Photographic chemicals

In every society there are rules and guidelines needed to operate properly. Without these expectations, groups of the society wouldn’t know how to act when an encounter with others or know how to behave. These are called norms. Norms are social expectations that guide behavior. Norms explain why people do what they do in given situations. When these norms are broken they are often met with sanctions. Sanctions are the reactions people receive when breaking a norm, they can either be expressions…

This enzyme also catalyzes the hydrolysis of a phosphate group connected to lipids in vivo or to proteins (Wilson et al., 2015). There are three major reasons that enzymes are important. The first reason is that enzymes speed up chemical reactions, and every chemical reaction…

For reactions with a medium, or “one to one”, ratio of iron (II) to hydrogen peroxide, the generation of hydroxyl radicals is also observed. In this particular ratio, the presence of organics does not seem to inhibit the effectiveness of the iron catalyst, as all the iron (II) was converted to iron (III) in a series of experiments. Without the organics present, the hydrogen peroxide reformed by reacting slowly with iron (III) to produce ferric salts, which then degrade into more hydroxyl…

Kitty (Catherine Genovese) We all know New York for being a beautiful city full of attractions, but from all the beauty and exciting things going on terrible things also happen. A women named Catherine Genovese alias Kitty, was brutally murdered with no pity or help from anyone. When this horrible situation happened psychologist were very intrigued to learn why didn’t anyone help or call the police, many People witnessed the crime being committed but did nothing to help. Darley and Lantane…

Introduction: Enzymes have a huge effect on the human body and other organisms. Enzymes are catalysts that are used to accelerate the reaction process by lowering the activation energy. For this experiment the catechol oxidase was extracted from potatoes. The enzyme is called catechol oxidase because the oxygen is reacting to catechol. Catechol oxidase causes the browning of the fruits and vegetables because the compound is toxic to the bacteria. The purpose of this experiment is to…

causing the molecules to vibrate. When the vibrations become strong enough for the molecules to move around and pass other molecules, the compound that is being heated up starts to melt and become a liquid. In this lab, five different ratios of two chemical solids, Urea and trans¬-cinnamic acid, were heated up in a Mel Temp apparatus until the final melting point was achieved. Each substance started as a solid in a capillary tube and when they reached the…

A. Defining Reaction Mechanisms and Catalyst Structure The methane-to-methanol reactions that we aimed to evaluate consist of four critical steps starting from the initial reactants (CH4, NH4+, oxo): C-H activation followed by a hydrogen atom abstraction (HAA) from CH4 to form some combination of the hydrogenated complex, ammonium or ammonia, and a methyl radical; a radical rebound (RR) to form a methanol adduct and ammonium; methanol dissociation from the metal; and catalysis regeneration via…

The periodic table we know today is very organized and accurate. It shows all of the elements that have been discovered and has them arranged and by their chemical properties, atomic masses, and electron configurations. In order to construct the periodic table, every element had to be discovered. Elements such as gold, tin, lead, and copper have been widely known and used since ancient times, however, the first discovery of an element wasn’t made until 1649 by Hennig Brand when he discovered…

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…

Chemical Engineering From all of the engineering fields, I decided to pursue a chemical engineering degree because of its ample area of study. Chemical engineers not only work evaluating and optimizing chemical processes, but also they must analyze production costs and develop reports according to the data they obtain (“Occupation”). As soon as I finished high school, I was interested in studying Chemistry; I wanted to research and experiment. Then, it was when I learned about the engineering…