Theory: In the production of biodiesel from cooking oils (glycerides) and methanol are combined with sodium hydroxide as a catalyst. This causes the oils to break apart and reaction of the oils with the methanol. As seen in Figure 1‚ this produces biodiesel (in the form of esters) and glycerol. Figure 1: The production of biodiesel (esters) from glyceride (cooking oils) and an alcohol (methanol). In combustion‚ a substance can be completely or incompletely combusted. In complete combustion‚
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+ HCl Cl- + NaOH Na+ + H2O Cl- + NaOH + NaCl + H2O Na+ + HCl + NaCl E. Physical Contents – | M.W. (g/mol) | M.P. (oC) | B.P. (oC) | Density (g/mL) | 4-Nitroaniline | 138.12 | 146-149 | 260 | 1.40 | Azobenzene | 182.22 | 65-68 | 293 | 1.09 | Benzoic Acid | 122.12 | 121-125 | 249 | 1.30 | Methylene Chloride | 84.93 | -97 | 39.8-40 | 1.32 | G. Procedure – The
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Introduction In a chromatographic separation process‚ different kinds of functional groups and number of functional groups of molecules will determine the separation. Depending on what kind of solute‚ solvent‚ and adsorbent used‚ molecules will experience the interaction during dynamic equilibrium. On a TLC plate‚ capillary tube is used to transfer o- and p- hydroxyacetopheone‚ taking advantage of capillary force to make small spotting. A 30:70 ether acetate: petroleum ether is used as a solvent
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Written report discussing the purity of my aspirin sample I produced. When I carried out the experiment to produce an aspirin sample I had to take a few results I had gained from carrying out the experiment later used these to work out the experimental error and percentage % yield. The results I used where the published value of what temperature pure aspirin melts at‚ the temperature my aspirin sample melted at‚ the weight of pure aspirin and the weight of impure aspirin. Firstly I worked out
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Less than Lethal Weapons by Clayton Moss Less than lethal weapons were developed to provide law enforcement‚ corrections‚ and military personnel with an alternative to lethal force. The term less lethal weapons refers to weapons such as bean bag shotshells‚ rubber bullets‚ and electronic stun devices to name a few. They are designed to temporarily incapacitate‚ confuse‚ delay‚ or restrain a suspect in a variety of situations. They have been used primarily in on-the-street confrontations and suicide
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this study set out with the purpose of investigating the influence of job stress on sickness and absence of nurses and to determine the predictive power of the Demand-Control-Support or DCS model‚ and the Effort-Reward-Imbalance–Over Commitment or ERI-OC. Over the years nursing demand have grown‚ as the population grows‚ so does it populous of sick or ill population. Tasked with the daunting and never ending task of being at the front line are nurses and hospital staff. This Particular study used a
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Mark Scheme PEKA Chemistry Form 5 Experiment No : ......4.1............ Topic: Thermochemistry Aim To determine the heat of combustion for alcohols Problem statement Does alcohol with a higher number of carbon atoms per molecule have a higher heat of combustion? [ K1PP1(i) - Able to write the aim or problem statement correctly] Hypothesis The higher the number of carbon atoms in the alcohol molecules‚ the higher is the heat of
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PHYSICAL CHEMISTRY LABORATORY REPORT (CHE 414L) Department of Chemical Engineering School of Engineering and Architecture Saint Louis University Group No. 12 Members: DEMOT‚ Judy Ann SOMERA‚ Randolf P. TIPAYNO‚ Samantha TORZAR‚ Precious Imee I. Signatures: ____________________ ____________________ ____________________ ____________________ Title: Determination of Molecular Weight of a Volatile Liquid By Vaporization: Dumas Method Background of the Study Problem In this experiment‚ an unknown liquid
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PRODUCTS OF COMBUSTION OF GASEOUS FUELS AND CALCULATED FLAME TEMPERATURE Gheorghe CAUNEI FLORESCU1‚ Lt. Eng. Constantin NISTOR‚ PhD. Student2‚ Associate Professor Amado George STEFAN2 1 GENERAL DIRECTORATE NATIONAL SYSTEM HAIL - MINISTRY OF AGRICULTURE AND RURAL DEVELOPMENT‚ 2 MILITARY TECHNICAL ACADEMY Abstract. The work contains elements of combustion stoichiometry. It defines the ratio of the mass of the fuel mc and air mass ma‚ called fuel-air dose‚ d. Commercial liquid fuels for
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