BUFFER SOLUTION (ACID) An acidic buffer solution is simply one which has a pH less than 7. Acidic buffer solutions are commonly made from a weak acid and one of its salts - often a sodium salt. Objectives: 1. Measure the pH of the unknown solution first with indicators and then with pH paper. 2. compare the buffer solution with both a strong acid and a weak acid materials: 2 30 mL beakers 2 100mL volumetric flask 1 10mL pipet 2 aspirator 1 50mL graduated cylinder 1 10mL graduated
Free PH Acid dissociation constant Acid
Crystal Sotelo Public Speaking November 18‚ 2012 Effective Speech President Obama and John F. Kennedy are both effective speakers. I will critique President Obama’s Tucson Memorial Speech and John F. Kennedy’s Moon Speech. However‚ the speech of Obama was more effective than John F. Kennedy’s speech. An effective speech should have a public speaker who will either‚ persuade‚ inform‚ or entertain their audience. The public speaker should also have good eye contact with his/her audience‚ be
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Effective is successfully producing the result that we want. Team is a group of people who work together to achieve goal. So‚ the effective team means a group of people that successful to achieve their goal by work together. The team has two or more members and members have responsibility to their role in teams‚ can communicate effectively with other‚ and concerned in participate management. The effective team need a high cooperation among the member in the team and a good leadership to control‚
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Problems and Solutions 1 CHAPTER 1—Problems 1.1 Problems on Bonds Exercise 1.1 On 12/04/01‚ consider a fixed-coupon bond whose features are the following: • face value: $1‚000 coupon rate: 8% • coupon frequency: semiannual • maturity: 05/06/04 • What are the future cash flows delivered by this bond? Solution 1.1 1. The coupon cash flow is equal to $40 8% × $1‚000 = $40 2 It is delivered on the following future dates: 05/06/02‚ 11/06/02‚ 05/06/03‚ 11/06/03 and 05/06/04. The redemption value
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‘Final Solutions’: A Quest For Solutions To The Communal Problems In India *Mosarraf Hossain * Fazila Manzil (flat-4/B) Aman apartment‚ 21/49‚ kuttitola‚ Malda-732101 ABSTRACT India is a country of communal diversity. The existence of such society demands mutual understanding among its religious sects. But more than once the harmonious chord has strained and a series of communal riots has maligned her history –in the recent decades the rot is a bit speedy. Wherein lies the solution to such
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Are Curfews Effective and Constitutional? After being gone for several decades‚ juvenile curfews have reappeared in communities across the United States. Researchers estimate that nearly 75 percent of major American cities now enforce some form of a nocturnal curfew. A 2004 survey of 300 adult residents in San Diego revealed that 92 percent supported the city’s juvenile curfew‚ 72 percent agreed that the curfew made them feel safer‚ and 87 percent believed that the curfew helped control crime
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Effective Teams A “team” is defined as a small number of people with complementary skills who are committed to a common purpose‚ set of performance goals‚ and approach for which they hold themselves mutually accountable (Bateman‚ Snell‚ 2011). Effective work teams magnify the accomplishments of individuals and enable you to better serve customers. Although companies have used teams for a long time‚ they are used with greater effect than in the past. There are a few differences between the traditional
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5 Solution Preparation 1. Why should the solutions be prepared with 0.10M HCl used as solvent? a. What will happen to Fe3+ if the solution was not prepared using 0.10M HCl? b. Give the balanced equation for the 1st hydrolysis of Fe3+. c. What is the color of the product of 1st hydrolysis of Fe3+? d. What is the effect of the product of 1st hydrolysis to the absorbance of the solution? Determination of Analytical Wavelength 2. Why should the solution with
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Conductivity of Ionic and Molecular Aqueous Solutions Abstract Aqueous solutions that have free ions have higher conductivity values than solutions with most molecules. The purpose of the experiment was to see if ionic strength of an aqueous solution determines its conductivity. We tested each compound by putting the conductivity probe into its aqueous solution. Then the computer would analyze the data and give us a conductivity value. After each solution was tested‚ we used deionized water to
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EFFECTIVE SPEAKERS For Ms. Laura Alderson‚ Instructor of Management University of Memphis by Morgan D. Parks November 22‚ 2011 Effective Speakers President William Jefferson Clinton‚ the 42nd President of the United States is a prime example of what it means to be an effective speaker. Although George H.W. Bush and Bob Dole were highly qualified opponents in the 1992 and 1996 elections‚ it was Clinton’s presentation skills and ability to work an audience that earned him his back-to-back
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