Title of Practical: The Effect of Concentration on Reaction Rate Aim: To use a simple reaction between sodium thiosulphate and hydrochloric acid to discover concentration this determines how fast chemical reactions occur. Independent Variable: Concentration of hydrochloric acid (%) Dependent Variable: Time taken for chemical reaction to take place (sec) Hypothesis: My prediction is that the increased concentration of the thiosulfate will in turn lead to an increase in the rate of reaction
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Argument for using a computer With the popularity of computers‚ almost every family has one computer. Some parents‚ for various reasons‚ let children use computers for learning‚ relaxing‚ and so on. However‚ children between ages of 6 and 16 are in the growth stage. Simply playing for a couple of minutes is acceptable‚ while using computers for a long time should be discouraged for that it will do harm to children’s eyes‚ discipline‚ self-control and physical growth‚ which mainly reflects in the
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Laguna University RECS Village Bubukal Sta.Cruz Laguna Chapter I Introduction In modern age‚ Information Technological advancement has minimized the whole world. Advancement of technology gave lots of benefits for all industries using it. With the use of advance technology‚ process became more fast‚ accurate and effective. As time passes by computers became more useful for every process being made. Modernization in every transaction became more popular as it reached even small organizations
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1. What are the five major categories of ratios‚ and what questions do they answer? * Liquidity: Can we make required payments as they fall due? * Asset management: Do we have the right amount of assets for the level of sales? * Debt management: Do we have the right mix of debt and equity? * Profitability: Do sales prices exceed unit costs‚ and are sales high enough as reflected in NPM‚ ROE‚ and ROA? * Market value: Do investors like what they see as reflected in P/E and
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Glucose Solution Concentration (%) Absorbance (Arbitrary Units) 1 1.61 0.1 0.32 0.01 0.23 0.001 0.22 How to use a Colorimeter: • A Colorimeter measures the absorbance of particular wavelengths of light by a specific solution. • Firstly to use the Colorimeter you must switch it on 5 minutes before use to allow it to stabilize. Next select the most appropriate filter for the analysis and then anter it into the light channel or the selector depending on the type of Colorimeter you are using to measure
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should be eliminated from the German population.He carried out his goal by using a very systematic plan. One of his main methods of "doing away" with these people was through the use of concentration camps. In a meeting in January 1941 Hitler‚ along with some of his top officials decided on a plan that was called the "final
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Effectiveness of Using Assistive Technology with Students with Learning Disabilities to Improve Reading Comprehension Abdalmajeed Alrabiah University of Wisconsin-Whitewater Effectiveness of Using Assistive Technology with Students with Learning disabilities to Improve Reading Comprehension In 2010‚ the U.S Department of Education provided a national educational technology plan titled‚ Transforming American Education: Learning Powered by Technology. In fact‚ the National Center for Education
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Strengths of Materials Lab #4 CIVENG 303 Section 804 Stress Concentrations Performed October 24th‚ 2013 Today’s Date: November 7th‚ 2013 Tim Hendrickson OBJECTIVE The objective of this lab is to determine a set of changes due to the stress in geometric irregularities in an axially loaded bar. Some of the irregularities include certain features such as holes and notches. QUESTIONS: -The following are formulas are for stress and strain that are biaxial. Sample Material
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Limitations to classic conditioning as a theory Harry Harlow’s Rhesus Monkey is a experiment that took place in the 1950s were he tested classical conditioning as a theory. He separated infant monkeys from their mothers a few hours after birth‚ then arranged for the young animals to be raised by two kinds of surrogate monkey mother machines‚ both equipped to dispense milk. One mother was made out of bare wire mesh. The other was a wire mother covered with soft terry cloth. Harlow’s first observation
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The Strategic Arms Limitation Talks (Salt) was two rounds of conferences and corresponding international treaties involving the United States and the Soviet Union in the Cold War on the issue of missiles. The two rounds of talks and agreements were SALT I and SALT II. Negotiations began in Helsinki‚ Finland‚ in November 1969. SALT I led to the Anti-Ballistic Missile Treaty and an agreement between the two countries. Although SALT II resulted in an agreement in 1979‚ the United States chose not to
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