EXPERIMENT 4: BACK TITRATION CONTENT NO. CONTENT PAGE 1. Synopsis 3 2. Introduction 3 3. Theory 4 4. Procedure 4 5. Results and Calculations 5 – 6 6. Discussion 7 7. Conclusion 7 8. References 8 1. SYNOPSIS The purpose of this experiment is to use the back titration method to determine the percentage of calcium carbonate in toothpaste. Instead of using standard titration methods where an acid is titrated directly using a standard solution of a base‚ back titration is used because
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Derivation of “quick and dirty” approximation of bias formula Thomas Noe Balliol College/SBS 21st October‚ 2013 This note relates to the derivation of the “quick and dirty” formula for estimating the bias generated by using the YTM as an approximation of the expected return on debt. The assumptions: 1. Debt is perpetual 2. probability of default is δ in each period. The probability is the same in every period 3. If default occurs‚ bondholders receive ρ fraction of the face (principal) value
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As parents around the country purchase new pencils and backpacks‚ they may be surprised to learn “nature” is one more thing they should put on the back-to-school supply list. According to a new report by National Wildlife Federation‚ Back to School: Back Outside‚ time spent outdoors both during school and at home helps children become high-performance learners and score higher on standard tests. Unfortunately‚ American children spend only minutes a day playing and learning outdoors which presents
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people watch the news on a daily basis‚ but are unaware of the bias that the media contains. Bias is when someone only gives the side in their favor in an attempt to persuade another person. News sources tend to lean a certain way‚ politically‚ and because of this their bias will often show in the information given to viewers. The news tends to show the negative acts or confrontation in situations‚ but fall short to show the full story. Bias in the media is a way for more ratings‚ to make the story more
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* Think of a person in this world whom you most like or dislike. Describe the trait that makes you like or dislike him or her and find reasons for this trait. State both the trait and the reason for it. Example: The truck in the right lane ahead of me began to drift into the left lane‚ leaving the three cars ahead of me little choice but to brake. If they had not done so‚ they would have had no alternative but to swerve into the oncoming traffic‚ and the resulting accident would have been quite
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Criminal Justice Theories Jason Shockley Is the Criminal Justice System Bias By: David Atkins Abstract This paper will ask several questions and hopefully answer most of those questions. Questions like is the criminal justice system bias against the poor and is the criminal justice system bias against minorities. We then explore some of the possible solutions to the problems that could cause biases. We then look at a study done on several communities where relations between police
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Citing Sources Every time you use information from a source (a book‚ website or dictionary‚ etc.) when completing your assignments‚ follow these steps: Step 1: Put the information you are using in your own words. Think about it this way….What does the sentence mean to you? How would you explain this information to someone else without using the source’s exact words? o Remember: Never copy and paste information into your assignments! Step 2: Then put that source at the bottom of your assignment
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P3 Introduction For this task I will be considering the sources of finance I will need for my company. Why might a business require finance? A business may require finance because they can either: • Be setting up a new business and they do not have enough money to start up. • They may need new equipment to help make the business expand and make more profit. • Or they may even want to replace old machinery. • They may want to move there store to a better location that might benefit there
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* Biology past papers 2002 1 List an external feature of each of the following types of organism that would identify the Group to which it belongs. type of... Premium * Business Past Paper CXC PAST PAPERS SOCIAL STUDIES Before you begin to write your answers‚ choose OE of the following topics and write it in the space provided. (i) ’The... Premium * May 2008 Past Paper Solution cxcDirect Institute Q5. The diagrams below highlight the main areas of Q5 (see past paper for original). R RS
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or correction fluid. Write your name‚ Centre number and candidate number on the Answer Sheet in the spaces provided unless this has been done for you. There are thirty questions on this paper. Answer all questions. For each question there are four possible answers A‚ B‚ C and D. Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet. Read the instructions on the Answer Sheet very carefully. Each correct answer will score one mark. A mark will not be deducted
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