An acid is defined as a chemical substance that is capable of forming an aqueous solution with the ability to turn a blue litmus paper red, have a sour taste and form salts when it reacts with certain metals and bases. A substance will qualify to be an acid if it is capable of increasing the number of hydrogen ions when dissolved in water, or the capability of that substance to be deprotonated, act as a proton donor during reactions. A base is a substance that in aqueous solution feels slippery, has a bitter taste, and is capable of ...
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The objective of this experiment was to prepare Beer-Lambert calibration curves for different forms of nitrogen and to determine the concentration of nitrate, nitrite, and ammonia ions in different water samples from the Biscayne Bay.
Introduction
Nitrogen is the most abundant element in the Earth atmosphere. In is not surprising that it is one of the most crucial elements not only to human life but all life on our planet. The chemistry of nitrogen is rather diverse because it can exist in different oxidation levels – from +3 to -5. Due to its large impact on the biosphere, the circulation of ...
Section
Introduction The purpose of this lab was to find the amount and percentage of nickel present in an unknown compound using the "mole method." The unknown nickel compound was dissolved in water and treated with dimethylglyoxime and ammonia solutions to obtain the precipitate of known chemical composition (bis(dimethylglyoximo)nickel(II)), which then was weighed and using this data the amount and percentage of nickel in the initial compound were found. The insoluble Ni(DMG)2 complex is formed in two steps. First, the dimethylglyoxime reacts with hydroxide ion formed through the ammonia hydrolysis to produce dimethylglyoximate anion: C4H8N2O2( ...
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ORDER AN ESSAYABSTRACT
This is a scientific lab report prepared after an empirical observation. The main experiment is the synthesis of 1,4-Dihydropyridine. A simple dihydropyridine from a simple reactant (formaldehyde, ammonium acetate and 2,4-pentanedione ), is synthesized. The final part of this work deals with the determination of reasonable mechanisms for this synthesis.
INTRODUCTION
1,4-Dihydropyridine is an equivalent of nicotinamide adenine dinucleotide (NADH) coenzymes. It exhibits a wide range of biological activities such as calcium channel blocking. This explains their wide use today in pharmacology.
ObjectiveThe aim of this experiment is to synthesize a sample of dihydropyridine and determine the mechanisms for ...
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