Experiment 2 Preparation of Primary Standard solutions and Standardizing Acid and Base solutions Objectives: The objective of this experiment is: 1- To prepare two primary standard solutions‚ KHP and Na2CO3 2- To standardize a sodium hydroxide solution using the prepared primary standard KHP. 3- To standardize a hydrochloric acid solution using the prepared primary standard Na2CO3. 4- To calculate the concentration of an unknown acid or base. Introduction A primary standard is a standard that
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Mexican President Santa Anna. The main disputes the annexation of Texas‚ territorial issues and poor leadership. With more Americans moving into Texas‚ the territory seemed promising to newly elected US Polk. The expansionist mentality of the country led Polk to try and acquire Texas. On March 1st‚ 1854 “President John Tyler signed the proposal of statehood for Texas but it didn’t pass through Congress” (softschool) . Mexico warned of war as a result. In June of 1845 the Texas is officially annexed
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Philosophy Patch Adams: Primary & Secondary Reflection The movie Patch Adams is a true to life story of Dr. Hunter “Patch” Adams. The movie tells a lot of truth about life with depth. And all throughout the movie there are scenes that show both primary and secondary reflection. Primary Reflection is superficial‚ shallow and it reduced the person to details. The person is considering being an object
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The observation of teaching at a local primary school provided me with an opportunity to watch how teachers interact with their students. I could see that teaching methods are becoming more diverse nowadays and multimedia is integrated into classrooms. Some teachers still put emphasis on rote learning by asking students to repeat words and sentences over and over again‚ while others adopted more dynamic approaches such as teaching through role play and group discussion. Teaching mathematics with
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LED Market in Asia-Pacific Would Reach $35.79 Billion by 2020‚ Projects ApacMarket.com According to a new report by ApacMarket.com‚ "Asia-Pacific Light Emitting Diodes (LED) (China‚ Japan‚ South Korea‚ India) Market (Technology‚ Application and Countries) - Analysis‚ Segmentation and Forecast‚ 2014 - 2020"‚ the Asia-Pacific LED market is expected to reach $35.79 billion by 2020‚ at a CAGR of 15.7% during the forecast period (2015-2020). The high brightness LED segment is expected to grow swiftly
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critical when they use sources for new materials. To help the historian by evaluating and organizing‚ the sources fall into two categories: primary sources and secondary sources. Primary sources are materials produced by people or groups of people directly involved in the event or topic under consideration‚ either as participant or as witnesses. In other words‚ primary sources are
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Protein Structure on a Tertiary Level The third of four levels of protein structure is the tertiary level. The primary level are strands of the 20 amino acids‚ the secondary level are alpha helix and beta pleats‚ the tertiary level are a combination of helix‚ pleats‚ and bends‚ and the quaternary level involves multiple polypeptide bonds. The tertiary level is a three dimensional level that allows the protein to be fluid and move and make up the R group in the protein structure. There are four
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LED Flasher Circuit Project Overview : This project involves the design‚ documenting and building of a LED flasher circuit controlled by a software program written in the C programming language. The hardware circuit consists of a PIC 16F684 microcontroller‚ ten LEDs with resistors ‚ and two switches. Software Program The software program will read the settings of the two switches. If both switches are off‚ the LEDs are all off. Any other switch settings will start the LEDs flashing in a unique pattern
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system is vital to ensure English citizens are protected as well as aware of their rights. English law is made up of several different forms of law these include legislative sources (primary legislation: Acts of parliament‚ Delegated legislation and European legislation) and judicial sources (common law and equity). Primary Legislation is a term used for all the proposals passed by parliament to become law. The process starts with a bill which can be presented in the House of Commons or the House of
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SCHOO: .TSHWELOPELE PRIMARY SCHOOL DISTRICT: TEMBA GRADE: DATE SCHOO: .TSHWELOPELE PRIMARY SCHOOL DISTRICT: TEMBA GRADE: DATE GAUTENG DERPARTMENT OF EDUCATION PAG E ......OF.....PAGES GDE PROGRESSION
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