• Hardness Of Water Edta Ppm Tap
    2,333 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...
  • Internal Energy Lab Calorimeter Cup
    1,294 words
    Procedures: The purpose of this lab was to determine the specific heat of two different metals. In order to do this, specific directions were executed in order to discover the specific heat. First, we needed to obtain and record the weight of the Styrofoam calorimeter cup. Next, we filled the cup 2/3 full with cool tap water and recorded the temperature of the water. After this was done, we filled a glass beaker half full with water and placed it on a hot plate in order to have the water reach ...
  • The Quality Of Drinking Water
    3,218 words
    There are nearly 55, 000 community water systems in this country, supplying water to meet the drinking needs of more than 90 percent of the U. S. population. The Environmental Protection Agency (EPA) defines a community water source as one that consistently provides water to at least twenty-five percent for at least sixty days during the course of a year. Living in Washington, D. C. , this is a very personal issue at this point in time. Over the summer, we have dealt with serious testing on the...
  • How To Care For Hermit Crab
    455 words
    How to take care of Color. 1. Wash hands before handling A. You don't want her to get sick cause you are sick. 2. Always have salt water and fresh water available. A. Salt water is that little pouch that I gave you. Add all of that to 2 cups HOT water. Shake in a closed bottle until all salt crystals are gone. B. Use the tap water conditioner to remove chlorine... DO NOT FOR GET! Hermit crabs can not have tap water it will kill them! 3. Never pull her out of shell A. Duh! 4. Feed her in the ni...
  • Drinking Water Contamination Lead One Epa
    4,377 words
    Due to the Safe Drinking Water Act (SDWA), America's drinking water is safer than it has been in decades, and of better quality than that of many other countries. Accordingly, many Americans believe that while people elsewhere may have reason to be concerned about getting sick from contaminated tap water, we are safe. Yet, incidents in the United States such as the outbreak of the microorganism cryptosporidium in Milwaukee's water supply in 1993 that killed more than one hundred people and sicke...
  • Cabbage Juice Ibuprofen Water Brand
    2,153 words
    Introduction Ibuprofen, aspirin and acetaminophen are all members of the wonder drug family and are involved in many of our everyday activities. In this experiment, I used blue and red litmus paper, and pH paper to conclude the pH values and acidity / basicity of different drugs found in the wonder drug family. Another reason for this experiment is to test its solubility in water to discover which drug will enter your bloodstream faster. I then added red cabbage juice to the variety of drugs, wh...
  • Foul Water Report Activity
    547 words
    Purpose: The purpose of this lab is to purify as much foul water as possible by doing three procedures which are, oil water separation, sand filtration, and charcoal absorption / filtration . Procedure 1) Obtain approximately 100 mL (milliliters) of foul water from your teacher. Measure its volume precisely with a graduated cylinder; record the actual volume of the water sample (with units) in your data table. 2) Examine the properties of your sample: color, clarity, odor, and presence of oily o...
  • Municipal Water Fluoridation Fluoride Dental Health
    615 words
    When you push the button or turn the faucet, you expect clean, pure water to come out of the tap. That is something that will not be found since unpurified tap water contains more than 500 chemicals. One of the most controversial issues regarding our tap water is the fluoride that is added to it. Approximately two-thirds of the population of the United States are ingesting fluoride into their bodies every day, if they use tap water in any way. There are arguments that support pros and cons of wa...