Chemistry Essay Examples Page 15
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Chemistry-Reactivity of Metals
Chemistry
A new metal called Taffies was found to possess properties similar to the elements of Group 2. Plan and design an experiment to ascertain whether this element should be placed above or below magnesium in Group 2. Hypothesis : If Taffeta reacts with cold water to form Taffies hydroxide and hydrogen then Taffies is above…
Inferring Relative Permeability from Resistivity Well Logging
Chemistry
Inferring Relative Permeability from Resistivity Well Logging Introduction Permeability is a chattel of a spongy medium that measures the capacity of a substance to transmit fluids. Generally, permeability that is applied in petroleum industry is steady in Darcy’s flow equation which compares pressure gradient, flow rate and fluid properties. However, a formation has permeability regardless…
Thin-Layer Chromatographic Analysis of Drug Component
Chemistry
Scientific method
Techniques
TLC is used because it is “sensitive, fast, simple and inexpensive analytical technique”2 (Mohrig 151). The unknown solid (unknown #3 in this case) used in the experiment was obtained and added to a 2. 5ml of Ethanol/dichloromethane in a test tube. This was the solvent used in the experiment because Dichloromethane volatility and ability to…
Comparison of the Heavy Metal Bioaccumulation Capacity of Epiphytic Moss and Lichen
Chemistry
Biomonitors are organisms used to monitor pollution and air quality in specific areas. Air pollution can cause the bioaccumulation of elements, especially heavy metals, into these organisms. This makes them perfectly suited for studying several parameters that would give an idea about the degree of air pollution in that area. In this study, the heavy…
Dow Chemical Co. V United States
Chemistry
Ermina Dedic Legal Brief 1 Name of Case: Dow Chemical Co. v United States. Court: U. S. Supreme Court Citation:476 U. S. 227 (1986) Parties and their roles:Dow Chemical (Plaintiffs/Petitioner) and United States (Defendants/ Respondents) Facts:Dow Chemical operates a two-thousand-acre chemical plant at Midland, Michigan. The facility, with numerous buildings, conduits, and pipes, are visible…
Types of Chemical Reactions
Chemistry
Chemical reactions are everywhere! The food you eat and the oxygen you breathe change from during reactions inside your body. When sugar, water, and yeast are mixed into flour to make bread dough, a chemical reaction takes place. Chemical reactions occur when substances go through chemical changes to form new substances. Often, you can tell…
Thallium Element Analysis
Chemistry
Nature
My element was Thallium. It is atomic number 81.It has 81 protons andelectrons and 123 neutrons. Thallium has a mass of 204.3833 atomic mass units. Its symbol is Tl. It resides in Group IIIA of the periodic table. That is thealuminum family. Thallium has a bluish color after exposure to the air. It isa very…
Radon- Naturally Produced Radioactive Gas
Chemistry
Pollution
Safety
Radon is earth’s only naturally produced radioactive gas. It comes from the breakdown of uranium in soil, rock, and water. Radon has no odor, no taste, and can not be seen. When it comes indoors it can become a health hazard. Radon can enter your house through cracks and openings in the foundation, floor, and…
Testing Temperature Affects on a Glow Stick
Chemistry
Physical chemistry
Temperature
Thermodynamics
Water
The visible radiation from a glow stick will snuff out more rapidly at higher temperatures because temperature affects the rate of the chemical reaction. Question: Will a glow stick snuff out more rapidly while in a higher temperature? Purpose: To find if a freshness stick will decease out quicker in a cold temperature or a…
Determining the Acid in an Aspirin Tablet
Chemistry
Distillation
Titration
Determining the Percentage of 2-ethanoylhydroxybenzoic Acid in an Aspirin Tablet Introduction and Aim: An Aspirin tablet is an analgesic; therefore the purpose is to relieve pain and due to it also being an antipyretic its other tenacity is to lower the body temperature. An experiment was carried out on the basis of calculating the percentage…
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| description | Chemistry is the study of substances—that is, elements and compounds—while biology is the study of living things. ... Thus chemistry involves the study of the atomic composition and structural architecture of substances, as well as the varied interactions among substances that can lead to sudden, often violent reactions. |
| quotations | “Stevia does something funny to the chemistry of my mouth. There’s no fooling a taste bud, in my experience.” “Chemistry can be a good and bad thing.” -Adam Sandler. “A neutron walks into a bar and asks how much for a drink. |
| information | Conjugation: In chemistry, a conjugated system is a system of connected p orbitals with delocalized electronsdelocalized electronsIn chemistry, delocalized electrons are electrons in a molecule, ion or solid metal that are not associated with a single atom or a covalent bond. … In quantum chemistry, this refers to molecular orbital electrons that have extended over several adjacent atoms. Chemistry journals: Journal of the American Chemical Society, Journal of Materials Chemistry A, ChemComm, Chemistry—A European Journal, Kinetic energy: Kinetic energy is the energy associated with objects in motion. Potential energy is the type of energy associated with an object’s potential to do work. Chemical energy is the type of energy released from the breakdown of chemical bonds and can be harnessed for metabolic processes., Chemistry Books: The Disappearing Spoon: And Other True Tales of Madness, Love, and the History of the World from the Periodic Table of the Elements, The Elements: A Visual Exploration of Every Known Atom in the Universe, CRC Handbook of Chemistry and Physics, Chemistry for Dummies, Molecules: The Elements and the Architecture of Everything, Organic Chemistry as a Second Language, Napoleon’s Buttons, Periodic Tales, Organic Chemistry I For Dummies, Organic Chemistry I Workbook for Dummies, Advanced Organic Chemistry: Part A: Structure and Mechanisms, Organic Chemistry, Introduction to general, organic, and biological chemistry, The Essential Laboratory Manual, An Introduction to Medicinal Chemistry, Organic Chemistry as a Second Language, The Double Helix: A Personal Account of the Discovery of the Structure of DNA |
