Chemistry Essays

Introduction In this week’s lab experiment, the rate of decomposition of hydrogen peroxide forming oxygen gas will be observed and studied. Since the rate of a chemical reaction is dependent on two things; the concentrations of the reactants and the temperature at which the process is performed, the rate can be measured at which a […]

An investigation to compare the reaction rates between potato and hydrogen peroxide against liver and hydrogen peroxide through loss in mass. Background information: Catalase is an enzyme that is found in all cells. This means that it is an intracellular enzyme. And enzyme is a biological catalyst. A catalyst is some thing that speeds up […]

The high Hydrogen-Carbon ratio of Methanol makes it a popular choice for heterogenous contact action in the production of H. The use of micro-reactors in methyl alcohol steam reforming has yielded positive outcomes and has led to further research over the past two decades. In this study, the discussion revolves around three new ideas for […]

The s-block elements of the Periodic Table are those in which the last electron enters the outermost s-orbital. As the s-orbital can accommodate only two electrons, two groups (1 & 2) belong to the s-block of the Periodic Table. Group 1 of the Periodic Table consists of the elements: lithium, sodium, potassium, rubidium, cesium and […]

This page explains what electronegative Is, and how and why it varies around the Periodic Table. It looks at the way that electronegative differences affect bond type and explains what is meant by polar bonds and polar molecules. If you are interested in electronegative in an organic chemistry context, you will find a link at […]

The Periodic Table of Elements is used as a way of displaying all the known chemical elements; it is accepted and used all over the world. The periodic table’s layout is very well structured; it consists of vertical rows called groups and horizontal rows called periods. It is one of the most important resources in […]

History of the Periodic Table The periodic table was founded during the 1800’s due to the contributions of three main scientists; John Newlands, Dmitri Mendeleev, and Henry Moseley. – In 1865, John Newlands proposed the ‘Law of Octaves’, which stated that every eighth element shared similar properties (eg. Lithium, Sodium, and Potassium). This allowed him […]

Timekeeping is made possible due to the fact that the counting interval can be done repeatedly without high variation. Although mechanical means for example use of amechanical pendulum can be used in timekeeping, such methods are not as effective as theuse of atomic clock for time keeping. Although there are a number of elements that […]

The article, ‘Beyond Element 118 the other row of the periodic table’ was written by Katrina Krämer on 29 January 2016 in the Chemistry World journal. The article describes the latest and future discoveries of the periodic table elements. According to Katrina, four different elements have recently been added to the existing periodic table thereby […]

Poetry analysis encompasses investigating a poem’s form, content, structural semiotics and history in an informed way, with a sole goal of heightening one’s own and other’s understanding and appreciation of the work. To portray the complex relationship between the father and the son in the A story poem by Li-Young Lee, its first important to […]

BoJack and Todd are watching a special Christmas episode of Horsin’ Around that has the title “Sabrina’s Christmas Wish” where the youngest adopted daughter called Sabrina after discovering the existence of Santa decides to have a wish of her parents being alive again. In the first few episodes of the series, it is presented as […]

Despite notable advancements in Texas, there remains a significant gap to improve its criminal justice system. Efforts have been made to achieve a system that is responsible, efficient, compassionate, and economical. Statistics demonstrate the extensive representation of the criminal justice system in Texas, as about 1 in every 22 Texans are presently under supervision. Despite […]

In healthcare service delivery, the confusion of equating status with authority can be resolved. Patients often feel more at ease and less intimidated when communicating with nurses rather than doctors. This comfort allows for easier disclosure of health needs and concerns. Research indicates that nurses are highly skilled in patient-centered activities, particularly in adhering to […]

When experiencing eye problems such as astigmatism, an individual will have a distorted vision which requires aids such as glasses or contact lenses. Both eyeglasses and Contact lens have advantages and disadvantages, however, choosing between the eyeglasses and contact lenses mostly depends on an individual’s preferences. Some of the factors that an individual ought to […]

Disparities in health as well as health care have been in existence for over two centuries. Studies reveal that health disparities continue to remain problematic in ethnic together with racial minorities with little improvements or none despite recognition of the existence of the problem (Philips and Malone, 2014). Other health disparities equally emanate from issues […]

The quality of water depends on several factors including oxygen-demanding wastes, disease-causing pathogens, microorganisms affecting health, plant nutrients, suspended solids and dissolved minerals. Other pollutants may be excess acidity due to acid rain, thermal pollution and substances such as benzene, chromium and mercury that are all toxic to aquatic life. As humans and land animals […]

Aim The purpose of this experiment is to determine the percentage by mass of calcium carbonate in eggshells. Introduction To avoid the breakage of eggs before reaching market, the eggshells needs to be as strong as possible. The strength of eggshells is mainly determined by the percentage of calcium carbonate in it. In order to […]

Method 1 Titration For the titration, it is necessary to dilute the Sodium Hydroxide so that it is an easier concentration to titrate. Using a 25cm3 pipette, washed out with some of the NaOH solution, transfer 25cm3 of the solution to a 250 cm3 volumetric flask, and fill to the line with distilled water. The […]

Iron is a transition element, and all transition elements may be found in a variety of oxidation states, for example, iron exists as both, Iron(II) and Iron(III). These kinds of elements can react with both oxidizing and reducing agents due to the fact that they can be converted from one oxidation state to another. Working […]

The volume of iodine solution needed to neutralize the sodium thiosulphate. You simply titrate the sodium thiosulphate against the solution of iodine using starch solution as an indicator. Then when you have calculated the concentration of the sodium thiosulphate can use it in turn as a standard solution, to find the concentration of the other […]

Hydrated FeSO4 can come in many hydrated forms. Using two methods for better accuracy and to make a comparison, I will deduce the number of water molecules per mole of a hydrated iron sulphate sample. Method 1: FeSO4. nH2O(s) ½ FeSO4(s) + nH2O(l) =dehydrating the FeSO4 by evaporating the water and calculating the mass lost. […]

I was provided with a solution of a monobasic (monoprotic) acid. Monoprotic acid is an acid that contains only one hydrogen atom. I was to determine the molarity of the acid by titration with a sodium hydroxide solution, and then use this molarity to calculate the relative formula mass of the acid. An acid is […]