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  • Amount Of Dissolved Oxygen In The Water
    3,902 words
    Faster Dissolved Oxygen Test Kit Purpose The purpose of my project is to determine if there is any significant difference in dissolved oxygen (DO) levels as measured by the traditional HACH (R) method or the newly developed CHEMets (R) test kit under typical field conditions. Hypothesis My hypothesis is that there is no significant difference in dissolved oxygen (DO) levels as measured by the traditional HACH (R) method or the newly developed CHEMets (R) test kit under typical field conditions. ...
  • Dead Plants And Animals In The Water
    399 words
    Lab #4 Oakland Ravine and Lake: Water Quality 1. The pH levels are fairly constant for inlet and outlet. The dissolved oxygen (dO), on the other hand, varies very much between the inlet and the outlet. The measurements of the pH and the dO of the water do not differ greatly. By comparing the two graphs given I can see that both the pH and the dissolved oxygen are lover in the winter. I think this is related to the amount of sunlight that the water receives and also the temperature of the water. ...
  • Form Sun Rays For Combustion And Oxygen
    1,233 words
    Oxygen Oxygen Atomic number 8 Atomic weight 15.9994 Melting point-218.4 oC (-361.1 oF) Boiling point-183.0 oC (-297.4 oF) Density (1 atom, 0 oC) 1.429 g / l Valence 2 electronic con fig. 2-6 or 1's 22's 22 p 4. Oxygen is one of the must important factors that made it possible for life to exist in this planet. Oxygen is also one of the elements must found in earth. Oxygen can be found in in metals, water, and even the one thin that protects us from the powerful sun rays. Oxygen is a very unstable...
  • Pollution Levels In Water
    913 words
    Water quality is a complex term to evaluate. The health of a water ecosystem depends on so many things. These parameters are each intertwined and connected. For simplicity there are several mainstream parameters that are used in conjunction with each other to determine the water's quality. These include: alkalinity, ammonia content, carbon dioxide, chlorine, nitrates, dissolved oxygen, phosphates, temperature, and turbidity. The most visible sign of poor water quality remains to be animal popula...
  • Algae And Plant Growth In Natural Waters
    872 words
    Phosphates are present in many natural waters, such as lakes and streams. Phosphates are essential to aquatic plant growth, but too much phosphate can lead to the growth of algae and results in an algae bloom. Too much algae can cause a decrease in the amount in dissolved oxygen in the water. Oxygen in water is affected in many different ways by phosphates Phosphorus is usually present in natural waters as phosphate (Mc welsh and Raintree, 1998). Phosphates are present in fertilizers and laundry...
  • Two Metallic Elements Plus Oxygen
    2,741 words
    Oxygen Oxygen and its compounds play a key role in many of the important processes of life and industry. Oxygen in the biosphere is essential in the processes of respiration and metabolism, the means by which animals derive the energy needed to sustain life. Furthermore, oxygen is the most abundant element at the surface of the Earth. In combined form it is found in ores, earths, rocks, and gemstones, as well as in all living organisms. Oxygen is a gaseous chemical element in Group VA of the per...
  • Slow Down The Consumption Of Oxygen
    509 words
    Cellular Respiration Lab Report Wednesday 8: 00 a.m. Lab March 2nd, 2005 I. Introduction In this lab we are measuring the amount of oxygen used in both germinating and non germinating peas. We are measuring the oxygen consumption by taking a reading of a re spirometer submerged in two water baths. The first bath will be cold water and the second warm to determine the effect of temperatures on oxygen consumption. Our negative control will be glass beads to measure to increase or decrease in atmos...
  • Oxygen Deficient Cooler Water
    664 words
    Research Dissolved oxygen infers to the volume of oxygen that is contained in water. Oxygen enters water through photosynthesis and across the water interface. The amount of oxygen that can be held by the water depends on the water pressure, salinity, and temperature. Gas solubility increases with decreasing temperature; thus colder water holds more oxygen. A reason why freshwater holds more oxygen than does saltwater is because gas solubility increases with decreasing salinity. When there is a ...
  • Ozone In Relation To Oxygen Therapies
    2,345 words
    Oxygen is one of the 92 known elements. An element is a substance that cannot be decomposed into a simpler substance by any simple means. Each of the 92 naturally occurring elements are therefore one of the fundamental materials from which everything in the Universe is made. The History of Oxygen On August 1, 1774, Joseph Priestley examined the effect of intense heat on mercuric oxide. He noted that an air or gas was readily expelled from the specimen. To his surprise a candle burned in this wit...
  • Average Height Of 10 Pneumetaphores
    900 words
    Introduction: Plants when grow in areas of bad conditions such as waterlogged soils must be able to deal with environmental extremes not experienced by other plants. Mangroves live in the swamp, bathed twice a day by the sea and having their roots in waterlogged soils which are devoid of oxygen, poorly drained, rich in organic matter and anoxic. Because of the lack of oxygen in the soils, mangroves rely on numerous erect aerial roots called pneumetaphores, the mangrove's breathing roots, to obta...

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