The aim of the experiment was how to determine the molarity of a solution. My hypothesis was if I have to determine the molarity of a NaOH solution‚ then I would have to use a standard solution of HCl solution because I would need to neutralize each other to determine the concentration of the solution of NaOH. The method that I used for this experiment was titration. Titration helped me achieved the result on figuring out the unknown molarity of the solution. Throughout the experiment‚ I obtained the
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how chemistry affects us today. Our entire universe is made up of matter which is constantly changing forms and evolving into other forms of energy. Most people have chosen to write their essay about how chemistry has played an important role in everyday life. The simple fact is that chemistry plays an important role in every person’s daily activities from the moment we’re born. Chemistry is the branch of science that deals with the structure of organic and inorganic matter( any substance or organism
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Experiment : 1 Tittle : Preparation of bis(acetylacetonato)copper(II) complex Objective : To synthesis the bis(acetylacetonato)copper(II) complex Introduction : A complex ion is usually form with high charge density metal ion as a central and formation of coordinate covalent bond (dative bond) with high electron molecules or ions. These molecules or ions are functioning as ligands (electrophile in organic compounds). They are easily attracted by electrophile (electron deficiency
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Linear Measurements Purpose How thick is one of the hairs on your head? Could it be measured accurately with a standard inch scale? If the smallest increment on an inch scale is 1/16 inch‚ then 20 average size human hairs could fit within the space of a 1/16 inch gap. The required degree of accuracy needed is dependent on the application. If you were to build a home‚ a standard inch scale is perfect for laying out walls and locating window openings.A dial caliper is a precision measurement tool
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The Idea of Technique tech·nique [tek-neek] 1. Method of performance; way of accomplishing. 2. Technical skill; ability to apply procedures or methods so as to effect a desired result. Acquiring technique is mostly a process of brain/nerve development‚ not development of finger strength. Skill is acquired in two stages: (1) discovering how the fingers‚ hands‚ arms‚ etc.‚ are to be moved‚ and (2) conditioning the brain‚ nerves‚ and muscles to execute these with ease and control. Many
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Chapter 1 * What is Chemistry? -it is the study of the composition of substances and the changes they undergo. * What are the 5 branches of chemistry? * Organic chemistry‚ inorganic chemistry‚ analytical chemistry‚ physical chemistry‚ biochemistry. * What is the difference between a theory and law? -a theory is a thoroughly tested explanation of why experiments give certain results. A scientific law is a concise statement that summarized the results of a broad spectrum of observations
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protected under the AWA can be abused and tortured. And the law doesn’t require the use of valid alternatives to animals‚ even if they are available. According to the Humane Society‚ registration of a single pesticide requires more than 50 experiments and the use of as many as 12‚ 000 animals. Several cosmetic tests commonly performed on mice‚ rats‚ rabbits‚ and guinea pigs include: skin and eye irritation tests where chemicals are rubbed on shaved skin or dripped into the eyes without any
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Academic Note Quantitative measures of performance evaluation of salespersons Abstract Aim here is to understand the evaluation techniques used by the firms and understand the quantitative measures used for evaluation. An overview of the analysis is presented after reading various research papers which have been written on similar lines. One of the most important factors that a sales manager has to look after is the performance evaluation of the salesperson. The methodology adopted to evaluate
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Explain the effects of the Purges? Introduction The Great Purge was a campaign of political repression in the Soviet Union orchestrated by Joseph Stalin from 1934 to 1939. It involved a large-scale purge of the Communist Party and government officials‚ repression of peasants and the Red Army leadership‚ and widespread police surveillance‚ suspicion of "saboteurs"‚ imprisonment‚ and arbitrary executions. 1st Para Scientists‚ Doctors and Engineers‚ were heavily targeted‚ imprisoned and killed.
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Absorbance of Light vs. Concentration of Colored Solution Introduction: Performing this lab showed the importance of light in virtual drug screening because light can be used in a variety of ways to obtain different kinds of information in research. Light can be used to determine the concentration of DNA or protein in solution‚ tag different objects such as cells‚ protein structures‚ or bacteria in order to determine whether there is a large amount of a certain substance‚ and to determine the size
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