PURPOSE The purpose of this experiment is to become familiar with the separation of mixtures of solid and learn separation techniques based on the chemical properties of a substance. PROCEDURES 1. Separating out the Iron a. Use your digital scale to determine the mass of your weighing dish. b. Empty the entire mixture of solids from the plastic bag into the weighing dish and determine the gross mass of the total mixture and weighing dish. Compute the net mass of the mixture: this is equal
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CHEMICAL WASTE MANAGEMENT IN DEVELOPING COUNTRIES INTRODUCTION Chemical waste is managed in various ways‚ some which are environment friendly and some which are hazardous. It has effects on water supply‚ fertility of the soil‚ climate‚ health of individuals‚ et.c. What really matters is how well this waste is managed. Chemical waste management typically includes the collection‚ transportation‚ processing and recycling/disposal of chemical waste. In past times‚ it was the role of the country to
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LS Separation of Mixtures and Solids Purpose: To become familiar with the separation of mixtures of solids Hypothesis: I will be able to separate the materials using a variety of different methods. First‚ separate the iron fillings using a magnet. Second‚ I will put the rest of the solution into water and separate the insoluble sand from the soluble salt and benzoic acid. Third‚ I will filter out the benzoic acid when crystalized. Lastly‚ I will evaporate the water away leaving crystallized
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what our grandmas always used to tell us: Do not waste food; think of all the hungry children in Africa. At my recent TEDx talk‚ I mentioned that global food waste could feed every starving child‚ man and woman on this planet – three times over in fact! Here is some food for thought: A global shame Globally‚ human beings produce enough food waste to feed 3 billion people: over 30% of the world’s food supply is wasted. The annual food waste in Italy could feed 44 million people – all of Ethiopia’s
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Proposal on the Disposal of Old Computers Arnel Lorenzo CIS/290 April 1‚ 2013 Eileen Broadhurst Proposal on the Disposal of Old Computers In preparation for the replacement our old computers with new ones here in our company I strongly suggests that all obsolete and non-working machines be recycled and must be disposed of properly according to the U.S. Environmental Protection Agency (EPA ) Standards of Recycling in order not to destroy the environment from its hazardous components
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A solid argument consists of a claim‚ reasons/evidence and conclusion. “Reasons are beliefs‚ evidence‚ metaphors‚ analogies‚ and other statements offered to support or justify conclusions. When a writer has a conclusion she wants you to accept‚ she must present reasons to persuade you that she is right and show you why. You cannot determine the worth of a conclusion until you identify the reasons” (Browne & Keeley‚ 2012‚ p.28). Absent reasons or conclusion the argument is weak‚ unclear‚ pointless
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PRE-FEASIBILITY STUDY OF THE BIODIESEL PRODUCTION PLANT FROM WASTE COOKING OIL USING SOLID CATALYST CaO/SrO/ZnO Bachelor Degree in Chemical Engineering Department of Chemical Engineering ‚ Faculty of Engineering ‚ Kasetsart University Abstract The objective of pre-feasibility study of the biodiesel production from waste cooking oil using solid catalyst (CaO/SrO/ZnO) is to study and design biodiesel process because the advantages of heterogeneous catalyst are reuseable and less amount of
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AEffects of abortion on mental health The only terms used by the scientific community to refer to psychological pain of abortion are those associated with anxiety‚ depression or some corollaries of Post Traumatic Stress Disorder. Indeed‚ testing protocols and treatment of PTSD can be used only if the symptoms provide clear manifestations in a period close to the event. However‚ the manifestation of suffering of abortion is often part time‚ or even cannot come to the surface at the approach of
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pressure. Introduction Molar mass or gram molar mass is the mass of the substance under consideration without distinguishing whether a substance is an element ‚ a molecule or an ionic compound. These elements‚ molecules or ionic compound could be solid gas or liquid. The molar mass of gas or vapor could be measured if the gases obey the law of Ideal Gas . The mass of the gas is found under known temperature and pressure. Method/procedure To measure the unknown volatile liquid molar mass‚ the formal
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The disposal of nuclear waste is quickly becoming the most important issue facing the environmental community today. Nearly twenty percent of our nation’s electricity is being supplied by approximately 100 nuclear power plants that are operating in the United States. Currently‚ most of the nuclear waste created by these power plants is being housed temporarily in storage facilities and although the total amount of nuclear waste produced in one year is small‚ the need to find a permanent method
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