BUFFER SOLUTION (ACID) An acidic buffer solution is simply one which has a pH less than 7. Acidic buffer solutions are commonly made from a weak acid and one of its salts - often a sodium salt. Objectives: 1. Measure the pH of the unknown solution first with indicators and then with pH paper. 2. compare the buffer solution with both a strong acid and a weak acid materials: 2 30 mL beakers 2 100mL volumetric flask 1 10mL pipet 2 aspirator 1 50mL graduated cylinder 1 10mL graduated
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constituents as cations and non-metallic constituents as anions. In this experiment‚ you will analyze a known solution that contains the entire Group I cations—silver‚ lead‚ and mercury (I)—and an unknown solution to determine which ions are present and which are absent. II. DISCUSSION: The chlorides of Pb2+‚ Hg22+ and Ag+ are all insoluble in cold water. They can be removed as a group from solution by the addition of HCl. The reactions that occur are simple precipitations and can be represented by
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Does the acidity-basicity of the dye solution affect the quality of the dyed product? What you need Dye materials: plant parts such as peelings of mangosteen fruit‚ purple camote‚ and eggplant or red mayana and pandan leaves Fabrics: cotton‚ rayon‚ or any synthetic fiber Mordants: alum‚ copper sulfate‚ iron (II) sulfate‚ sodium sulfate 500-mL beaker stirring rods tray Masking tape mortar and pestle scissors Hand gloves tweezers paper towel Hot plate/alcohol lamp What
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SWOT and Strategy Evaluation Gambling On Gambling and Casinos Benjamin Bragd PHL/320(BSGE1HBQR7) July 6‚ 2015 John Pries SWOT and Strategy Evaluation Gambling Introduction Some people dream of monster trucks‚ yachts‚ and extravagant homes with horses running at large. I often dream of having these things and have confidence that others dream of these things too. Have you heard one of the following sayings‚ “The grass is always greener on the other side of the fence” or “Trying to keep
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Workshop Five-Ethical Solutions Paper Jackie Marshall June 19‚ 2013 Workshop Five-Ethical Solutions Paper The owner of a company reduced wages by 5% for all employees in 2010 due to the aftereffects of 9/11: an action that was necessary in order to save the company from financial ruin during a very turbulent economy. Since that time‚ no one within the organization has gotten a raise. However‚ the business has now stabilized‚ showing a net profit for the fourth quarter of 2011‚ all of
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Chemistry 112: Anion Analysis Page 7 ANION ANALYSIS M uch of the work you will be doing in the Chemistry 112 laboratory will be concerned with identifying positive and negative ions‚ that is‚ cations and anions‚ in solutions whose composition is unknown. This procedure is called QUALITATIVE ANALYSIS. The modern chemist frequently wishes to identify the constituents in a very small amount of substance‚ and so he depends heavily on instrumental methods of analysis. While the procedures
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The human service profession involves various obstacles to overcome when working with a variety of clients. Obstacles are seen in all phases of human services in areas providing services‚ planning programs‚ and funding troubles. However‚ the elimination of some of these barriers can be done with the use of proper technology. Providing services to the aging population can be challenging‚ when providing services to this particular group because of the rising elderly population needing help and the
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Running head: SUSTAINABLE SOLUTIONS 1 Sustainable Solutions Paper Katherine Kem DBA Strategy Dr. Robert Hockin‚ Instructor February 21‚ 2010 Running head: SUSTAINABLE SOLUTIONS Sustainable Solutions Paper Walmart has some of the best supply chain methods in the market‚ and is working to become an industry leader in sustainability. Despite this‚ there is much criticism of this ‘giant’‚ and an in-depth look of their organization from a sustainable lens will review their successes‚ failures
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Drug Addiction During the month of May‚ a group of Neenah High School students competed in the Greenbay half marathon. This is a group of kids in the Runner’s High class at Neenah High School to help prevent use of drugs‚ and help kids fighting addiction. According to dictionary.com‚ addiction is the state of being enslaved to a habit or practice or to something that is psychologically or physically habit-forming‚ as narcotics‚ to such an extent that its cessation causes severe trauma. Addiction
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Around the world‚ forests are being logged for timber and paper pulp and cleared to grow mono-crops like palm oil and soy while they are deteriorating from the impacts of global warming. Deforestation is a major driver of global warming‚ responsible for up to 20 percent of global greenhouse gas emissions–more than all the cars‚ trucks‚ planes‚ boats and trains in the world combined. Deforestation doesn’t just threaten our climate‚ it threatens the livelihoods of 1.6 billion people that rely
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