(quicklime) in a strongly exothermic reaction: CaO(s) + H2O(l) → Ca(OH)2(s) Calcium hydroxide‚ Ca(OH)2‚ is an ionic solid that is only slightly soluble in water. Solid Calcium Hydroxide: A calcium hydroxide solution is also referred to as limewater. A saturated solution of calcium hydroxide has the solid in equilibrium with its ions as shown below: Ca(OH)2(s) ↔ Ca2+(aq) + 2OH-(aq) Recall that a saturated solution is a solution
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Acid-Base Titrations 6-3: Concepts in Acid-Base Titrations Titrations provide a method of quantitatively measuring the concentration of an unknown solution. In an acid-base titration‚ this is done by delivering a titrant of known concentration into an analyte of known volume. (The concentration of an unknown titrant can also be determined by titration with an analyte of known concentration and volume.) Titration curves (graphs of volume vs. pH) have characteristic shapes. The graph can be used
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Acid –Base Titration: A volume of 128 mL of 0.650 M Ba(OH)2 was required to completely neutralize 50.0 mL of nitric acid solution (HNO3). What is the concentration of the acid solution? Gravimetric Titration: Calculate the molar concentration of Ba2+ ions in a 500.0 mL sample of an unknown aqueous solution if 2.47 g BaSO4 is formed upon the addition of excess Na2SO4? Stoichiometry of Acid –Base Reactions: What volume of 0.800 M HCl is required to completely neutralize 35.0 g of Ca(OH)2
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ACID BASE TITRATION OBJECTIVES 1. To demonstrate the basic laboratory technique of titration 2. To learn to calculate molarity based on titrations INTRODUCTION Molarity (M) or molar concentration is a common unit for expressing the concentration of solutions. It is defined as the number of moles of solute per liter of solution (or millimoles of solute per milliliter of solution). The concentration of a basic solution can be determined by titrating it with a volume of a standard acid solution (of
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Experiment 2b: Determination of the ASA Content of Aspirin Due Date: September 16‚ 2013 Experiment#: 2b Title: Determination of the ASA Content of Aspirin Aim: To determine the Molar Concentration of NaOH and HCl acid used in their Standardization processes and to determine the acetylsalicylic acid (ASA) content in Aspirin. Materials/Apparatus: materials used are the same as that outlined in the laboratory procedure prepared by the laboratory instructor. Procedure: The procedure used
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Chemistry Lab Report on standardization of acid and bases. Purpose: To prepare standardize solution of sodium hydroxide and to determine the concentration of unknown sulfuric acid solution. Data and Calculations: This experiment is divided into two parts (Part A and Part B). In the first part of experiment‚ the standardize solution of sodium hydroxide is prepared by titrating it with base Potassium hydrogen phthalate (KHP). The indicator Phenolphthalein is used to determine that whether titration
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Society can broadly be defined as the aggregate of people in a more or less ordered community or an economic‚ social‚ or industrial infrastructure‚ made up of a varied collection of individuals. It has been evolving from the time the first men appeared on earth to the present moment. An Industrial society is a society driven by the use of technology to enable mass production‚ supporting a large population with a high capacity for division of labour. A post-industrial society is one where the service
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10: Acid/Base Balance Worksheet Assignment Due: Week 1 Student instructions: Follow the step-by-step instructions for this exercise found in your text and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Please make sure that your answers are typed in RED. Please type your Name and Student ID Number here: Michael Rowland 4035527 Respiratory Acidosis and Alkalosis Activity 1: Normal Breathing 1. At 20
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Before we began naming acids and bases we must understand each term. A base is a compound that produces hydroxide ions when dissolved in water. An acid is a compound that produces hydrogen ions in solution is a hydrogen-ion donor‚ or electron –paired accepter. The name of the acid depends on the ion’s ending and the number of hydrogen atoms must be equal to the negative charge‚ and the name of a base depends on if it contains OH or hydroxide. The naming of an acid depends on the suffix of the cation
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COMPARE AND CONTRAST Russell St.John Ashford University English Composition I 121 Dr. Pamela Klem November 25‚ 2011 Hybrid/Electric Cars vs. Gas Powered Cars There are many makes and models of vehicles on the market that claim to be both environmental friendly and cost effective. The American automotive industry along with their foreign counterparts has provided the consumers with affordable vehicles. It is estimated that alternative vehicles will make up less than 10 percent
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