Oxygen Essays

  • Oxygen Advantages And Disadvantages

    954 Words  | 4 Pages

    Diatomic oxygen (O2), which is also known as Oxygen. Certainly, oxygen has its good points. Besides being necessary for respiration and the reliable combustion engine, it can also be used as in liquefied form as rocket fuel! It is also widely used as a medicine as a means to imbue the body with a greater amount of the needed gas. However, recent studies indicate that handling oxygen might be doing less good than hoped-and in fact be causing harm. No one is protected to be the dangers of oxygen, but the

  • Essay On Dissolved Oxygen

    1745 Words  | 7 Pages

    dissolved oxygen? Dissolved oxygen alludes to the level of free oxygen not bonded to any existing molecule in the water or other liquid substances. It is an important parameter in assessing water quality because of its influence on the organisms living within a body of water. In limnology (lakes studies), dissolved oxygen is a crucial factor second only to water itself. A dissolved oxygen level that is too high or too low can harm aquatic life and affect water quality. Non-compound oxygen, or free

  • Dissolved Oxygen In Water

    1979 Words  | 8 Pages

    Determination of Dissolved Oxygen (DO) in Water King Ma United International College Abstract The oxygen in the water play an important role in the biological aspect, and scientist named it dissolved oxygen (DO). The level of dissolved oxygen in water will affect the living organisms, other material reaction in the water and the environment as will. Dissolved oxygen also as an important measurement of the water quality, is related to many other factors, which make the sampling is a serious

  • Dissolve Oxygen Titration

    902 Words  | 4 Pages

    Winkler Method for Dissolve Oxygen I. INTRODUCTION They are two ways of determining dissolve oxygen in water the titrimetric by Winkler and electrometric. Winkler method is a technique used to measure dissolved oxygen in freshwater systems. Dissolved oxygen is used as an indicator of the health of a water body, where higher dissolved oxygen concentrations are correlated with high productivity and little pollution. This test is performed on-site, as delays between sample collection and testing may

  • Disadvantages Of Dissolved Oxygen

    980 Words  | 4 Pages

    3.2.6. Dissolved oxygen The word dissolved oxygen is used to explain the amount of oxygen dissolved in a unit volume of water. All living organisms are dependent upon oxygen in one form or another to maintain the metabolic processes that produce energy for growth and reproductions. DO is very important parameter for maintain the health of the river, lakes, ponds. Level of the dissolved oxygen is depends on physical, chemical, and biological activity in water body. The minimum DO level is 4 mg/l

  • Chemical Oxygen Demand In Water

    977 Words  | 4 Pages

    Chemical oxygen demand (COD) This is a measurement of the oxygen needed to oxidize soluble and particulate organic matter in water. It similar to BOD, it supplies an index to evaluate the effect discharged wastewater will have on the receiving environment. It is usually expressed in mass of oxygen consumed over volume of solution which in SI units is milligrams per litre (mg/L) and accepted standard measurement by the International Organization for Standardization is ISO 6060. Also this test can

  • Oxygen Plasma-Hydrophilicity Analysis

    755 Words  | 4 Pages

    of Oxygen plasma-hydrophilicity Analysis The hydrophilic nature of the Oxygen plasma treated cotton fabrics was investigated by measurements of contact angle and optical microscope image. Fig. 2(a) shows the variation of the contact angle for the untreated and Oxygen plasma treated cotton fabric at different treatment times. The contact angle of untreated fabric found 1490 (fig.2 (b)) it is noted that the hydrophobic nature due to lack of polar groups on the substrate. After the 2mins Oxygen plasma

  • Dissolved Oxygen In Drinking Water

    840 Words  | 4 Pages

    Dissolved oxygen Dissolved oxygen is oxygen gas molecules (O2) present in the water. Plants and animals cannot directly use the oxygen that is part of the water molecule (H2O) Oxygen enters streams from the surrounding air and as a product of photosynthesis from aquatic plants. Consistently high levels of dissolved oxygen are best for a healthy ecosystem. The Oxygen Level Vary Depending upon on factors including water temperature, time of day, season, depth, altitude, and rate of flow. Water at higher

  • Dissolved Oxygen Formula Lab Report

    826 Words  | 4 Pages

    CONDUCTIVITY 2. DISSOLVED OXYGEN TEST 3. BIOLOGICAL OXYGEN DEMAND TEST 4. CHEMICAL OXYGEN DEMAND TEST 5. PH 6. TOTAL DISSOLVED SOLIDS BOD TEST 5ml of waste water sample was introduced into the 300 ml of BOD bottle. The lid of bottle was tightened so that no air bubble could reside in it. It was then sealed and after that addition of deionized water was carried out in the bottle. At the beginning stage of calculating BOD by using dissolved oxygen meter, value of the dissolved oxygen was found to be 8mg/L

  • Chemical Oxygen Demand Lab Report

    783 Words  | 4 Pages

    Chemical Oxygen Demand (COD) is a measure of the capacity of water to consume oxygen during the chemical decomposition of the organic matter and oxidation of inorganic chemicals such as ammonia and nitrite. Test Procedure The COD was determined by the dichromate reflux method. The appropriate amount of sample was introduced into commercially available digestion solution containing potassium dichromate, sulphuric acid and mercuric sulphate and the mixture was then incubated for 120 min at 150º

  • Biochemical Oxygen Demand Lab Report

    1832 Words  | 8 Pages

    Laboratory Testing Biochemical oxygen demand (BOD5). A measure of organic materials concentration in the wastewater that can be oxidized by the bacteria and normally determined on the 5th day at 20˚C through the amount of oxygen consumed. In this study, the procedure referred is APHA-5210 B. Chemical oxygen demand (COD). This test is used to quantify the amount of oxidizable pollutants found in water, technically a measure of the water sample going through oxidation and reduction reaction. The

  • Oxygen Bearing Organic Compounds Lab Report

    1085 Words  | 5 Pages

    Study of Organic Compounds that Contain Oxygen Gutierrez⁺, Gomez, Granda, & Hernadez Department of Biology, College of Science University of Sto. Tomas, España Blvd., Manila Date Submitted: October 22, 2014 ABSTRACT: Administering Dichomate Test, Tollen’s Test, Lucas Test, DNPH Test, Hydroxamic Acid Test and Iodoform Test, the common oxygen bearing organic compounds and functional groups will be distinguished through this methodical experimentation. Utilizing the different reagents and techniques

  • Dissolving Oxygen Experiment

    743 Words  | 3 Pages

    biological parameter of given water sample are explained as below: 1. Temperature : Temperature is checked by the thermometer. 2. pH : We can check pH of given water sample through pH testing machine. 3. Dissolved oxygen : The term Dissolved oxygen is used to describe the amount of oxygen dissolved in a unit volume of water. It measures the ability of water to support the aquatic organisms. Its procedure has following steps : I. Take a water sample about 300ml in a conical flask. II. Add 2ml magnous

  • Google's Oxygen Case Study

    1517 Words  | 7 Pages

    responses to the questions regarding the case of Google’s Project Oxygen (Garvin, Wagonfeld, & Kind, 2013). Firstly, a brief introduction of Google’s culture, the people that work for Google, and their perception of their managers is stated. Secondly, a few proposals for the role of human resources and managers is recommended. Thirdly, three different aspects of the steps taken by PiLab are evaluated. The assessments of the Oxygen 8 attributes along with its value are enumerated. Additionally

  • Hyperventilation Lab Report

    2382 Words  | 10 Pages

    fraction of oxygen, 21%, and other gases in the atmosphere remain constant on increasing altitude the barometric pressure decreases exponentially as we ascend above sea level. At sea level the atmospheric pressure is 760mmHg resulting in an oxygen partial pressure(pO2) of 150mmHg (taking water vapour into consideration.) On ascent to an altitude of 4000m the atmospheric pressure is reduced to 475mmHg resulting in a pO2 of 103mmHg. Because of the fall in pO2 the driving of force of oxygen into the blood

  • Photoluminescence Reflection

    822 Words  | 4 Pages

    primarily employed to investigate the optical properties, oxygen vacancy, migration and capture of photo-induced carriers in the semiconducting Ni/Ti LDH (Fig. 6). It is known that PL emissions of semiconductors are broadly divided into two categories: the band–band PL emission belonging to the electronic transitions from the conduction band (CB) bottom to the valence band (VB) top, and the excitonic PL emissions resulting from the surface oxygen vacancies and defects of semiconductors. For band–band

  • Ethyne Gas Lab Report

    1390 Words  | 6 Pages

    the result of lighting the gases was a mixture of incomplete and complete combustion for all four tests. Due to the fact that the ethyne gas was placed in an enclosed space, which is the test tube, it does not have as readily of an access to the oxygen present in the room than an open flame. The result was incomplete

  • Fuel Cell Advantages And Disadvantages

    794 Words  | 4 Pages

    with the oxygen and other oxidizing agents. Basically fuel cells are the cells which converts the chemically energy into electricity but it is very different from the batteries. Fuel cell requires a continuous supply of oxygen and the fuels whereas the batteries run over the chemically present or stored in the battery itself and generates an electromotive source. The first fuel cell was invented in the early 17th century and the first fuel cell came

  • The Importance Of Gas Exchange In Animals

    2211 Words  | 9 Pages

    Gas exchange is the exchange of oxygen and carbon dioxide across a membranous surface through diffusion, allowing oxygen to be extracted from the environment and transferred into the organism’s cells while carbon dioxide is simultaneously released from the cells. Efficient gas exchange is essential for the survival of animals (fish, insects, mammals) because it provides oxygen (required for cellular respiration) to the cells of the animal which is essential as respiration provides energy for the

  • Ozone Layer Research Paper

    1240 Words  | 5 Pages

    The atmosphere of our earth surrounds it and protects it by blocking the dangerous light rays from the sun and acting as a shield. The atmosphere contains 78% Nitrogen, 21% Oxygen and 1% of other gases. Some of the oxygen turns in to ozone (O3), which creates the ozone layer in the stratosphere. Ozone is concentrated around an altitude of 25km. Ozone molecules absorb the dangerous light rays from the sun, so the ray breaks apart and only heats the surrounding by not damaging something. Ozone layer