organic compounds (such as benzoic acid) are very soluble in organic solvents‚ a hexane: ethanol mixture was used to dissolve the acid. Also‚ because it is known that sodium chloride dissolves in water‚ water was used to dissolve the NaCl. Along with separating the components of a heterogeneous mixture‚ the percent recovery of each substance was calculated using the formula: % recovery = (final mass)/(inital mass) x 100. The percent recovery is the amount of substance that was recovered from before the
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Separating a Mixture Aim: To separate the components of a mixture of sand and salt. To carry out a gravimetric analysis to calculate the percentage of both components. Equipment: * Electronic Scale | * Evaporating Basin | * Beaker | * Bunsen Burner | * Glass Stirring Rod | * Filter Funnel | * Wire Gauze Mat | * Filter Paper | * Heat Resistant Mat | * Conical Flask | * Safety Glasses | * Tripod | * Matches | Tongs | Risk Assessment:
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To: Aron Huckaba From: Peyton Lewis Date: 9/20/12 Subject: Experiment 3: “Identifying a Constituent of Panacetin” Partner: Julie Covington Introduction This experiment was a continuation of Experiment two‚ with a slightly different question to be answered. In this experiment‚ we are trying to find the identitiy of the unknown component of Panacetin. This is answering question 2 of the two questions that were to be answered in experiment 2. The equation of this reaction is as follows (and
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Separating the components of a Ternary Mixture Introduction Mixtures are usually content of two or more substances. There are two kind of mixtures‚ Homogeneous and heterogeneous mixtures. For Homogeneous mixture we cannot see the individual particles of the components‚ a good example of that will be air‚ cola drink‚ and rubbing alcohol. And for heterogeneous mixture we can see the individual particles of the components‚ a good example of that will be rocks and soil. There are a variety of methods
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CHM 266 Section 4 Experiment#: PROP0375 Separating the Components of a Ternary Mixture Hassan Alhammad 2554122 T.A Katherine Turner 9/11/2014 Introduction The purpose of the experiment is to separate components of mixture of sand (SiO2)‚ salt (NaCl)‚ and chalk (CaCO3). 1. CaCO3+2HCl-----CaCl2+CO2+H2O 2. CaCl2+K2CO3====CaCO3+2KCl The first reaction shows the separation of calcium carbonate from the mixture. In the second reaction we use the product of the first reaction (CaCl2)
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Chemistry assignment: The mixture selected in this assignment is seawater obtained from the hydrosphere. The seawater can be separated through out several processes‚ both chemically and physically. The separation process is known as desalination. This name is getting more common everyday‚ as the Australian water demand grows with population we can no longer ignore the salinity problem. Desalination process could take use of the salt concentrated water‚ turning them into fresh water. Industrial
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Separating the Sexes‚ Just for the Tough Years 1. The middle school years (grades 7 and 8) are known to be the “tough years”. These are the years when the uneven pace of girls’ and boys’ physical‚ emotional‚ and cognitive development is most noticeable. Girls are ahead of boys on all counts‚ and both suffer. Educators debate whether separating boys and girls during these difficult years might improve students’ academic performance. Separate Classes are now prohibited in public schools that receive
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Separating a Mixture of Compounds Exp. No. 2 name Chemistry 145 February 2‚ 2014 I. Purpose The purpose of this experiment was to separate this mixture into components‚ determine the mass and percentage of each component. In addition to test the accuracy of an alternative method of subtraction to find the mass of the sodium chloride directly. Start with a mixture of sand (SiO2)‚ sodium chloride (NaCl)‚ and ammonium chloride (NH4Cl)‚ and use these separation processes: sublimation filtration
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Summary Purpose To purify the component (unknown) of Pancetin from last experiment and then compare its melt point to the two other possible substances. Theory Panacetin should be made up of about 50 percent of the unknown component that we previously separated out of Panacetin for testing. We suspect that this unknown compound is either acetanilide or phenacetin. From the solubility of acetaminophen and phenacetin‚ we could know both of them are relatively soluble in boiling water but insoluble
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Separating Sexes‚ Just for Tough Years The middle school years (grades 7 and 8) are known to be the tough years. These are the years when the uneven pace of girls’ and boys’ physical‚ cognitive and emotional development is most noticeable. Girls are ahead of boys on all counts‚ and both suffer. Educators debate whether separating boys and girls during these difficult years might improve students’ academic performance. Separate classes are now prohibited in public schools that receive federal funds
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