Experiment 9: THE TANGENT GALVANOMETER; PURPOSE: In this experiment we will measure the magnitude of the horizontal component of the Earth’s Magnetic field by the use of an instrument called a tangent galvanometer. INTRODUCTION: A tangent galvanometer consists of a number of turns of copper wire wound on a hoop. At the center of the hoop a compass is mounted. When a direct current flows through the wires‚ a magnetic field is induced in the space surrounding the loops of
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then removed the flask and allowed it to cool on the counter for 4.5 minutes while adding 2 ml of cold distilled water dropwise. I then stirred to mix the contents. I Then added 40ml of distilled water in the solution and stirred until crystals began to form. My crystals formed in a matter of seconds. I then put the flask in a 400ml beaker of ice water to cool it down from room temperature for exactly 10 minutes to complete the crystallization process. I then collected the product in a filtration process
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expect in each of the following cases? a) Presence of pieces of glass in the sample No effect. b) Presence of solvent within the crystals Melting point depression‚ Melting point range broaden. c) Using too large sample when determining the melting point Too much material will broaden range &may increase melting point Lab Questions 1. Define the following A. Melting point B. Intermolecular forces C. Hydrogen bonding 2. Arrange the following
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people know what their Personal Legend is and some have ahcieved it. But in the story The Alchemist a shepherd boy named Santiago achieves his Personal Legend with some help from three major characters who teach him many important things. The crystal merchant is one of the characters that helped Santiago by encouraging him and helping him earn back his money. Another important character who helped Santiago in his journey was the English man. He helped Santiago understand many things that he did
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Paragraph 1 - Compare and contrast the crystal structures and crystal chemistry of quartz‚ α-FePO4 and β-FePO4. Both α-FePO4 (space group: P3121) and α-quartz (space group: P3121 and P3221) belong to the trigonal crystal system‚ while β- FePO4 (space group: P6422) and β-quartz (space group: P6222 and P6422) belong to the hexagonal crystal system. At relatively low temperature‚ FePO4 is tetrahedral in structure. This is similar to the tetrahedral structure of quartz. As temperature increases‚ the
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"Nazi Labs" 네이지 제조법 It almost doesn’t matter what position you hold in law enforcement. 너가 어떠한 법 굴레에 통제받고 있더라도 그것에 대해 신경 쓸 것 없다. Patrolman‚ detective‚ task force officer‚ correctional officer‚ narcotics agent‚ federal‚ state‚ county or local. 그것이 연방‚ 주‚ 국가 혹은 지역에 소속된 경찰관‚ 형사‚ 기동대원‚ 교도관‚ 마약수사관이던간에. If you have not encountered a clandestine methamphetamine lab yet‚ you soon will. 아직 알려지지 않은 메스암페타민 제조법을 접하지 못 했다면 곧 접하게 될 것이다. The occurrence of meth labs in our communities is growing an outrageous
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Reactions in Aqueous Solutions: Metathesis Reactions and Net Ionic Equations Introduction: Metathesis or double decomposition reactions are a reaction in which two compounds react to form two new compounds‚ with no changes in oxidation number. The ions of two compounds exchange partners. AX + BY AY + BX This reaction can occur between two inorganic salts when one product is insoluble in water‚ driving the reaction forward. A typical example is as followed and is considered a molecular equation
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Michael Ames Ms. Martin IPS Per. 1 11-3-09 Sludge Lab Report A few weeks ago‚ I got a container full of “sludge”. I was asked to separate it into its four components and identify each one to help me better understand how to separate mixtures ad identify substances. My original sludge had a liquid on top and solid(s) on the bottom. The liquid was clear‚ and most of the solid was tan. There was a small layer of blackish/brownish particles in the middle of the tan solid. There were small yellow
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respective stoichiometric coefficients that must be determined experimentally. The primary goal essentially for this experiment is to determine the k value or rate constant along with the x and y stoichiometric coefficients given the concentrations of Crystal Violet and Hydroxide. This can be obtained using a spectrophotometer to determine rate of absorbance then graph the rate find a line of best fit‚ determine our rate constant‚ then finally solve for our x and y in the rate law equation. Beer’s law also
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Abstract: The Enzyme Lab results where when the liver was frozen‚ its reaction was fast‚ and when it was hot‚ it was slow‚ and the liver that was at room temperature reacted slowly to medium. Introduction: The Enzyme Lab is to conduct investigations to determine the most favorable conditions for the most efficient enzyme activity. Variables to be used testing include temperature‚ pH values and surface area. Enzymes are proteins that speed up the rate of chemical reactions‚ which would otherwise
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