The Effect of pH on the Rate of Osmosis Using a Glucose Solution Melissa Werderitch Biology 157 11/6/06 Introduction In a journal article written by Florian Lang‚ osmosis is essentially explained as the flow of water from one area to another that are separated by a selectively permeable membrane to equalize concentrations of particles in the two locations (Lang‚ 1997). Osmosis is able to maintain osmotic pressure and regulate a cell’s volume. In a hypotonic () or hypertonic () environment
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Experiment 20: pH Titration: Phosphoric Acid in Cola Drinks Post-lab Assignment or Report The post-lab report for this experiment is due at the beginning of the following lab period. Student notes for the lab will be available on the lab T-Square site. Learning Objectives Students will be able to... • Use a known mass of solid acid to determine an unknown concentration of a basic solution (this process is called “standardization”). • Execute a titration using good‚ reliable technique.
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The movie “42” entails the story of Jackie Robinson‚ the first African American baseball player in the Major Leagues‚ inside of the “all white league”‚ breaking down the color barrier for other minorities to join. The story begins with the domination of Jackie in the colored league‚ and the Dodgers owner‚ Mr. Branch Rickey‚ taking notice. Mr. Rickey‚ saw money to be made‚ but needed a face for his idea. Cue Jackie Robinson. To begin‚ a scout sees Robinson standing up for his Baseball team‚ the Kansas
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Process 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 Develop Project Charter Develop Project Management Plan Direct and Manage Project Execution Monitor and Control Project Work Perform Integrated Change Control Close Project or Phase Collect Requirements Define Scope Create WBS Verify Scope Control Scope Define Activities Sequence Activities Estimate Activity Resources Estimate Activity Durations Develop Schedule Control Schedule
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Sport Movie Review 42‚ The True Story of an American Legend I recently saw the film‚ 42‚ and I found many connections with our Sociology of Sport class. First and foremost‚ the movie was about the baseball legend‚ Jackie Robinson. Jack broke the baseball color barrier and was the first African American player allowed in Major League Baseball. He played for the Brooklyn Dodgers beginning in 1947. Jack was a strong‚ talented player‚ but he also had a mind of his own. He played with an attitude
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‘42’ is a movie about a professional American Baseball player Jackie Robinson‚ how he dealt with racism and how he broke baseball’s colour line in the 1940s. As the movie progresses‚ it also shows how the media had shaped society’s perception of the integration of coloured baseball players in society and how it was a success. In this movie analysis‚ the three topic discussions are racism towards African Americans‚ Diffusion of Innovation and the role of opinion leaders through various media effects
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PH at the UN Alfredo Vidal Ceballos 7/10/2014 Group Support Part 1: Solution Group Name and M. cons. Chem formula Type Experimental pH 1 Deidre Acetic Acid 0.1M HC2H3O2 Weak Acid 3.03 3.03 2 Acetic Acid 1M HC2H3O2 Weak Acid 2.59 2.54 3 Hydrochloric Acid 0.5M HClStrong Base 0.85 0.90 4 Jonah Nitric Acid 0.1M HNO3 Strong Acid 2.14 2.14 5 Sodium Acetate 1M NaC2H3O2 Weak Base 9.42 9.42 6 Potassium Dihydrogen Phosphate 0.1M KH2PO4 Weak Acid 5.47 5.47 7 Andy Potassium Hydrogen Phosphate 0
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Lab Report: Purpose: The Objective of this lab was to learn how to measure the pH (or acidity) of commonly known fluids‚ using the correct tools and procedures. To then use that data to document the changes noticed when mixing those same fluids and changing their respective pH levels. Materials: In order to conduct this experiment several pieces of equipment and other materials were needed. The first item was a graduated cylinder‚ which was used in order to measure out the precise
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Question 1 Critique Dr. Honeydew’s report. Specifically‚ discuss what is missing and how the missing information should have been presented. First the PH measurements‚ Dr. honey dew does not explain how the PH device was calibrated or if the blood sample was added or mixed with anything prior to the measuring of the pH (like water‚ etc.). In regards to the absorption spectroscopy‚ the method by which the concentration was obtained is questionable. Was the concentration known before the experiment
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of solutions and test their pH. Due to materials available pH strips were the only testing tools available. A table is setup to compare the strip color to its pH level. Four known solutions including bleach‚ lemon juice‚ soda‚ and baking soda were used. There was also an unknown solution in which the pH level was used to determine which solution it was. The pH scale is 1-14‚ a pH of 7 is neutral‚ less than 7 is acidic‚ and greater than 7 is acidic. Materials: * pH strips * 20 test tubes
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