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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pH and Chromatography Lab Report Kevin Rivera Biology Mr. Langley 2C 10/7/13 Introduction In this lab‚ of pH and Chromatography‚ in the pH aspect of the lab we are trying to figure out the pH level of certain chemicals by writing down of known solutions to find the type of unkown solution using pH standards. In the Chromatography‚ we are trying to separate the chemicals using water and a piece of paper. Methodology Materials: Safety Goggles pH indicator & pH indicator key
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Reaction Time: Does it Decrease with Higher Levels of Athleticism? Abstract Reaction times have been shown to vary based on a variety of variables. Existing research revealed positive overall benefits and inverse relationships between reaction times and athleticism; however‚ limitations exist regarding the volume of research concerning reaction times and athleticism‚ homogeneous and small sample sizes‚ and a restricted range of sports examined. The current study sought
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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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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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MEASURING pH Date of Lab: 02/09/13 Date Report submitted: 02/26/13 Purpose of the experiment By doing this experiment‚ we were trying to learn how to measure a pH with a pH meter to determine whether a solution is weakly‚ moderately or strongly acidic or basic; but also to compare the different data founded to see how the addition of certain liquid to a solution may affect the pH of the initial solution. Materials We used: * Tap water‚ distilled water‚ Soda and milk as the main
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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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16.7 Depth Scales * Explain what is meant by a “hypnotic depth scale.” * Give examples and explain the issues relating to the use of depth scales When discussing the topic of hypnotic depth they are referring to how ‘deep’ the subject is/can go into hypnosis and what is possible at that perceived level of depth. If you do the research you will find lots of different scales of depth‚ here I have taken the scale from the coursework provided by Adam Eason School of Therapeutic Hypnosis which
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concept and meaning of pH 2. Provide the student experience in measuring pH a. pH testing paper 3. Test the student’s hypothesis as it related to the pH of common solutions Hypothesis The pH of the tested solutions will be in the order of the following according to a pH scale: 1. Lime juice 2. Orange juice 3. Soda 4. Iced Tea 5. Milk 6. Water 7. Soapy water Material Required To facilitate this laboratory exercise‚ the experimenter needs the following: pH strips Sample reservoirs
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eight types of chemical reactions. These eight reactions are Decomposition‚ Composition‚ Acid/Base‚ Synthesis‚ Single-Replacement‚ Double-Replacement‚ Precipitation‚ and Redox. Though these eight could be referred to as the same due to them being chemical reactions. They are actually very different. An example of this difference is Decomposition and Synthesis. Decomposition is when a compound is broken into smaller chemical species while a Synthesis reaction is two or more chemical species combining
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