The pH Scale is a scale made to show how acidic or alkaline a substance is. The pH of something is measured with pH paper which can vary from wide range paper‚ which covers all ph’s‚ but is not as accurate at some others. There are pH papers that get very specific that can have a range such as 2 or 3 and get much more precise. The neutral on the scale is 7. Anything that is below 7 is considered acidic and anything above 7 is considered alkaline. Acidic substances contain more H+ than OH-. H+
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TITLE By: Brittany Bolling April‚ 28th 2011 Dr. Woolnough BIO 101 DO6A ABSTRACT: The objective of this study was to observe and understand what occurs in a sample of pond water over the course of six weeks. Over the six weeks there were qualitative and quantitative data found and recorded. The qualitative data recorded entailed: Water color and smell as well as suspended solids ranging from clear‚ opaque‚ and turbid. The quantitative data that was recorded regarded: Temperature‚ pH‚ Alkalinity
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Purification of solids Aim: To separate a mixture of carboxylic acid and a neutral substance by treatment with aqueous sodium hydroxide and purifying the carboxylic acid‚ measuring the melting points of the neutral and the acid components. METHOD: A mixture of( 5g) Carboxylic acid and neutral compound were separated by adding 2 mol dm-3 sodium hydroxide (25cm3) to the mixture‚ which separated the water soluble sodium from the water insoluble neutral component‚ by filtration. The solid at the
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Aim To find out the difference of reaction time it takes for the baking soda when it meets the vinegar under the condition that the volume of the vinegar changes. Background Information The two reactants‚ which are baking soda and vinegar‚ react with each other. Then it creates product‚ carbon dioxide‚ water and sodium acetate. The chemical name of vinegar is ethanoic acid and baking soda is sodium hydrogen carbonate. To illustrate this phenomenon as a chemical equation‚ it can be shown as C_2 H_4
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Investigating the solubility of Group II hydroxides Jiyeon Kim Aim: To investigate the solubility of Group II hydroxides (Mg(OH)2‚ Ca(OH)2‚ Sr(OH)2‚ Ba(OH)2) Research Question: What is the trend of solubility of Group II hydroxides going down the group as determined through measuring the volume of hydroxides needed to titrate with a known concentration of hydrochloric acid? Background Information: Solubility is when a solute forms a homogeneous solution by dissolving in solvent. The solubility
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SRI BHAVANI TEXTILE PROCESSING: The plant performs the following operations of wet processing 1. Singeing(Fabric) -Gas Singeing 2. Desizing 3. Mercerisation(Fabric) 4. Scouring and Bleaching 5. Dyeing -Kier boiler -Jigger -Jet dyeing -Beam dyeing 6. Dyeing(yarn) -Cheese dyeing 7. Finishing -Stenter -Zero-Zero -Calendering 8. Printing -Flat bed printing 9. Dot coating DESIZING: Mts=1095 Volume=650 Indent type=non organic Temp=80 Weight=378 Time:
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Do you know what Potassium cyanide is‚ what it does to your body‚ and what its use is? This paper will answer all those questions‚ and will specifically examine how potassium cyanide affects the body and how it is used. Potassium cyanide is a white crystalline salt solid that has a faint‚ bitter-almond like smell. It’s empirical formula is KCN. The taste of KCN is described as burning the tongue and tasting acrid. This compound deliquescent‚which means that it tends to dissolve. The appearance is
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Yesterday‚ the 8 orange team went to the Conodoguinet Creek for class. We went there to see the velocity of objects running down the stream. We got water samples to see what the alkalinity levels were in the creek. Finally‚ the last thing that we did was pick up rocks and brought them to shore to see if there were any macroinvertebrates that were attached to the rock. That is why our class went to the Conodoguinet creek yesterday. When my group went to the first station‚ we were testing the
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The question being looked into is “What is the water quality of the U-High creek‚ based on invertebrates found in the U-High Creek? “Dissolved oxygen is oxygen mixed with water. The range to measure how much dissolved oxygen is in a solution is 1-14 milligrams per liter. This is important because fish and other organisms in the ocean breathe off of dissolved oxygen. Phosphorus is used to measure the relative acidity of solutions such as water. The range for pH is measured in 0-14 scale. 0-6 is unhealthy
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2. Procedure 2.1: Experimental Prep and Optimum wavelength Selection An ionic Iron solution with a known concentration of 4.047x10-3 M was obtained. A 250-mL sample of a 10-fold dilution of this ionic iron solution and 5 drops of concentrated HNO3 was made. This solution served as the source of ionic Iron for the remainder of the lab and was labeled “stock ionic Iron solution.” Next‚ a 50-mL aqueous ionic Iron and FerroZine® complex solution was prepared by adding 5.00mL stock ionic Iron‚ 3-mL of
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