Oxidation Lab Part 1: Purpose: You are going to investigate the ease with which different metals undergo oxidation and reduction. Materials: | 4 samples of each of: lead‚ zinc‚ iron‚ copper | spot plates steel wool/sand paper | | | | Solutions of: | copper(II) sulfate Ferric nitrate Silver nitrate Lead (II) nitrate | | Procedure: 1. Obtain 4 samples of each metal and clean with steel wool or sand paper. Wash your hands after cleaning the metals so you are not exposed to lead
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Conclusions At the end of Part A in this experiment‚ it can be determined that Sodium Chloride had the highest amount of conductivity tested by all groups. On the graph above‚ the data shows that NaCl (sodium chloride) held the highest amount of electrical conductivity for all groups and on the table it reads the highest numbers across its row. Also as seen in the data above‚ ethanol had the lowest amount of conductivity with sucrose‚ acetic acid‚ ammonia‚ and MgCl2 following in ascending order
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Abstract The present study‚ considering Barium strontium titanate due to its important applications in the electronic device as the piezoelectric material due to excellent performance as sensing and actuation. Barium strontium titanate nanocrystalline ceramic have been synthesized from mechanical alloying of commercially available BaCO3‚ SrCO3 and TiO2 by high energy ball milling. This method has produced nano-sized particles as well as highly reactive surface‚ can cause structural relaxation of
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On the right in Figure 27 shown the power density spectral of noise measurements at low frequencies‚ from 1 Hz to 14 Hz and used commercial resistance of 1 kΩ to compare 2 different current generators. The curves in red color correspond KEITHLEY 2400 series and the curves in black color correspond to the ADRET current generator. The KEITHLEY generator slightly lower noise than ADRET generator. However‚ theoretically the differential measure with correct polarization can suppress this kind of noise
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NATIONAL UNIVERSITY OF RWANDA FACULTY OF APPLIED SCIENCES DEPARTMENT OF COMPUTER SCIENCE BACC IV ACADEMIC YEAR: 2012-2013 CHAPTER 1. TOPIC: DESIGN AND IMPLEMENTATION OF AN ONLINE COMPUTER LABS MONITORING SYSTEM CASE STUDY: NATIONAL UNIVERSITY OF RWANDA ICT CENTER/Helpdesk Unit
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Case Analysis Kaspersky Lab: From Russia with Anti-virus Industry Background: Software Security Cybercrime has become a fast growing concern for the 21st century as businesses‚ institutions and individuals grow into an interconnected web of computer networks. Online business transactions‚ along with the sharing of personal information‚ are vulnerable to a host of disasters that can reap economic and social havoc. Some sources say that today‚ cybercrime costs more than $1.0 trillion to society--Global
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41. In thylakoids‚ protons travel through ATP synthase from the stroma to the thylakoid space. Therefore the catalytic knobs of ATP synthase would be located a. on the side facing the thylakoid space b. on the ATP molecules themselves c. on the pigment molecules of PSI and PSII d. on the stroma side of the membrane e. built into the center of the thylkoid stack (granum) 42. Which of the following statements best represents the relationships between the light reactions and the Calvin cycle?
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Purpose: To use electrochemistry to extract metals from ionic compounds in solution Procedure: -Start by attaching battery snap connector to a battery and fill beaker with between 100 and 200 mL of copper (II) sulfate solution -Connect clip to each of the nickel strips -Place nickel strips in copper sulfate solution without strips touching -Put one clip on the positive side of the battery and the second to the negative side. Observe -Switch clips to the opposite charged sides of the battery
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AP* Chemistry ELECTROCHEMISTRY Terms to Know: Electrochemistry—the study of the interchange of chemical and electrical energy OIL RIG – oxidation is loss‚ reduction is gain (of electrons) Oxidation – the loss of electrons‚ increase in charge Reduction – the gain of electrons‚ reduction of charge Oxidation number – the assigned charge on an atom Oxidizing agent (OA) – the species that is reduced and thus causes oxidation Reducing agent (RA) – the species that is oxidized and thus causes reduction
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on chemical reaction that take place in a solution at the interface of an ionic conductor and electron conductor‚ and where electron transfer is involved‚ is called Electrochemistry (Grimshaw‚ 2000). In electrolysis‚ where a chemical reaction is conducted by an external voltage‚ it is called an electrochemical reaction. Electrochemistry focuses on situations that involve oxidation and reduction reactions that are separated but connected by an external electric circuit. The decomposition of water into
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