The calculation produces 5.6806 moles of water/1 mole of anhydrous salt and after rounding to the nearest whole number the ratio 6 moles of water to 1 mole of anhydrous salt forms. Last‚ when plugged into the chemical formula of the hydrate (copper (ii) sulfate)‚ the result is 1CuSO46H2O‚ which is the formula of the
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cobalt nitrate. Furthermore‚ most copper and iron nitrates‚ even with differing sodium compounds produced a precipitate. Exceptions were Cu(NO3)2 with sodium sulfate and sodium chloride. It was also noticed that nickel‚ barium‚ and iron nitrates (excluding those with few with no reaction) across the board had the same color precipitates no matter the sodium compound that it was mixed with.
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Nano-scale Phase Change Materials (PCM’s) and Their Effect on Heat Transfer Fluids Sean Schulte‚ Chaoming Wang‚ Ming Su 1NanoScience Technology Center‚ 2Department of Mechanical‚ Materials‚ and Aerospace Engineering‚ University of Central Florida‚ Orlando‚ Florida 32826. mingsu@mail.ucf.edu Abstract: Introduction: Heat transfer fluids (HTF’s) are often used as carriers in heat transfer equipment. It therefor comes as no surprise that finding a way to make HTF’s more efficient is desirable
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standard conditions‚ is formed when 7.00 g of ethene (C2 H 4 ‚ M r = 28.1) undergoes complete combustion? A. 22.4 × 28.1 7.00 22.4 × 7.00 28.1 2 × 22.4 × 28.1 7.00 2 × 22.4 × 7.00 28.1 B. C. D. 3. What will be the concentration of sulfate ions in mol dm–3 when 0.20 mol of KAl(SO4)2 is dissolved in water to give 100 cm3 of aqueous solution? A. B. C. D. 0.2 1.0 2.0 4.0 8809-6101 Turn over – 4 – 4. N09/4/CHEMI/HPM/ENG/TZ0/XX+ The volume of an ideal gas at 27.0
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Erin Bolton Chemistry Lab Report April 29‚ 2015 Lab: Reaction Rates Introduction: In this experiment we studied the reaction of potassium persulfate‚ K2S2O8‚ with potassium iodide‚ KI. All chemical reactions have an energy barrier to overcome before the reaction will proceed. We will record data based on the concentration‚ temperature and catalyst for each experiment. Once this has been completed it will be graphed. Procedure: Due to the chemicals being used having hazard gloves are used
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Copper is a transitional metal with an atomic number of 29. Its atomic mass is 63.546. A pure metal found in nature‚ its compounds are usually found as copper(II) salts. Copper is typically a reddish-brown with a shine or glow to it. When it is exposed to air it darkens to a brown color. If exposed to air and water‚ it becomes a blue-green. Its phase of matter is solid‚ with a melting and boiling point of 1084.62 °C and 2562 °C respectively. Copper is soft and malleable‚ meaning that it is capable
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Methodology The reagents used for this experiment were the following: * Methyl red * 0.1M Nitric Acid * 0.5M Copper sulfate – sulfuric acid mixture * 0.1M Sodium hydroxide * Acetone * Distilled water The apparatus used were the following: * Phywe Transference Number Apparatus * Analytical Balance * Buret * Beaker * pipet The experiment starts off with the preparation of the set-up for the transference vessel. Fill the double U-tube with 0.1M Nitric acid
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materials using cheesecloth. A clean‚ cotton cloth was then subjected to a series of procedures from pretreatment and mordanting down to dyeing with the rnangosteen extract. Alum and copper sulfate were used as mordants. Results revealed that the mangosteen extract was stabilized by both mordants‚ but copper sulfate was a better fixing agent than alum‚ because it intensified the color of the extract. It can be concluded that the mangosteen husk extract can
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Bindahnee Group members: Claire Lee and Carrie Gale – Rm 53 DECOMPOSITION OF COPPER CARBONATE (CuCO3) AIM – To investigate the thermal decomposition of copper carbonate. (qualitative assessment) HYPOTHESIS – The products of the decomposition of copper carbonate will be a metal oxide (CuO) and carbon dioxide gas. APPARATUS – ITEM QUANTITY/CONCENTRATION Copper carbonate 2 g Limewater (saturated Ca(OH)2 solution) 10 mL Bunsen burner Matches Test tubes 5 Retort stand
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The catalytic effect of D-block ions and the kinetics of reactions iodine clock reaction: By Stephen Parsons 6K2 Centre number: 61813 Candidate number: 8270 Table of Contents My aim and my reaction: 3 Rate of reaction: 4 Activation enthalpy: 5 Collision theory: 6 The effect of temperature on reaction rate: 7 The effect of concentration on reaction rate: 7 The effect of a catalyst on reaction rate: 8 D-block elements: 9 The effect of extra kinetic energy (from stirring etc.): 10 Where
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