Essays on Chemistry

Introduction: Many people have always wondered about the outcomes of chemical reactions. In the experiment, ‘The change of mass during chemical reactions,’ focuses on the change of mass during a chemical reaction. It is known that a chemical reaction is a process in which one or more substances, the reactants, are converted to one or...

1. Introduction The purpose of this investigation is to gain quantitative information of the reaction that occurs when Sodium iodide and Lead (II) nitrate are combined. Stoichiometry is the quantitative relation between the number of moles (and therefore mass) of various products and reactants in a chemical reaction (Washington University in St. Louis, 2005.). Chemists...

Chromatography research task: Many materials appear to have the same relation, relative position, or structure but actually they are just a combination of materials; a main example being black ink which is found in pens and it is a mixture of different coloured substances. On multiple occasions, these materials are allowed to separate by dissolving...

Introduction And Abstract (# Chroma = Colour, # Graphy = Grafein (in Greek) = To write). Chromatography is a method used to separate components of a mixture and they undergo two phases, the stationary and mobile phase. The stationary phase is responsible for solids and the mobile phase is responsible for liquids and gases as...

“PESTEL Analysis is a vital administration tool that ‘Hydrogen Fuel’ initiative can use to break down inside and outside factors that impact the circumstances in Fuel Cells. PESTEL represents – Political, Social, Economic, Technological, Environmental and Legal components that have impact on the large-scale condition of the undertaking that it works in. Hydrogen Fuel works...

Titration report Introduction Titration is using the concentration of a known solution to find the concentration of an unknown solution (Chemed.chem.purdue.edu, 2018). In our case we tried to find out the concentration of hydrochloric acid using sodium carbonate solution. To help complete this experiment we used a fair few new pieces of equipment, for example...

Ethanol, also known as ethyl alcohol, is a clear and colorless liquid that can serve as an alternative fuel to non-renewable energy sources. More than 97% of gasoline in the US contains ethanol, usually in three different mixtures called E10 (10% ethanol and 90% gasoline), E85 (15% gasoline and 85% ethanol), and E15 (15% ethanol...

Summary Pigeons have been a common nuisance in the many cultural sites of Kathmandu valley. Due to presence of easy food availability, building ledges and low level of predator the number of pigeons have raised and with it, the problems associated with it has also increased. Beside health, economic and beauty issue caused by the...

Introduction Determining a favorable pathway is one of the important steps in designing a catalyst for a fuel cell. Direct ethanol fuel cell is an attractive power source due to its high energy density for fuel cell systems. Each ethanol molecule can release 12 electrons via multiple oxidation and dehydrogenation step which involve cleavage of...

Abstract. Hydrogen is the most abundant element in the universe. When used as a fuel hydrogen produces clean energy and water (H2O). The Hydrogen economy is considered as a sunrise industry which would help to achieve as many goals. Such as reducing energy consumption and emissions, also stimulating economic growth. Hydrogen economy is also the...