iodide) by using precipitation method. Aim: To produce 1.50 g of lead iodide‚ PbI2‚ assuming 100 % conversion‚ using 1.00 g solid potassium iodide‚ KI‚ and 0.1 M lead nitrate‚ Pb(NO3)2 solution of volume 30 cm3 and hence calculate percentage yield. Calculations: 2KI(s) + Pb(NO3)2( aq) —> PbI2 (s) + 2KNO3 (aq) Mass of PbI2 to be produced = 1.5 g Moles of PbI2 = = 0.003 Moles of KI = 0.003*2 = 0.006 Mass of KI = 0.006*166 = 1.00 g Moles Pb(NO3)2 = 0.003 Volume Pb(NO3)2 = = 0.03 dm3 = 30
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2.2 Solving Quadratic Equation A quadratic equation can be solved by using: 1. Factorization i) Arrange the unknowns in general form (ax2+bx+c=0) and factorize it 2. Completing the square i) x2-6x+4=0 ii) x2-6x=-4 iii) x2-6x+-622=-4+-622 iv) x2-6x+-32=-4+-32 v) x-32=5 vi) x-3=±5 vii) x=3±5 viii) x=3+5 OR 3-5 ix) x=5.236/0.7369 3. Quadratic formula x=-b±b2-4ac2a * Forming quadratic
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This document of HRM 326 Week 4 Discussion Question 2 contains: How is a virtual classroom similar to a traditional classroom? How is it different? What is the benefit of combining web-based training with classroom training? Give an example. Business - General Business HRM 326 Entire course HRM 326 Week 1 Organizational Focus and Goals HRM 326 Week 2 Training Key Areas HRM 326 Week 3 Needs Analysis HRM 326 Week 4 Delivery Methods HRM 326 Week 5
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This work of ETH 125 Week 4 Discussion Question 2 includes: Do you think perceptions of American Muslims and Muslims in general have changed since 9/11? If yes‚ are these changes justified? Why? If not‚ why do you believe they have not changed? General Questions - General General Questions Week 4 DQ2 Do you think perceptions of American Muslims and Muslims in general have changed since 9/11? If yes‚ are these changes justified? Why? If not‚ why do you believe they have not changed
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Colossians 4:2-6 sermon 2 Continue steadfastly in prayer‚ being watchful in it with thanksgiving. 3 At the same time‚ pray also for us‚ that God may open to us a door for the word‚ to declare the mystery of Christ‚ on account of which I am in prison— 4 that I may make it clear‚ which is how I ought to speak. 5 Walk in wisdom toward outsiders‚ making the best use of the time. 6 Let your speech always be gracious‚ seasoned with salt‚ so that you may know how you ought to answer each person. Introduction
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Week 10: Oxidation and Reduction Reactions: The Reactions of Copper Data: Part I: Preparing a solution of copper (II) nitrate Initial mass of copper wire: .520g Mass of copper wire after vigorously scouring: .518g Observations of Copper (II) ribbon mixed with HNO3: Solution turned green. Thick brown gas formed. Copper (II) bubbled vigorously. Cu (II) dissolved‚ solution appeared green/blue. After the addition of H2O a blue crusty precipitate formed. Part II: Synthesis of solid copper
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Chemical Reactions Lab Objectives: 1. To examine a variety of reactions including precipitation‚ acid-base‚ gas forming‚ and oxidation-reduction reactions. 2. To identify the products formed in these reactions and summarize the chemical changes in terms of balanced chemical equations and net ionic equations. 3. To identify the species being oxidized and reduced in oxidation-reduction reactions and determine which species is the oxidizing agent and the reducing agent. Chemical equations represent
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In this pack of ETH 316 Week 4 Discussion Question 2 you will find the next information: Identify an organization with which you are familiar. What are some factors in this organization that might affect the strategies they take in developing their socially responsible efforts? What are some of these efforts? Your answer should be between 100-150 words General Questions - General General Questions ETH 316 Week 4 DQ2 Not all organizations have moved to develop socially responsible
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Assignment Title: Corporate Communications Unit 4: Business Communication Task Two Qualification BTEC Business Level 3-90 Credit Diploma in Business Unit number and title Unit 4- Business Communication Assessor name Frank Gyan-Amponsah Date issued 24th October 2014 Hand in deadline 7th November 2014 PURPOSE OF ASSIGNMENT: The purpose of this assignment is to know and understand corporate communications LEARNING OUTCOMES: On completion of this unit a learner should: 1 Understand
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United States History book Chapter 4-2: Triangular Trade in the Colonies Vocabulary Triangular trade: trade between Africa‚ the West Indies‚ and New England Enforce: to make sure something is done according to a law Unite: to join together as a single unit Rebellion: a group fighting another group that is in power Notes New England‚ Africa‚ and the West Indians formed a trade triangle. It was outside of British control. It made more money for the colonials. The increasing colonial businesses
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