Chemistry Essays

Chemistry essays are different from those who are more related to creative writing. They should be based on critical thinking, logic, and proper evaluation. Sometimes these essays are built on solving chemical equations and other problems. You need to have the solid theoretical background to prepare homework which deserves the highest grade. When students cannot cope with the tasks alone, they seek help at writing service. Our company is one of the best in this specialization. We do not only offer free samples on any topic but help with preparing the entire work within the quickest time.

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Introduction to Biochemistry

Mg2+ has 10 electrons. A magnesium atom has 12 electrons with 2 of the 12 being valence electrons. Therefore the atom will lose the valence electrons which are located on the outermost shell to stabilize itself (outermost shell) as atoms tend to do what it easiest. Since magnesium lost 2 …

SLIME

Abstract In this experiment we investigate the properties of SLIME. Substitution of polyvinyl alcohol instead of Guar gum makes this experiment quite accessible. The Slime is prepared by mixing a solution of (Na2B4O7*10H2O) sodium tetraborate decahydrate (Borax) and H2O with a solution of polyvinyl alcohol (pva) and H2O. Then stirring …

Biology lab report of osmosis

CONCLUSION: In this experiment the length of the potato cylinders is affected by osmosis. As the water moves in or out of the potatoes, the potatoes swell or shrink, thereby reducing or increasing in size or length. From the graph it can be inferred that the there is a negatively …

Emission Spectra & Flame Tests

Intro The emission spectrum is used in modern chemistry to help further studies of wavelengths and the spectrum. When a metal in a compound reacts in a flame and produces a color, it helps to show the strongest color in the emission spectrum. The purpose of performing these operations on …

Using Gravitational Force as a Measurement Tool

Answer the following questions about the results of this activity. Record your answers in the boxes. Send your completed lab report to your instructor. Dont forget to save your lab report to your computer Activity 1 Record your data from Activity 1 in the boxes below. Enter the data for …

Chemistry Project

INTRODUCTION Fermentation is a slow decomposition of complex organic compound into simpler compounds by the action of enzymes. Enzymes are complex organic compounds, generally proteins. Examples of fermentation are souring of milk curd, bread making wine making, brewing. The word ‘Fermentation’ had been derived from Latin (‘Ferver’ means to ‘boil’). …

Rate of Reaction of Potassium Permanganate and Oxalic Acid

The purpose of this experiment was to determine the reaction order and write a rate equation with respect to changes in permanganate ion and oxalic acid concentrations and to examine the effect temperature has on the rate of the reaction 1. In part one, the reactants potassium permanganate (KMnO4) and …

Knowing Your Audience Paper and Communication Release

Tragedy can happen anywhere, any time, and almost always unexpectedly. On one fateful day, tragedy struck a small copper mine located in San Jose, Chile. On August 5, 2010, there were 33 workers trapped 300 meters underground, for two months. After relentless search and rescue efforts, on October 13, 2010 …

Analysis of Food Dyes in Beverages

Different amounts of FD&C Blue I were diluted with water to make eight differently concentrated 10 mL solutions. Samples were placed in the spectrophotometer to determine the percent transmittance of FD&C Blue 1. All of the data was summarized in graphs to predict the concentration of FD&C Blue I in …

Complexometric Determination of Water

Abstract Determining the water hardness of unknown sample #55 was determined by complexometric titration. With the use of disodium salt EDTA as the solution to chelate the metal impurities and the Eriochrome Black T indicator as the solution used to help visualize when the impurities were completely chelated, along with …