Oxygen Essay Examples

The aim of this investigation

In order to ensure safety during the experiment, I, along with the rest of my group, shall be wearing safety goggles to protect my eyes from the reaction. I shall also wash my hands thoroughly if I happen to spill hydrogen peroxide on them and after each experiment in case I have spilt hydrogen peroxide… View Article

Formula of Magnesium Oxide

Chemistry Practical Assessment: Finding the formula of Magnesium Oxide (Skill 3) Results: Table showing measurements before experiment: Mass of crucible (g) Mass of lid (g) Mass of magnesium (g) Mass of crucible and magnesium (g) . Mass of products and reactants: ? mass of crucible: 14. 21g ? mass of crucible and magnesium before heating:… View Article

The factors affecting the deflection

The factors affecting the deflection of a cantilever when weights are added onto the end. What I think will happen: I think that as the weights are added to the cantilever, the deflection will increase. I think this will happen because: I think the deflection will increase because gravity will push down on the cantilever… View Article

Determination of Dissolved Oxygen in a Water Sample

To find out the oxygen content of a water sample by adding MnSO4 and alkaline KI into the solution. Mn2+ was oxidized into Mn3+. Then Mn3+ was reduced back into Mn2+ and I- was oxidized to I2. The solution was titrated against sodium thiosulphate solution and the oxygen content could be calculated. Result Trial 1… View Article

Mole ratios in a chemical reaction

Abstract The main objective of this lab experiment was to balance the given chemical equation and to find the correct mole-to-mole ratio of it. The theoretical balanced equation was Pb(NO3)2(aq) + K2Cr2O7(aq) –> PbCr2O7(s) + 2KNO3(aq). In addition, the ratio of moles was one to one. and the correct mole-to-mole ration was one to one…. View Article

Acid Rain investigation

o There are many different kinds of erosion but acid rain or else wind erosion are the two main types which could have eroded the marble statue which was positioned in the garden close to the industrial site. o Acid rain is made up from of a cocktail of different acids e. g. sulphuric acid,… View Article

Effect of Hydrogen Peroxide Concentration on Enzyme Catalase

Indroduction: Enzymes are proteins. They function as biological catalysts. They lower the energy barrier of a reaction so that the reaction can take place at body temperature. Also, they can speed up Metabolic reactions without being changed or used up. During a reaction, an enzyme molecule combines temporarily with the substrate. When the reaction is… View Article

Chapter 17: Alcohols and Phenols

17. 1: Nomenclature: 1. In general, alcohols are named in the same manner as alkanes; replace the -ane suffix for alkanes with an -ol for alcohols CH 3CH 2CH 2CH 3 CH 3CH 2CH 2CH 2OH OH butane 1-butanol 2-butanol 2. Number the carbon chain so that the hydroxyl group gets the lowest number 3…. View Article

Extracting Iron from Iron Ore in a Blast Furnace

The metal iron and its alloy steel is one of the most important substances used by man. Humans have been discovering the metal’s uses science 3500BC. Huge quantities are used in the construction industry to construct of all kinds of vehicles. The most common from of iron known is the oxide. The Iron is extracted… View Article

Review of Related Literature

Coal Ash Coal ash is a collective term for the residues left during the combustion of coal. Depending on the source and makeup of the coal being burned, the composition of the coal ash vary considerably, but all includes substantial amounts of both amorphous and crystalline Silicon dioxide (SiO2) and Calcium oxide (CaO), both being… View Article

Decomposition of Hydrogen Peroxide

Abstract: This lab was designed to observe the decomposition of hydrogen peroxide into it oxygen and water. The equation for this reaction is H202 H2O + +1/2O2 thus by measuring volume and pressure of O2 generated the amount of O2 generated can be calculated which in turn can be utilized to determine the concentration of… View Article

Kinetics of H2O2 Decomposition

Introduction When measuring the rate of a reaction one can measure the rate at which one of the product appears or the rate at which the reactants disappear. The actual rate of a chemical reaction however is dependent on two things; the temperature the actual experiment is performed at, and the concentration pertaining to the… View Article

Importance of Trees

Trees are the largest and longest living organisms on earth. To grow tall the tree has become a miracle of engineering and a complex chemical factory. It is able to take water and salts out of the earth and lift them up to the leaves, sometimes over 400 ft above. By means of photosynthesis the… View Article

Oxidation of Cyclohexanone to Adipic Acid

The cyclic ketone cyclohexanone was oxidized to adipic acid using the oxidizing agent nitric acid. The experiment yielded 0.2667 grams of adipic acid, giving a percent yield of 113.97%. Although the product was allowed to dry for one week, residual moisture was still present in the sample and a melting point could not be obtained…. View Article

Reflection, Activities of Daily Living

For the purpose of this essay the Kolb’s model of reflection (1984) has been chosen as a guide to reflect on administration of oxygen therapy. Administration of oxygen therapy is the aspect of nursing practice that I selected as a result of completing the case-based learning scenarios. I will explain how the administration of oxygen… View Article