Coriander Powder Coriander or sometimes known as cilantro‚ is natively found in areas in Southwestern Asia‚ Africa‚ the Middle East and Southern Europe. Historical documents show that Egyptians were actually the first people to cultivate and harvest this spice. Coriander is heavily used in India‚ where it is used in various vegetable dishes‚ curries and often consumed roasted as a snack or after meal digestive. South African and German cuisines often use coriander powder in sausages‚ bread and
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mystery powder based on its physical and chemical properties. Hypothesis The physical properties of each powder can help identify what the mystery powder is‚ but the chemical properties will determine the answer. Safety * Wear safety glasses. * Do not taste any substance in this experiment * Iodine solution and some powders are hazardous. * Wash hands when you have finished. Materials * Eye protection * Well plate * 6 small toothpicks for stirring each powder *
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Experiment 1: Synthesis of Copper Compounds Introduction This experiment involves the synthesis of compounds originating from pure solid copper. By applying solubility rules and the reactive properties of substances‚ many compounds which would otherwise be costly to extract from nature are able to be synthesized in the laboratory. Laboratory synthesized may sometimes be more economical than natural extraction‚ however it poses its own problems with the amount of substance that is actually yielded
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LET’S START WITH COPPER CHEMISTRY REPORT 2012 INTRODUCTION: The law of conservation of mass means that the atoms of an object cannot be created or destroyed‚ but can be moved around and be changed into different particles. This law says that when a chemical reaction makes two different atoms into a new product‚ the mass will be the same. Knowing this the mass of the copper should be the same at the beginning and at the end of the experiment. In this investigation we will see
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Introduction of Lab 5: Analysis of a Zinc: Aluminum Alloy The analysis of a metal alloy was designed to learn how to use the Ideal Gas Law (formulas listed below) in a laboratory setting in relevance to acquiring moles of gas created‚ thus giving us one step closer to finding the molar mass. The importance of the Ideal Gas Law‚ as well as the other gas laws‚ is that it signifies the relationship between the properties of an ideal gas. These properties assist in the explanation of the Kinetic Molecular
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EXTRACTION OF COPPER FROM OXIDISED COPPER ORE Aim: To analyse how copper is obtained from oxidised copper ore using the processes of leaching‚ solid-liquid separation‚ displacing and electrowinning. Method: Refer to ‘Extraction of Copper from oxidised Copper Ore’ document pages 1-2 Results: Leaching: The blue particles in the copper ore which is copper was dissolved in the sulphuric acid and the solution turned into a blue colour. There was also sediment that was floating around
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Introduction Detergent is a material intended to assist cleaning. The term is sometimes used to differentiate between soap and other surfactants used for cleaning. The term detergent by itself is sometimes used to refer specifically to clothing detergent‚ as opposed to hand soap or other types of cleaning agents. Bangladesh has a detergent market of about 8.8 billion taka of which Unilever occupies a share of 48% making it the market leader. The major competitor brands in the detergent market for
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molecular formula of Copper Oxide through synthesis of copper oxide. In the first procedure‚ an empty crucible‚ Bunsen Burner‚ and electronic scale were placed onto the workbench. The electronic scale was zeroed before the crucible was placed on it. The total mass of the empty crucible was 88.000g. Afterwards‚ 10 grams of copper powder was placed into the crucible and weighed to be 98.000 g. The crucible with the copper was placed onto the Bunsen Burner. The initial color of the copper was red. The Bunsen
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To investigate how does the concentration of Hydrochloric acid affect the rate of reaction? Outline I aim to discover how different concentrations of Hydrochloric acid influence the rates of reaction. In order to carry out this investigation I have decided to use marble chips‚ which I will vary the sizes as powder‚ small chips and large chips. I will also be changing the concentration‚ the different concentrations are as follows 0.2m‚ 0.5m‚ 1m‚ 1.5‚ 2m. I have chosen these concentrations as they
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range the metals copper‚ lead‚ silver and zinc together with hydrogen. Start with the strongest reducing agent. Hypothesis: The nobler a metal is‚ the worse reducing agent. Apparatus/requirements: Sandpaper‚ strips of; zinc‚ lead‚ silver and copper‚ solutions containing aqueous; Zn2+‚ Pb2+‚ Cu2+ and Ag+ ions (0.2 M)‚ hydrochloric acid (5.0 M)‚ emery paper‚ test-tubes. Method: Burnish the three metal strips to get a shiny surface‚ after drop a drop of each of the metal ion solutions on the cleaned
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