Title: ACID BASE TITRATION. Objectives: 1. To determine the concentration of acid using titration. 2. Skills of titration techniques. Apparatus: 1. 250 volumetric flask 2. 10mL measuring cylinder 3. 25mL pipette 4. 50mL burette 5. 250mL beaker 6. 150mL conical flask 7. Retord stand 8. White tile 9. Stopwatch 10. Pipette bulb Chemicals: 1. HCl solution 2. 0.1M NaOH solution 3. H2SO4 solution 4. Distilled water 5. phenolphthalein Introduction
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Anna Powell 2nd I.Title: Acid-Base Titrations AP Chemistry Laboratory #6 II.Purpose: The purpose of this experiment is to standardize a sodium hydroxide solution and use the standard solution to titrate an unknown solid acid. The equivalent mass of the solid acid will be determined from the volume of sodium hydroxide added at the equivalence point. The equilibrium constant‚ Ks‚ of the solid acid will be calculated from the titration curve obtained by plotting the pH of the solution versus
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TDA 2.8 Health & Safety 1.1 Describe how current health & Safety legislation‚ policies and procedures are implemented in the setting. Legislation Summary Affect within School COSHH Control of Substances Hazardous to Health Duties and standards on all aspects of control of substances hazardous to health including chemicals‚ dust‚ micro-organisms and dangerous pathogens. Cleaning products‚ chemicals‚ first aid supplies must be clearly and correctly labeled. Any substances that are deemed harmful
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Purpose: To find out if the Unknown substances are bases or acids. Materials: goggles aprons paper for data table graduated cylinder unknown I substance beakers/test tubes stirring rod litmus paper pH indicator paper pH color chart phenolphthalein scoopula eye-dropper digital pH meter magnesium ribbon calculator unknown II substance forceps sodium bicarbonate Procedures: Test the pH of the Unknown substances with litmus paper and pH indicator paper and match to color chart
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for many different purposes. Some uses for the inanimate objects include: supporting he head while sleeping‚ providing comfort while lounging‚ and decorating purposes. The limited knowledge on the subject is the significance of this analysis. The end result will not only be enhanced knowledge on the subject but a personal touch added to seats in a home. This process includes seven easy to follow steps. While there are several different purposes‚ very few people know how to make a pillow by hand.
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Five Bases of Power In 1960‚ social psychologists John French and Bertram Raven identified what has become known as the five bases of power. Coercive power carries with it a manifestation of fear based on the possible negative outcomes of this power and if the subject did not comply with the orders given. This formal base of power is effective in the short term only; and in contrast‚ more often leads to rebellion against authority rather than respect and compliance based on respect. This base of
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Acid and Base Titrations: Preparing Standardized Solutions Introduction: This experiment focuses on titrations of acids and bases. A titration depends on addition of a known volume of solution and is a type of volumetric analysis. Many titrations involve either acid-base reactions or oxidation-reduction reactions. In this experiment we do one of each. We monitor the pH of the reaction with the use of a color indicator. We also learn about the standardization of bases (NaOH) and acids (HCl) which
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my front radar and observed the vehicle traveling at a speed of 75 MPH in a 65 MPH zone. As the vehicle continued past me‚ I checked my rear radar and observed the vehicle traveling at a speed of 75 MPH. I stopped‚ turned around and activated my emergency equipment. I stopped the vehicle in the 700 block of North U.S. 81. I approached the driver side window and made contact with a white male who was identified as Javier Leon-Grado
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STANDARDIATION OF ACID AND BASE Eunice Ivy B. Gamboa ABSTRACT Solutions of known concentration are prepared by dissolving measured masses of standard acids in distilled water. The concentrations of unknown solutions of sodium hydroxide are determined by titration. An acid solution reacts with a base solution in a "neutralization" reaction. Titrations permit the concentrations of unknown acids/bases to be determined with a high degree of accuracy. In order to analyze unknown acids/bases‚ we must have a "standard"
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BASE ISOLATED BUILDINGS What is base isolation? When a building is built away (isolated) from the ground‚ resting on flexible bearings or pads known as base isolators. It is of the most popular means of protecting a structure against earthquake forces. HISTORY The first evidence of architects using the principle of base isolation for earthquake protection was discovered in Pasargadae. One of the world’s first base-isolated structures – the William Clayton building Base Isolation
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