Chemistry Essays

There are many uses for sound in the world today. Performers can take advantage from a better understanding of sound, architects needs to understand sound to design effective auditoriums, and many new types of technology apply sound recognition. Another use of sound is in the …

Rebekah Worley February 21, 2012 Mitchell Section 4 Biol 311 Staining and Identifying Unknown Bacteria Introduction: The microbiology lab up to this point has been used to teach the students how to stain and identify bacteria. There are several types of staining through which the …

Introduction/background Green tea produced from Camellia sinensis is a popular beverage and is consumed worldwide. Green tea produced from Camellia leaves are mainly consumed in East Asian countries including China, Japan and Taiwan; whereas in western parts and south Asian countries, black tea is relatively …

A solution of cyclohexene, aqueous sodium hydroxide, and benzyl triethylammonium were used to synthesize 7,7 – dichloronorcarane by the following reaction: + CHCl3 + OH – H2O + + Cl – After completion of the experiment, the percent recovery was calculated to be 46. 21% …

The chief map of an engine in all different types that they exist as is to alter the energy stored in fuel as chemical energy into a thermic energy which is a signifier where the engine can pull out and bring forth mechanical work end …

GAS CHROMATOGRAPHY EXPERIMENT The purpose of this experiment is for the student: 1)to learn the general theoretical aspects of gas chromatography as a separation method, 2)to learn how to operate gas chromatographs specific to COD, 3)to become familiar with using the gas chromatograph (GC) to …

The term thermal expansion refers to the increase in size of an object as that object is heated. With relatively few exceptions, all objects expand when they are heated and contract when they are cooled. Perhaps the most important exception to this rule is water. …

Aspect 1:Problem: What is the molar enthalpy of formation of magnesium oxide? Variables: Manipulated: None Responding: None Controlled: Isolation of calorimeter, concentrations of substances involved. Aspect 2: Background Information: Assumptions: Specific heat capacity of water, we assume that the acid has the same qualities as …

Abstract: Create a standardized EDTA solution for use as a titration solution to determine the hardness of water from a single random sample. Introduction: Using a calibrated EDTA solution to determine water hardness from a random sample. Essentially the Na2EDTA solution reacts one to one …

Comprising over 70 % of the Earths surface, H2O is doubtless the most cherished natural resource that exists on our planet. Without the apparently priceless compound comprised of H and O, life on Earth would be non-existent: it is indispensable for everything on our planet …

I always think of doing this not for the benefits for other but for my own. I learn to be more confident, more competitive and more initiative for I know I have my inspiration who gave me everything I need. The strength, courage, will and …

Chromatography was used because of its powerful technique in separating mixtures. In this experiment the Chili pepper pigments was extracted using DCM, the extract was then introduced into the column and eluate was collected, a technique called column Chromatography. Using the Thin Layer Chromatography the …

Mr. Venkatesh Jangala Phone: +91 9985398963 Email: venky. jangala@gmail. com Date of Birth: 23 november 1987 Address: D. NO; 3-578(A),Undavalli centre, Tadepalli(post), Gunturdist – 522501. Languages Known: English, Hindi, Telugu Objective: To be a part of an organization where my skills are put to an …

We did this by titrating Hydrochloric Acid into 10 com of Calcium Hydroxide. As we titrated HCI into the Calcium Hydroxide solution, the phenolphthalein’s pink shade given to the Calcium Hydroxide slowly became clearer until the complete lack of pink color in the solution of …

Our sun is a massive nuclear fusion reactor that generates astonishing amounts of energy. The sun is the largest body in our solar system. It has a gravitational pull causing all other objects in the solar system to orbit it. Since the sun is in …

Thermoregulation is an organism’s capability to maintain its body temperature and metabolism is the process in which energy is transformed within an organism’s body to maintain life. CSUSM comparative animal physiology students contained mice (Mus musculus) and Madagascar hissing cockroaches (Gromphadorhina portentosa) in vacuum tight …

Introduction In order to design all type of buildings, it is necessary to understand the ground condition i.e. soils and rocks which the building foundations are based on. The occurrence of buildings failure, therefore, can lead directly to the problem of underground conditions i.e. bedrock …

Lab Report: Titration Lab Prepare a solution of a given concentration; understand titration including acid-base reactions, pH, stoichiometry and molar equivalence. Chemicals and equipment: NaOH pellets close to purity, HCl 3M, phenolphtalein Beckers, flasks, burette, magnetic or manual stir pHmeter Waste management: The waste disposal …

Overview Carbon – The Backbone of Biological Molecules Although cells are 70–95% water, the rest consists mostly of carbon-based compounds. Carbon is unparalleled in its ability to form large, complex, and diverse molecules. Carbon accounts for the diversity of biological molecules and has made possible …

Factors that Affect the Rate of Reaction of Peroxidase Purpose: To determine the effect of various factors on the rate of reaction between an enzyme and its substrate, and also to determine the optimal ranges under which the enzyme activity is maximized. Also to determine …

Now that you are familiar with the structure of prokaryotic cells, we can discuss the activities that allow these microbes to thrive. The life support activity of even the most structurally simple organism involves a large number of complex biochemical reactions. Most, although not all, …

To synthesis ecstatically acid by stratification. Introduction: A pleasant, often fruity, odor is characteristic of some of the simpler esters. Ethyl butyrate smells similar to pineapples, the odor of n-propel acetate is reminiscent of pears and isopleths acetate has a strong banana fragrance. Esters are …

First of all, as the name suggests, acid rain is rain that is too acidic; with a pH of 5 or below. PH is based on the concentration of hydrogen ions. Acid Rain is caused by emissions of sulphur dioxide and nitrogen oxides. These major …

Alcian Blue Rationale for Use Alcian blue is a water-soluble, amphoteric copper phthalocyanine, which is most often used as a basic dye. In general, alcian blue has an affinity for sulfated and carboxylated groups of acid mucopolysaccharides, but the specific group demonstrated is dependent on …

Key Terms and Concepts (1-24) 1. Denudation is the total effect of all actions (weathering, mass wasting, and erosion) that lower the surface of the continents. 2. Weathering- the physical and chemical disintegration of rock that is exposed to the atmosphere. Mass-wasting- the short-distance down …

Malnutrition has shown to be an important concern in women, children, and the elderly. Because of pregnancies and breastfeeding, women have additional nutrient requirements. Children can be at risk for malnutrition even before birth, as their nutrition levels are directly tied to the nutrition of …

Air pollution is a major problem facing our environment today. This dilemma is harmful to every single living creature on this planet. How can we limit the causes of air pollution? There are industrial as well as residential causes of air pollution. How can we …

Introduction: Boring fluid is the fluid used while boring oil and natural gas. Boring unstable design is a really of import portion of boring procedure. Boring fluid is the media between drill spot and the formation. The design of boring fluid is based on the …

1 Introduction 1.1 Investigation Purpose The times of low inflation have gone, especially in the resources centre and this is as a result of fossil fuels being capped with limit. Unfortunately, we can not reserve fossil fuels, such as coal and oil forever, though what …

Acid Mine Drainage (AMD) is presently the chief pollutant of surface H2O in the middle Atlantic part. AMD is caused when H2O flows over or through sulphur-bearing stuffs organizing solutions of net sourness. AMD comes chiefly from abandoned coal mines and presently active excavation. AMD …