and Observations: Present all relevant data in a data table below. Include an observations section for any observations that you made during the lab. (5 points) |Data Table | |Mass of magnesium strip (grams) | | |Volume of gas collected (mL) | | |Barometric pressure (atm) | | |Room Temperature (°C) |
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Journal of Natural Sciences Research ISSN 2224-3186 (Paper) ISSN 2225-0921 (Online) Vol.2‚ No.4‚ 2012 www.iiste.org Study on the contents of bottled mineral water of various brands in Malaysia K.Kabilan1‚ K.Mughilan2‚ R.Sivaneswari3 Tunku Azizah National Primary School1‚2 Bandar Indera Mahkota‚ Kuantan‚ Pahang & No.15‚ Lorong IM 8/34‚ Taman Mahkota Putra3 Kuantan‚ Pahang‚ Malaysia *Email: kabilan2000@hotmail.com Abstract Mineral water has becomes very popular and is a necessity in the present
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Rachel Bohnenberger Professor Van Doorn ENVS 150-002 2 March 2015 Water Quality Lab Report Introduction: When people are asked about how water is characterized‚ they usually will think of saltwater‚ freshwater‚ safe-to-drink freshwater‚ and tap water. Only a few people understand that water and its quality are characterized in several other ways beyond salt‚ fresh‚ and tap water. In 1967‚ the Water Quality Act‚ which was an amendment of the Federal Water Pollution Control Act‚ was passed. The
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that if your drinking water look‚ smells and taste clean‚ that does not mean that there is nothing else it. Water also contains dissolved solids: •Sulfur •Calcium •Magnesium If water contains a lot of dissolved calcium and magnesium it is called hard water. But soft water contains less calcium and magnesium. Dissolved solids are just one factor that can affect water quality. Different ways how humans activities can affect water quality: People are part of the water cycle
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95% ethanol X 0.1M cobalt (II) chloride hexahydrate dissolved in 95% ethanol X zinc X 1M hydrochloric acid solution X 0.1M copper (II) sulfate solution X 0.5M sodium hydrogen carbonate solution X 1M ammonia solution X magnesium X 1M sodium hydroxide solution X ammonium chloride Procedure: A. Be sure to always start with clean‚ dry test tubes‚ equipment‚ and tools. B. Put a label on each test tube. With a pencil‚ number each test tube from one to twelve
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dioxide and the calcium carbonate - Soap and detergents o Used as a base in soap and detergents. It is also used to make sodium phosphate and sodium silicate that act as builders - Softening hard water o The carbonate ions precipitate calcium and magnesium ions‚ this is why it is used in some soaps and detergents - Baking soda production o Sodium hydrogen carbonate or bicarbonate of soda is produced as a part of the process. o The sodium carbonate is dissolved to make a concentrated solution and
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Chemistry of Natural Waters Lab Report Lauren Braas Thursday November 12‚ 2009 Chemistry 111 Group members: Sheila Azutillo Markeisha Brown TA: Darlene Biziak Introduction Water is such an important substance needed by all living species for survival. Freshwater is needed for agriculture‚ hydroelectric power‚ and drinking water. The United States uses 9 X 1011 liters of freshwater everyday.1 Freshwater is not completely pure. Its composition is based on dissolved solutes ranging
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National Children`s Book Reading Day 2013 In accordance to the DepEd Memorandum a “National Children`s Book Day celebrated nationwide on July 16‚ 203. The celebration aims to develop and improve the capabilities‚ proficiency and competence of teachers‚librarians and students in storytelling and other reading-related activities. It undertakes various initiatives to promote children`s literature and reading. SBES celebrated National Children`s Book Reading Day with our Vice- Mayor
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Reactants potassium ferricyanide | Olive Green | sodium phosphate | Colorless | sodium sulfate | Colorless | sodium hydroxide | Colorless | sodium chloride | Colorless | sodium carbonate | Colorless | potassium nitrate | Colorless | magnesium nitrate | Colorless | iron (III) nitrate | Yellowish Hue | zinc nitrate | Colorless | copper (II) nitrate | Bluish Hue | calcium nitrate | Colorless | Pre-Lab Questions: A double replacement reaction is a chemical reaction that usually
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TREATMENT OF CORROSION Regardless of the type of corrosion or the metal involved‚ corrosion treatment requires three basic steps: 1. Remove as much of the corrosion as possible. 2. Neutralize any residual material. 3. Restore the protective surface film. CORROSION REMOVAL As previously discussed‚ the first step in corrosion control must be cleaning the surface. After the surface is completely clean and it is determined that corrosion does exist‚ the damage must be carefully assessed
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