platedmetals include nickel‚copper‚ and gold. While the electroplating is in progress‚ additionalsalts of the metal to be plated must continually be added to the platingsolution‚ or else the anode must be renewed‚ if it consists of the platingmetal. If the coating metal does not form a strong alloy with the metal to be plated‚ it may be necessary to first coat with an intermediate metal; for example‚ when plating silver on steel‚ it is customary to first place a coating of copper over the steel. When
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Title: Finding the Ratio of Mole of Reactants in a Chemical Reaction Purpose of Lab: To find the coefficients of two chemical reactants that appears in a balanced chemical equation using the continuous variations method. Pre Lab Questions: 1. 2AgNO3(aq) + K2CrO4(aq) → 2KNO3(aq) + Ag2CrO4(s) 2. There is enough to make a valid conclusion because‚ on the graph‚ one can clearly see that the two lines intersect. Thus‚ one can also determine the mole ratio. The mole ratio is approximately
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Determination of the Activation Energy of an Enzyme Catalysed Reaction PRACTICAL Report & Criterion Reference Grid * The expected sequence and details required for your practical report are outlined below. Please follow them closely‚ as they will facilitate the production of a structured report. * An introduction giving a synopsis of the experiment and the importance of rates of reaction and activation energy. This section should also state the aim of the practical (0.50-page) – 5 marks
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Investigatory Project I. Problems and Setting A. Introduction Batteries‚ years ago‚ have taken the world by a storm and have since than became a necessity in one’s household. Sadly‚ even though they are tremendously useful‚ batteries have drawbacks‚ such as semi- affordable costs‚ limited shelf life and pollution. I had an idea on how to make an alternative to this that would not only work like the real thing but would also be healthy to our environment and light in my pockets
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The World Copper Factbook 2013 About ICSG The current members of ICSG are: Australia The International Copper Study Group (ICSG) was formally established as an autonomous inter-governmental organization on 23 January 1992‚ following a series of Ad Hoc meetings sponsored by the United Nations (UNCTAD) in 1986 and 1987 to review the world situation of copper and discuss the need for such a body. ICSG serves to increase copper market transparency and promote international discussions
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Affecting Reaction Rate Lab Report Objective: To observe and record the different effects of reactants on concentration‚ surface area‚ and temperature‚ on the reaction rates for each. Materials: Refer to the Experiment 18A worksheet Procedure: Refer to the Experiment 18A worksheet Data Table: Mass of 11cm strip of Mg: 0.13g Average mass of 1 cm piece of Mg: 0.0118 Table 1: Effect of Concentration on Reaction Rate Concentration of Acid Reaction Time (s) Reaction Rate (g Mg/s)
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ductile metal slightly harder than gold. Silver is extremely flexible‚ this means that it can be converted into both flat sheets and electrical wire. This makes silver is an ideal metal for all kinds of industrial use. Silver occurs in lead‚ Zinc and copper ore deposits. Lead ore is the main source of Silver. In fact‚ 75% of the resources in the world are found in association with other metal ores. The most important mineral is argentite‚ Sulphur Sulphide. Secondary sources are price sensitive. Secondary
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‘Kinetics’ is the study of chemical reactions. The speed of a reaction can vary depending on many variables such as the nature of the reactants‚ particle size‚ concentration and temperature. For a chemical reaction to occur‚ there must be a collision between reactants. The reaction rate is slower when the reactants are large and complex molecules because it takes longer for the molecules to combine together creating a chemical reaction. More than 2000 years ago‚ Democritus‚ who was a philosopher
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Lab 5: The SN2 Reaction: 1-Bromobutane From K. L. Williamson‚ Macroscale and Microscale Organic Experiments‚ 2nd Ed. 1994‚ Houghton Mifflin‚ Boston. p247; revised 2/22/02 Prelab Exercise: Write a detailed flow sheet/ flow chart for the isolation and purification of 1-bromobutane. Designate how each minor-product is removed from the major product and which layer holds the product in each experimental step performed. [pic] Introduction This experiment utilizes SN2 chemistry
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success. The most suitable material is going to be selected through comparisons among copper and aluminum alloys‚ which are commonly used in designing frying pan. This report is consisted of three parts. The first part is the introduction and objection. Second part is the findings and analyses through comparing two kinds of materials and the conclusion will be the last part. Objective People normally pick copper‚ cast iron‚ and aluminum alloys as the raw material for making a frying pan because
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