was determined and the matching wavelength was recorded. The dye’s absorptivity at the maximum absorbance was determined in units of M-1cm-1 using Beer’s Law and standard data. The dye in the beverage Gatorade was then computed‚ accounting for any dilution factor used to determine its absorbance. The dyes for the red and blue dyes were then computed in purple Gatorade. The absorption of caffeine was evaluated in the second half of this experiment by diluting a 1mg/mL standard 10-fold with 70% IPA using
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Word count: ____ 2013 The effect different concentrations of sodium chloride has on red blood cells Georgia Edgar Teacher: Mrs McPherson John Paul College Word count: ____ 2013 The effect different concentrations of sodium chloride has on red blood cells Georgia Edgar Teacher: Mrs McPherson John Paul College Table of Contents Abstract 2 Introduction 3 Aim 3 Background 3 Hypothesis 4 Materials 5 Method 5 Results 6 Analysis of Results & Discussion 9 Conclusion
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Lab 7: The Kidney’s Role in Fluid Balance Introduction The renal system performs a vital role in homeostasis. The kidneys’ ability to retain valuable constituents and expel metabolic wastes from the body enables this system to regulate the volume‚ osmolarity‚ and pH of body’s internal fluid environment (Sherwood‚ 2007‚ p. 511). The functional unit of the kidney‚ referred to as the nephron‚ is composed of both tubular components—Bowman’s capsule proximal tubule‚ loop of Henle‚ the distal tubule
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Legal and Ethical Leadership in Management Porchia McCray Argosy University Online Introduction This paper will discuss a scenario involving two competing designer and manufacturing companies and their mutual retailer. The names of the two designer companies are Mathis Inc. and Countess Lori- Ann (CLA). The name of the retailor is Normandale’s. Normandale’s is having trouble profiting from the sales of the high priced clothing items made by Mathis Inc. Normandale’s made a request to CLA
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items using common laboratory measurement devices‚ to learn to combine units to determine density and concentration‚ and to use laboratory equipment to create serial dilutions and determine the density and concentration of each dilution. Procedure: Measure the volume‚ mass‚ length and temperature of a variety of items. Create dilution of sugar water. Data Tables and Observation: Fill out the data sheet (below) for the experiment and submit with this form. Recording data carefully and accurately
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adjusting to an appropriate dilution factor. 7. Withdraw a second sample and repeat count procedure to ensure accuracy. 8. CELL COUNTS _ Each square of the hemocytometer‚ with cover-slip in place‚ represents a total volume of 0.1 mm3 or 10-!4 cm3 . Since 1 cm3 is equivalent to approximately 1 ml‚ the subsequent cell concentration per ml (and the total number of cells) will be determined using the following calculations: Cell per ml = the average count per square X dilution factor X 104 (count 10
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EXPERIMENT : Iron in Breakfast Cereal by Atomic Absorption Spectroscopy OBJECTIVES : 1) To determine the actual iron content of different brands of cereals 2) To compare the experimental results with the values listed on the manufacturer’s labels. INTRODUCTION : Iron is one of the important minerals that is required for our bodies to function properly. Most of the iron in our body is found in the blood such as haemoglobin‚ approximately 60 -70% of the human body’s iron is found
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MATERIAL BALANCE GIVEN: TO DESIGN A 1000TPD CAPACITY H2SO4 ACID PLANT BASIS: 1 HOUR OF OPERATION. PURITY: PRODUCT WHICH IS TO BE MANUFACTURED IS ASSUMED TO HAVE STRENGTH OF 98% ACID. 1000TPD implies that we have Acid 1000 x 10 / 24 = 41666.67 Kg/Hr of 3 With 98% purity‚ the acid that is produced per hour = (98 x 41666.67) / 100 = 40833.34 Kg/Hr Kmoles of Sulfuric acid to be produced = 40833.34 / 98 = 416.667 Kmoles/Hr It’s assumed that overall absorption of the acid is 100 % = 416.667 / 1
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To study and understand the principle theory and formula of preparation of buffer and solution. 2. To learn the methods of buffer and solution preparation. 3. To focus on concentration units of molarity‚ percentage of concentration‚ and dilution of solution. Introduction : When a substance‚ called a solute‚ is dissolved in another substance‚ called the solvent‚ a solution is formed. A solution is known as a homogeneous mixture of two or more substances. For example‚ vinegar is a solution
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Title : Measuremnt of pH With Indicators Aim : 1.To investigate concentration of hydrogen ions in hydrochloric acic and colour changes of indicators 2.To determine standard solutions and the unknowns Variables Independent variable : Concentration of hydrogen ions in hydrochloric acid.The presence of hydrogen ions is varied by using 5 different concentration of hydrochloric acid of 0.1mol/L‚0.01mol/L‚0.001mol/L‚0.0001mol/L‚0.0000mol/L Dependent variable : Colour changes of indicators
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