the solid copper(II) nitrate is used to dissolve in a test tube filled with half distilled water. The solid copper(II) nitrate ionize in water to form copper(II) ions and nitrate ion. Hence‚ a blue solution is formed due to the blue copper(II) ion present in the solution. When excess solid is added‚ the solution will become saturated and do not allow any solid to dissolve‚ so excess solid will remain in the solution. This is shows that the equilibrium between solid and aqueous copper(II) nitrate
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1. “The energy for life comes from the sun.” Outline the role of the photosynthesis process to explain what is meant by this statement. (3 marks) chlorophyll 6CO2(g) + 6H2O(l) + energy C6 H12 O6 (aq) + 6O2(g) 2830 kJ glucose Photosynthesis is the process in which plants use the sun’s light energy to convert carbon dioxide and water into carbohydrates such as glucose‚ sucrose‚ starch and cellulose. Carbohydrates are high energy
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COPPER KETTLE CATERING Question 1. Are the operations of Cooper Kettle Catering conducive to the application of JIT concepts and practices? The Williams’ can efficiently manage the deliver-only process by Purchase Automated Machines to prepare food & Box meals - Staff reduces Automated Machines to prepare food & Box meals - Staff reduces Purchase 1 food preparation employee working the machines‚ food preparation employee working the machines‚ 2 1cooks 2 cooks Substantially Increase Savings
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LAB REPORT 5 – ACID/BASE CHEMISTRY No credit will be given for this lab report if the Data section is not completely filled out and if the required photographs are not received. At least one photograph must show the student’s face. NOTE: This experiment is rather lengthy. Plan accordingly. OBJECTIVES 1. Define strong electrolyte‚ weak electrolyte‚ nonelectrolyte‚ acid‚ base‚ salt‚ strong acid‚ weak acid‚ strong base‚ weak base‚ and neutralization reaction. 2. Compare and contrast the chemical
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Chemistry 12 Unit 1 - Reaction Kinetics Chemistry 12 Worksheet 1-3 - Reaction Mechanisms 1. It is known that compounds called chlorofluorocarbons (C.F.C.s) (eg. CFCl3) will break up in the presence of ultraviolet radiation‚ such as found in the upper atmosphere‚ forming single chlorine atoms: CFCl3 CFCl2 + Cl The Cl atoms then react with Ozone (O3) as outlined in the following mechanism. Step 1: Step 2: Cl + O3 ClO + O2 ClO + O Cl + O2 (single "O" atoms occur naturally in the atmosphere
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contribute benefit to humankind. As time goes on‚ human has done many researches to ensure all these chemical substances will be enough for the use of themselves. 2 Chapter 9 of Form 4 syllabus introduces the students with manufactured substances in industry. This is important for the students to appreciate the knowledge of chemistry that is still new for themselves. Personally‚ I think that this chapter is an interesting chapter as it revealed the way of scientist produces the material around
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Hydrometallurgy j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / l o c a t e / h yd r o m e t Treatment of copper flash smelter flue dusts for copper and zinc extraction and arsenic stabilization A. Morales a‚ M. Cruells b‚ A. Roca b‚⁎‚ R. Bergó b a b Universidad Católica del Norte‚ Department of Metallurgical Engineering‚ Antofagasta‚ Chile Universitat de Barcelona‚ Department of Materials Science and Metallurgical Engineering‚ Faculty Chemistry‚ Barcelona‚ Spain a r t i c l e i n f o Article
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colour NaCl(s) Yellow NaCl Red-Orange NaNO3 Dark Orange LiNO3 Red Sr(NO3)2 Dark Red KNO3 Blue-Indigo Ba(NO3)2 Yellow-Green Cu(NO3)2 Green Ca(NO3)2 Red-Orange Ni(NO3)2 Yellow-Green Materials: Nichrome test wire Bunsen Burner 150 mm test tubes (14) 6.0 mol/L HCl Solid NaCl 0.50 mol/L NaCl 0.50 mol/L NaNO3 0.50 mol/L LiNO3 0.50 mol/L Sr(NO3)2 0.50 mol/L KNO3 0.50 mol/L Ba(NO3)2 0.50 mol/L Cu(NO3)2 0.50 mol/L Ca(NO3)2 0.50
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A COMPARISON OF ALUMINUM VS. COPPER AS USED IN ELECTRICAL EQUIPMENT Larry Pryor‚ P.E. – Sr. Specification Engineer‚ GE Consumer & Industrial Rick Schlobohm‚ P.E. – Sr. Specification Engineer‚ GE Consumer & Industrial Bill Brownell‚ P.E – Specification Engineer‚ GE Consumer & Industrial ABSTRACT The debate over the pros and cons of aluminum vs. copper conductors has been discussed for many years. Many of the concerns are based on old information and also misinformation. These concerns center on the
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Identification of a Copper Compound by Percent Mass Unknown Compound: #9 Abstract: The objective of this experiment was to identify the unknown pure copper salt compound of #9. To do this‚ the mass of copper in the unknown was calculated and then divided by the mass of the whole compound to get the percent copper. The molecular weight was also calculated by dividing mass of copper compound used by moles of compound in unknown sample. The percent copper averaged out to 31.6% while the molecular
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