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  • Edta Titration With Our Water Sample
    2,336 words
    Water is the most important molecule that exists on the Earth. Without water living beings would not be able to live. Water is used for an immeasurable number of things. There are many properties of water, which makes this molecule so unique. One which people overlook is hardness. Hardness is defined in the Chemistry: The Central Science by Prentice Hall's as being "water that contains a relatively high concentration of Ca 2+, Mg 2+, and other divalent cations". Water containing these ions is no...
  • Hard Water Soap Curd Problem
    2,413 words
    Water is a tasteless odorless vital element in which 90 percent of all organisms depend on to survive. It is one of the best-known ionizing agents and, is frequently called the universal solvent. Water combines with certain salts to form hydrates. It reacts with metal oxides to form acids and it also acts as a catalyst in many important chemical reactions. Not only is it essential to our health, but it is also crucial in the household and the industrial world. Every day we use water for cooking,...
  • Water And Mountain
    712 words
    The five colors can blind, the five tones can deafen, the five tastes cloy. The race, the hunt, can drive men mad. And their booty leave them no peace. Therefore a sensible man prefers the inner to the outer eye". (Ch. 12) This passage obviously refers to the temptations of our senses. When he refers to sight, the pleasing aesthetics of an object can lure people into traps. Everything around us is an enticement. From, the minor things, like what we want to eat for lunch, to the larger more expen...
  • Help Control Water Hardness
    778 words
    Solutions & Solubility Pure water, which is an odour less, colorless, and tasteless substance is often called the universal solvent. As water moves through soil, it dissolves very small amounts of minerals such as calcium and magnesium. The greater the content of calcium and magnesium, the more hard the water is. Therefore, hard water is the result of an excess of two elements, C and Mg. The hardness of water is measured in grains per gallon (gig), milligrams per litre (mg / l ) or parts per mil...
  • Hard Water Residue
    1,359 words
    The purpose of this experiment is to explore the hardness of the water on campus. Hard water has been a problem for hundreds of years. One of the earliest references to the hardness or softness of water is in Hippocrates discourse on water quality in Fifth century B.C. Hard water causes many problems in both in the household and in the industrial world. One of the largest problems with hard water is that it tends to leave a residue when it evaporates. Aside from being aesthetically unpleasing to...
  • Gross Rosen
    582 words
    Life has never been this hard. Sitting in a cattle car, don't know where you " re going. You have ideas, you " ve heard stories, but you don't really know. No food, no water, shivering. Everyone is quiet, some are sleeping, some are crying. It's been a long ride, and I am weak, but I can feel the train slow down. Some men start waking others up, one is not waking. He was wounded earlier in the battle for our capital. Most of us knew this young boy would not survive, but we were hoping. We hear n...
  • Hardness Of Natural Waters
    659 words
    Properties Water (h 2 0) is a liquid at room temperature, is odorless, tasteless, has a blush tint which may be detected; however, only in layers of significant depth. The freezing point of water is 0 degrees Celsius (32 degrees Fahrenheit), and its boiling point is 100 degrees Celsius (212 degrees Fahrenheit). Water attains its maximum density at a temperature of 4 degrees Celsius (39 degrees Fahrenheit) and expands upon freezing. Water is one of the best known ionizing agents. Because most sub...
  • Investigating Hard And Soft Water
    740 words
    INTRODUCTION: Water that contains calcium and magnesium ions is called "hard water" because calcium and magnesium ions can combine with other ions and compounds to leave a hard scale on the surfaces they touch. Hard water may be a troublesome in household water supplies. Fortunately, there are simple solutions to hard water problems. Hard water can be softened by the removal of metallic ions responsible for the hardness. This is known as water softening. Softened water is desirable in the bathtu...

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