Vi Lap Tran WRT 990 First Draft Environmental pollution Society is being civilized every time; technology is also being invented every day. Thus, human life’s quality has been developing. However, the increasing of environmental issues isn’t still solved, and one of the most important problems …
Relative Reactivity of Alkyl Halides Introduction Nucleophilic substitution of alkyl halides can proceed by two different mechanisms – SN2 and SN1. The purpose of the experiment was to identify the effects that the alkyl group and the halide-leaving group have on the rates of SN1 …
Title: Finding the Ratio of Mole of Reactants in a Chemical Reaction Purpose of Lab: To find the coefficients of two chemical reactants that appears in a balanced chemical equation using the continuous variations method. Pre Lab Questions: 2AgNO3(aq) + K2CrO4(aq) > 2KNO3(aq) + Ag2CrO4(s) …
In order to cut downing fuel ingestion and run into the emanation criterions, many betterments has been made. The illustrations of the betterments are combustion schemes, fuel injection system, exhaust emanation and fuel quality. There are four possible beginnings of atmospheric pollution from the car. …
Objective The objective of this experiment is to perform a steam distillation using a microscale distillation apparatus and isolate a natural product from cloves. Introduction By performing steam distillation we can isolate eugenol at lower temperature than its usual boiling point of 248 degree Celsius. …
” Champion aren’t made In the gyms. Champions are made from something they have Inside them – a desire, a dream, a vision” (Muhammad All). Sports are the basic of everything that a person learns in his/her childhood. There is no known date or time …
A chiller is a machine that removes heat from a liquid via a vapor-compression or absorption refrigeration cycle. A vapor-compression water chiller comprises the 4 major components of the vapor-compression refrigeration cycle (compressor, evaporator, condenser, and some form of metering device). These machines can implement …
Abstract This experiment gave a visual understanding of osmosis and diffusion. The first experiment proved that solutes would move down a concentration gradient if permeable to the selective membrane. The second experiment proved different solute concentrations affect the movement of water, depending on the solute …
This essay is about how sunblokck works and the correct methods to use it. It also emphasizes the danger of the sun rays ( UVA/UVB). Many experts have different opinions on the subject but in reality is up to us as individuals to either use …
There are six major classes of nutrients: carbohydrates, fats, minerals, protein, vitamins, and water. These nutrient classes can be categorized as either macronutrients (needed in relatively large amounts) or micronutrients (needed in smaller quantities). The macronutrients include carbohydrates (including fiber), fats, protein, and water. The micronutrients are minerals and vitamins. The macronutrients (excluding fiber and water) …
Bubble-ology Introduction Everybody loves bubbles! But what makes bubbles form, and float up in the air until they pop? A soap bubble The secret to a good bubble is something called surface tension, an invisible bond that holds water molecules together. Water is a polar …
2.0 Literature Review 2.1 River Water Quality in Ireland National studies of Irish rivers have been carried out since 1971. In 1971, 2,900km of the river channel was surveyed. The studies consisted of chemical and biological appraisals. This was before the constitution of the Environmental …
Catalase- This is an enzyme found in food such as potato and liver. It is used for removing Hydrogen Peroxide from cells. Hydrogen Peroxide is the poisonous by-product of metabolism. It speeds up the decomposition of hydrogen Peroxide into oxygen and water. It is able …
ANSWER OF QUESTION ( A ) :Mining has really negative effects on the environment. Environmental ethical theories have formed in western states in 20Thursdaycentury. Sustainable is really necessary for the overall development of the state and it means sustain and development. It requires the reason …
Filtration Filtration may be defined as a process of separation of solids from a fluid by passing the same through a porous medium that retains the solids, but allows the fluid to pass through. ” The suspension to be filtered is known as slurry. The …
Introduction The purple pink solution of potassium permanganate (MnO4 -) is reduced by glucose to a colourless solution of manganese ions (Mn2+). MnO4- + 8H+ + 5e- Mn2+ + 4H2O The time taken for the loss of colour from a standardised solution of permanganate is …
Introduction In this coursework I will be talking about the experiments, which I have done over two weeks. This gave different results by using different concentrations of hydrochloric acids (HCl) and indigestion relief tablet. I will also mention the time which was taken in the …
The Ka and Molar Mass of a Monoprotic Weak Acid Chemistry Lab 152 Professor: James Giles November 7, 2012 Abstract: The purpose of this experiment was to determine the pKa, Ka, and molar mass of an unknown acid (#14). The pKa was found to be …
The blade constituent in the liquidizer is map to suppression and blending the ingredient with a really fast revolving velocity. First we need to understand the construction of the blade to enable the blade execute the procedure like sliting and softening. We know blade necessitate …
Toxicology is defined as that branch of science dealing with poisons. According to Hodgson (2010), a “poison can be defined as any substance that causes a harmful effect when administered, either by accident or by design, to a living organism” (p. 3). Toxicology also includes …
Since the active site for all molecules of one enzyme will be made up of the same arrangement of amino acids, It has a highly specific shape. Generally, there is only one active site on each enzyme molecule and only one type of substrate molecule …
Antoine Lavoisier was born in the year 1743 to a wealthy family and inherited a huge fortune at the age of five after the demise of his mother. A noble man by profession has contributed a lot in both chemical and biological science. Antoine Lavoisier …
Introduction: Suspensions are solid dipersion of insoluble or sparingly-soluble drugs, in aqueous like keltrol or oily vehicles such as emulsion. Suspension are used for oral administration, external application to the skin (topical) or parenteral administration.These particles suspended into liquid medium do not dissolve but have …
Abstract The purpose of the study is to synthesize salicylic acid from the ester, methyl salicylate, and determine the acid’s dissociation constant and purity. The ester was converted to salicylic acid by base hydrolysis. The products were refluxed and recrystallized, to ensure maximum purity, and …
Chemical Aspects of Life and Spit Lab Formal Report 1. Abstract The objective of the Reducing Sugar Test was to test if the substance has a reducing sugar in it by adding Benedict’s solution and heating it, there would be a color change if a …
Flame Test Lab Question: When a compound is placed in the flame of a burner, what happens to the color of the flame? Hypothesis: When the compound is placed in the flame, the flame changes color depending on the chemical compound. When they’re heated, they …
Introduction: ? Neutralization reactions involve the reaction of an acid and a base to produce a salt (ionic compound) and water. Acid + Base ( Salt + Water ? In this lab, sulfamic acid (a weak acid which contains one acidic hydrogen) will be used: …
The free radical theory was firstly introduced in 1954 by Robert Gerschman and later was developed by Dr. Denham Harman from the University of Nebraska. The term “free radical” is used by the scientists to describe any molecule which is different from conventional molecules. (more…)
Introduction There are a lot of new materials that has emerged and been used by engineers and scientists such as Aerogel, Metal foam, Bioplastic, Carbon fiber, Graphene and others. This is helping engineers build all new types of machines and instruments such as touch screen …
Assessment of synthetic milk exposure to children of selected population in Uttar Pradesh, India Shuchi R. Bhatt1, Dr. Anita Singh2 and S. M. Bhatt3 (Abstract) The present study was carried out keeping in view the recently emerging concern of the adulteration of the natural milk …
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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