Supercritical Carbon Dioxide as a Green Solvent Gregory Absillis June 2009 The majority of chemical processes in chemical synthesis are carried out in solution and organic solvents usually are the first choice. To satisfy this demand‚ 15 billion kilograms of organic are produced worldwide each year. [1] These solvents often bear considerable risk due to their toxicity‚ flammability or environmental hazards. Furthermore‚ they have to be separated from the products and recycled or disposed at
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Investigating pH Aim: To demonstrate dissolved carbon dioxide changing the ph level of substances. Materials: * 2 beakers * 2 straws * Stop watch * Distilled water * Lime water * Litmus Paper Method: 1. Pour 100ml of Distilled water into the first beaker‚ and label said beaker. 2. Pour 100ml of Lime water into the second‚ also Label beaker. 3. Test the two liquids with litmus paper and note the ph level‚ before any carbon dioxide has been introduced. 4. Place a straw in each
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of Paris (POP) is mainly the compound of gypsum‚ sulphur‚ phosphorus and magnesium. Chemical paints comprise of mercury‚ cadmium‚ lead and carbon. Immersion of idols with such poisonous and toxic elements raises the level of acidity‚ solid matter‚ organic matter and heavy metals in water bodies. These materials don’t dissolve readily and lowers the oxygen level in water adversely affecting the aquatic life. In order to come out of such problems and enjoy festival with the same spirit‚ devotees
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not enough‚ what about night time when there is no sunlight? It is definitely not enough‚ as the rate is lower. Effect of this would be lacking of energy due to insufficient food supply‚ causing it to be difficult for us to perform daily activities at night. Although the process of photosynthesis is quite fast‚ it isn’t fast or high enough to keep up with the rate of energy required during activities for human. Adding to that‚ an important component in photosynthesis is carbon dioxide‚ without carbon
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Water on Carbon Dioxide Levels Problem: How does varying the type of organism (plant or animal) in the level affect the level of carbon dioxide? Background: This lab is used to test the effect the respiration rates in plants in animals and how it affects the level of carbon dioxide present in the water. Oxygen and carbon dioxide are gases that are vital to all organisms‚ whether it is given or released through that organism. Both plants and animals use oxygen and carbon dioxide for cellular
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Deforestation The “Slashing and burning” of rainforests has to stop. The deforestation of our rainforests is effecting our environment and us more than you may think. We get the oxygen we need from trees‚ forests protect us from Carbon Dioxide‚ and forests protect most of Earth’s plants and animals. We need trees to breathe and rainforests to protect us from harsh things that we emit from our bodies. Many rainforests help and protect us. “More than 20% of the world’s oxygen comes from the Amazon”
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April 8‚ 2012 Dear Senator Greg Ball‚ The current practice of hydraulic fracturing (fracking) began in America in the late 1990‘s and has been wreaking havoc on the land and the lives of the American people since. In case you are unaware‚ fracking is the process well diggers use to extract natural gas and oil from the earth. They use pressurized mixture of water‚ sand‚ and chemicals to form veins (or fractures) in the rock in order for the natural gas or oil to escape. Although this process
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expand.Adding the lemon juice to the baking soda creates a chemical reaction. The baking soda is a base‚ while the lemon juice is an acid‚ when the two combine they create carbon dioxide (CO2). The gas rises up and escapes through the soft drink bottle‚ it doesn’t however escape the balloon‚ pushing it outwards and blowing it up. What happen when I tested the experiment was me and my mommy had test it out and I found that two of my ingredients did not work and two did work. The one that did not work
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Blog resource: http://tinyurl.com/2924a5l Click4Biology: http://tinyurl.com/2g2cn8e Cite all sources using the CSE method (or ISO 690 Numerical in Word). The first example has been done for you. Highlight all objective 1 command terms in yellow and complete these before class. Highlight all objective 2 and 3 command terms in green – these will be part of the discussions in class. After class‚ go back and review them. Complete the self-assessment rubric before submitting to
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molar mass of chosen compound Marta Dürrigl 1mmA Chemical reaction: b.) CaCO3 (s) + 2HCl (aq) ----------- CaCl2 (aq) + CO2 (g) + H2O(l) AIM: The aim of this investigation is to experimentally determine the molar mass of carbon dioxide (CO2) by measuring its volume and calculating its mass. CO2 which we will measure will arise as a product of a chemical reaction between Calcium Carbonate (CaCO3) and Hydrochloric acid (HCl) as it is shown in the chemical equation above. Once
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