Lingrui Ge Lab report October 18, 2015 Experiment #5 Separation and Qualitative Analysis of Cations CHEM 1315-088 Purpose of the experiment: To identify the substances that are present in a mixture. Materials: Test Solutions and Substances 6 M hydrochloric acid, HCl Sodium bismuthate, NaBiO3 (s) 6 M nitric acid, HNO3 0.1 M potassium thiocyanate, KSCN 6 M ammonia/ammonium hydroxide, NH3 3% hydrogen peroxide, H2O2 6 M sulfuric acid, H2SO4 Sodium bismuthate, NaBiO3 (s) 6 M sodium hydroxide,…
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…
Enzymes are biological catalysts that speed up chemical reactions and are inexhaustible. They can increase the rate at which reactions occur by up to a factor of 10^19. The material that is being acted on by the enzyme is called a substrate. Enzymes work because they can bind to the transition state better than the substrate, which lowers the activation energy causing the speed of a reaction to accelerate. The enzyme combines with a substrate at the enzymes active site which creates the enzyme…
Enzymes are macromolecules that act as a catalyst in order for chemical reactions to occur. Their function is highly dependent on what the structure of the enzyme because they have things called active sites that recognize specific substrates. A substrate is a molecule that fits into the active sites of enzymes so a reaction can occur. For example, sucrose (substrate) fits into sucrase (enzyme) where hydrolysis occurs consequently splitting sucrose into glucose and fructose. However, in our…
elements found in nature all over the world because it can be chemically reacted with many other elements and compounds. The purpose of this experiment was to identify the different reactions that occurred through the lab and the different types of reactions. Throughout the lab, copper was put through series of reactions to see the different combinations and how its properties were affected. Materials and Method: The first part of this lab was to set up the apparatus to properly execute this…
formula weight of the dihydrate form is 170.48 g/mol. Chemical properties include being able to be soluble in ammonia. Synthesis Methods of Copper (II) Chloride There are different ways this certain compound can be synthesized and prepared. If combining and heating elemental copper and diatomic…
make up large amounts of living organism which are called polymers which are made up of many different monomers. An enzyme is a biological catalyst that increases the rate of a reaction by lowering activation energy. Activation energy that the enzyme uses id an energy barrier that must be overcome before a chemical reaction can proceed (Lecture, 4/28). Enzymes are very specific and only work with one particular substance called a substrate molecule using an activation site, this is called the…
Abstract. The theoretical treatment of the equilibrium structure of the derivatives was based on the DFT method using the functional B3LYP with the base 6-311 ++ G (d, p). To distinguish the molecular electrostatic potential surface (MESP), we used the principle of HSAB (Hard Soft Acid and Base), in order to have the centers of activity of a molecule and the effects of substitution on the systems of pyrazolooxazine. These have anti-inflammatory activities. In our work, we have applied methods of…
enzymes speed up chemical reactions, and every chemical reaction…
Corrosion, otherwise called rusting is defined as a natural process that changes over a refined metal to a more chemically stable shape, for example, its oxide, hydroxide, or sulfide. It is the slow destruction of materials (generally metals) by a chemical reaction caused by the environment. Corrosion is basic to ponder in two perspectives. Right off the bat, financial, which including the lessening of material misfortunes coming about because of the squandering ceaselessly or sudden…