of anhydrous copper sulfate (CuSO4) is white because it reflects lights in visible region of spectrum. Once water is added‚ it changes to blue as the structure of the copper transitional compound becomes Cu(H2O)4 SO4 - H2O where four water molecules are bound to the copper ion and the fifth is a water of crystallization. This compound absorbs light of wavelengths from 600 to 800nm (yellow-to-red region) light and blue light is transmitted. When ammonia is added to a solution of copper(II) cation‚
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motherboard‚ which the motherboard is designed to accommodate. Yet the lightweight make up of aluminum is beneficial because it adds little weight and stress to the motherboard. One of the best and most common materials used to make heat sinks is copper. Copper has a very high thermal conductivity of 400 W/mK. It is‚ however‚ heavier than aluminum and more expensive. But for operating systems that require an extensive amount of
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different chemicals and what chemical has more reactivity series then other Hypothesis: Iron + Copper Sulfate: Iron will displace copper because it is more reactive and it is going to end up as Iron Sulphide + Copper Copper + Silver Nitrate: Copper will displace Silver because it is more reactive and it is going to end up as Copper Nitride + Magnesium + Copper oxide: Magnesium will displace Copper because it is more reactive. Aluminum + Iron Oxide: Aluminum will displace Iron because it is more
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with the dried sample‚ which will produce elemental copper. By measuring the mass of copper that forms‚ you will have the necessary information to determine the moles of copper and chlorine in your sample‚ and you will be able to establish the proper chemical formula. OBJECTIVES • • • In this experiment‚ you will Ev al Determine the water of hydration in a copper chloride hydrate sample. Conduct a reaction between a solution of copper chloride and solid aluminum. Use the results of the
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illness develops from copper poisoning. Wilson’s Disease affects one in thirty thousand people world wide. The genetic defect causes excessive copper accumulation. Small amounts of copper are essential as vitamins. Copper is present in most foods‚ and most people get much more than they need. Healthy people excrete copper they don’t need‚ but Wilson’s Disease patients cannot. Copper begins to accumulate immediately after birth. Excess copper attacks the liver
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we will study is called copper chloride hydrate. We first drive out the water‚ which is called hydration. This occurs if we gently heat the sample to a little over 100*C. The compound formed is anhydrous (no water) copper chloride. If we subtract its mass from that hydrate‚ we can determine the mass of the water that was driven off‚ and using the molar mass of water‚ find the number of moles of H2O that were in the sample. Next‚ we need to the find either the mass of copper of chlorine in the anhydrous
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The Role of the Citric Acid Cycle The Citric Acid Cycle is a series of enzyme-catalysed reactions that take place in the mitochondrial matrix of all aerobic organisms. It involves the oxidation of the acetyl group of acetyl CoA to two molecules of carbon dioxide. Each cycle produces one molecule of ATP by substrate-level phosphorylation‚ and reduces three molecules of NAD and one molecule of FAD for use in Oxidative Phosphorylation. The cycle is preceded by Glycolysis‚ which also occurs in anaerobic
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Salts Purpose: To examine the reaction of various metals with ionic salts Materials: * 4 test tubes * test tube racks * 10mL measuring cylinder * 4 metals (in containers)- Zn‚ Sn‚ Mg‚ Fe * copper (II) sulphate solution Safety: 1. Be careful with copper (II) sulphate solution it is poisonous and corrosive. handle with care 2. Do NOT BREATH in any gases produced 3. If you touch any of the metals‚ you MUST wash your hands at the end of the lab Procedure:
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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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hydrated copper (II) sulphate compound? Controlled Variable: The mass of hydrated copper (II) sulphate. Responding Variable: The mass of dehydrated copper (II) sulphate‚ mass of H2O Materials: Ones on the handout + Hot plate. Procedure: 1. Mass 3.00g of hydrated copper (II) sulphate using electronic balance 2. Measure the mass of a thin‚ crucible dish using electronic balance 3. Gently pour hydrated copper (II) sulphate into the crucible dish 4. Heat the hydrated copper (II)
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