According to statistics of recorded crimes in California, seventy five percent are women who are killed by an intimate partner. Moreover, more than eighty percent was being abused by a spouse or a boyfriend (CPEDV, 2007). Domestic or intimate partner violence has been a major …
In many applications, Eastman methyl acetate can be an effective replacement for acetone and other fast-evaporating solvents. Strength?assay Methanol Water Acidity as acetic acid color, PC’s Some common cleaning applications include: universal cleaner LOW-VOCE and environmental cleaners Aerosol carburetor cleaners Paint gun cleaners Cleaners for …
In the experiment of distillation we separated two miscible liquids. The purpose of distillation is to identify and purify compounds. We began our experiment by setting up an apparatus for macroscale simple distillation. We used 60 ml of Cyclohexane/ Toluene. We began with the temperature …
Finding the Ratio of Moles of Reactants in a Chemical Reaction Purpose: The goal of the lab is to determine the mole ratio of two reactants in a chemical reaction (AgNO3 and K2CrO4). However, the formulas for the products are unknown. Introduction: When determining the …
Characterization and Quantification of Active Compounds of Black pepper (Piper Nigrum): AbstractThe objectives of the study were to investigate the presence of phytochemical compounds from the extract of piper nigrum, using methanolic extraction. It showed the presence of alkaloid, flavanoids, carbohydrates, proteins, phenols, phytosterols, and …
My aim is to see how the effect of catalase has on the breakdown of hydrogen peroxide into water and oxygen. 2H202(aq) 2H20(l) + 02(g) My prediction is as you increase the concentration of hydrogen peroxide the catalase will break it down faster and therefore …
“During peace time a scientist belongs to the world, but during war time he belongs to his country”-Fritz Haber Here lies the ashes of the famous chemist Fritz Haber and his first wife Clara. Fritz had a heart attack and managed to recover, but not …
Aim The main intention of this investigation was to determine the various stages of the Atterberg Limits. These included the liquid limit test (LL), plastic limit test (PL), plastic index test (PI), and linear shrinkage (LS) of a soil sample provided by the administration. This …
UNSTEADY STATE HEAT TRANSFER Heat transfer processes are prominent in engineering due to several applications in industry and environment. Heat transfer is central to the performance of propulsion systems, design of conventional space and water heating systems, cooling of electronic equipment, and many manufacturing processes …
Attendance at Pre-lab Meeting Copies of lab pages attached; labeled with name and date, complete information, readable, data recorded matches results given in report| /5| Waste was properly disposed of and lab area was cleaned Evaluation of student performance overall (student was on time, followed …
The fluorite (CaF2) deposits were discovered by prof. Al Amin in 1967 in the areas of Kimwarer, Choff and Kamnaon. He was searching for semi-precious stones, and initially mistook the purple fluorite for gemstone. He therefore collected the sample and took them for analysis in …
Introduction Spectroscopy is the study of the electromagnetic radiation emitted or absorbed by the atoms and molecules. A photon in short is light. Atoms produce light by putting energy in, the electron then becomes excited and goes up an energy level, the electron then falls …
Whether it be the 4th of July, a day at Disneyland, or Chinese New Year, fireworks can be used to appeal to people of all ages, genders, and races. These low explosive pyrotechnic devices are primarily used for aesthetic or entertainment purposes. Fireworks come in …
Introduction Chemical reactions are a part of our daily lives, from rusting metal to making bread to leaves changing colour in the fall. A chemical reaction is the process that occurs when two or more substances combine to produce a chemical change. When a chemical …
Lab Name: Molar Mass by Freezing Point Depression Researcher: Isabella Cuenco Lab Start Date: November 9, 2012 Lab Completion Date: November 9, 2012 INTRODUCTION Purpose: The purpose of the lab is to find the molar mass of an unknown substance by measuring the freezing point …
Henry Moseley: An Annotated Bibliography Todd Helmenstine (November 23) November 23 Science History. Retrieved from: http://chemistry. about. com/od/novemberinscience/tp/november23history. htm In this short analysis of Moseley’s accomplishment, Helmenstine basically summed up the most important facts about Henry Moseley and his discoveries. He shows how Moseley proved …
In developed countries, people spend 90% of their lives inside buildings. During this time, the nature of the enclosed environment has direct impact on the lives of the occupants. It is therefore imperative that the buildings have conducive environment where this will impact the lives …
CALCULATIONS Determining the amount Limiting Reagent used. nlimiting reagent = Molarity x Volume or Mass / Molar Mass Example: Limiting reagent is 5mL of 1. 0 M HCl nlimiting reagent = Molarity x Volume nlimiting reagent = (1. 0 [mol/L]) x 0. 005 [L]) = …
Man loves food and loves to eat. His appetite is always good and in some cases, he will eat food even if he is not hungry especially if the food is tasty. Of course, food has to get into the blood to be carried to …
Acid rain is formed when certain gases dissolve in rainwater to form acids. Acid rain by definition in the Chemistry book states: Rainwater that has become excessively acidic because of absorption of pollutant oxides, notably S03, produced by human activities (1). There are airborne pollutants …
Molecular spectroscopy is a technique that is used to analyze the elements or compounds found In substances. This analysis Is conducted with the help of spectral instruments by measuring the radiation intensity as a function of the wavelength. The spectral instruments used in molecular spectroscopy …
Enzymatic Activity of Salivary Amylase Ong, Janela Rose I. ; Paguia, Maria Tricia C. ; Placente, Dax Daven A. ; Posadas, Grace Catherine A. 3Bio3-Group 8 Department of Biological Sciences, College of Science University of Santo Tomas, Espana, Manila 1008 Abstract This experiment aims to …
On 4th of January,2010, Dubai, where there was merely wind-blown litter a coevals ago, witnessed the gap ceremonial of the universe ‘s tallest edifice, ” Burj Khalifa ” .A superb work of art with hard structural jobs took 1,325 yearss to completion since the start …
Defective and obsolete electronic equipment. Electronic waste, e-waste, e-scrap, or waste electrical and electronic equipment (WEEE) describes discarded electrical or electronic devices. There is a lack of consensus as to whether the term should apply to resale, reuse, and refurbishing industries, or only to product …
The first step in the identification process is generally obtaining isolation. A usual isolation technique for isolation is the streak plate. With this method a small droplet of culture is spread over the surface of the medium in a pattern that gradually thins the sample …
A sample of oxygen of mass 25. 0 g is confined in a vessel at 0°C and 1000. torr. Then 6. 00 g of hydrogen is pumped into the vessel at constant temperature. What will be the final pressure in the vessel (assuming only mixing …
1. 1. 1. Leather industrial waste: Prominent effectiveness of leather industry is amplified by high input and expenditure but on other side it causes huge waste of resource, incredible environmental pollution and biological chain destruction. Streams of gaseous, liquid and solid waste are resulted by …
Acid-Base Titration Objectives: 1. To titrate a hydrochloric acid solution of unknown concentration with standardized 0. 10M sodium hydroxide. 2. To utilize the titration data to calculate the molarity of the hydrochloric acid. Materials: See handout for more info. Procedure: See handout for more info. …
Brain’s “negative thinking” and “negativity” refers to those events that are not constructive and negate our feelings and desires. Conniff’s ideas on negativity stresses that even with all positive things in life, one negative thought or event becomes the focus of attention of a person. …
Introduction Many people nowadays are urged to be aggressive, to get ahead of the rest and to be number one. We are pulled by media toward self-centered pleasures. So many commercials show us a lifestyle of pleasure and according to them can makes us happy. …
Conjugation
The word "conjugation" is derived from a Latin word that means "to link together". In organic chemistry terms, it is used to describe the situation that occurs when π systems (e.g. double bonds) are "linked together". An "isolated" π (pi) system exists only between a single pair of adjacent atoms (e.g. C=C)
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.
Physics
Chemical physics is concerned with the application of the concepts and theories of physics to the analysis of chemical systems and their physical behaviour. While also at the interface between physics and chemistry, it is distinct from physical chemistry.
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