reduce the temperature of the exit gases from the reactor to 110oC and then to the absorption column where water is used as the purification medium. The absorber can be either of packed or tray type. It is necessary to remove the heat of solution plus the residual sensible heat of the feed gases, and this is done by circulating down flow liquid through external heat…

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    An intermediate value could have been selected to detect both the formic acid and methanol. However, both the compounds are polar compounds which show almost same retention time on C18 column [40]. It was also verified from the experimental results that both species give peaks around the same time of 4-5 minutes, so to avoid the confusion and overlapping of peaks, a wavelength of 250nm was selected where Formic acid gives high absorption and gives sharp peaks while methanol does not give any…

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    oxygen3. Serratia Marcescens is a gram negative bacterium. Gram negative bacteria have a thin cell of a single layer of peptidoglycan that is enclosed by an outer membrane. The outer membrane is surrounded by special phospholipids composed of fatty acids called lipopolysaccharides that are attached to a glucosamine…

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    neutralization reaction. A neutralization reaction is a chemical reaction in which an acid and a base react to form an ionic compound (a salt) and water; the resulting pH is closer to 7. The general chemical equation for a neutralization reaction is: Acid + Base Water + Ionic Compound This can also be considered as a double displacement reaction. However, since the reacts are an acid (carbonic acid) and a base (sodium hydroxide) and the products are a salt (sodium carbonate) and water (H2O),…

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