Assignment Purification of a Mixture INTRODUCTION Mixtures obtained from the biosphere‚ lithosphere‚ hydrosphere or atmosphere can be industrially separated into their constituents. Petrol for example is obtained from crude oil found in the lithosphere. RESEARCH SKILLS When researching this assignment you will access a variety of secondary resources including web sites and textbooks. Please include a detailed bibliography You should also consider both the validity and reliability of your
Free Mixture Separation process Distillation
turesRule of Mixtures Composite stiffness can be predicted using a micro-mechanics approach termed the rule of mixtures. Assumptions 1. 2. 3. 4. 5. 6. Fibers are uniformly distributed throughout the matrix. Perfect bonding between fibers and matrix. Matrix is free of voids. Applied loads are either parallel or normal to the fiber direction. Lamina is initially in a stress-free state (no residual stresses). Fiber and matrix behave as linearly elastic materials. Longitudinal Modulus Equal strain
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Analysis of an Unknown Mixture Performed: 2/13/14 Submitted: 3/3/14 Abstract: The purpose of this experiment was to separate and identify the two unknown compounds. The sample used was 105 and it contain 2-propanol and 2-heptanone. IR spectrums were taken of the contents of the second and sixth test tubes and showed the presence of an OH functional group and a small amount of ketone in test tube two and a large presence of ketone in test tube six. The average boiling points of the test tubes
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Spectrophotometric Determination of an Equilibrium Constant Introduction: In this experiment‚ you will study the reaction between aqueous iron (III) nitrate‚ Fe(NO3)3‚ and potassium thiocyanate‚ KSCN. They react to produce the blood-red complex [Fe(SCN)]2+. Fe3+ + SCN- ( [Fe(SCN)]2+ The equilibrium constant expression may be expressed as: K = [pic] You will prepare a series of standard solutions that contain known concentrations of [Fe(SCN)]2+ and will determine
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If only they knew what was in the mystery mixture. After a long time of experimenting‚ the 8th grade scientist came to a decision on how they are going to figure what is in the mystery mixture. Once they started‚ they all looked at its physical properties. Then the scientists thought about the chemical reactions‚ and how that will help the claim the scientists had. More than half of the scientists thought it was baking soda and citric acid. When combining baking soda and citric acid together‚ the
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Abstract By separating chemicals out of a mixture and purifying them through sublimation and recrystiliation‚ changes in the substances physical properties can be shown. A salicylic acid-naphthalene mixture was mixed together with diethyl ether and saturated sodium bicarbonate. Two layers separated and were extracted after acidifying with HCl. This precipitated the crude salicylic acid. The left over mixture was combined with water and the two layers separated where crude naphthalene was recovered
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The compound is the substance that can be two or more elements that can be changed. Water is a compound. It contains both Hydrogen and oxygen that can stand alone by itself. The mixture is when two different substances that are blended together. The air is a mixture of these elements carbon dioxide‚ nitrogen‚ and other stuff. Most mixtures are known to be naturally. The main difference between the compound and the mixture is how they are combined. In the pure substance‚ the only way to know if
Free Atom Chemical bond Electron
DATE PERFORMED: JULY 20‚ 2007 SPECTROPHOTOMETRIC DETERMINATION OF EQUILIBRIUM CONSTANT FOR A REACTION ABSTRACT UV-VIS spectrophotometry is one of the most widely-used methods for determining and identifying many inorganic species. During this experiment‚ this spectrophotometry was used to determine the equilibrium constant‚ Keq‚ of the Fe3+(aq)+SCN-(aq)↔ FeSCN2+(aq) reaction. By determining the amount of light absorbed‚ the concentration of the colored FeSCN2+ solution was also quantitatively
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to the concept of Mixture Ginataang Adobong Manok sa Piña with cheese and chili is a healthy and fine delicacy that contains variety of mixtures. In terms of the food as a whole‚ it is considered as a suspension. It is a heterogeneous mixture of a solid and a liquid wherein the solid‚ which is the chicken‚ does not dissolve in the liquid which is the sauce. In terms of its sauce‚ it could be considered as a colloid mixture because it has a cloudy appearance containing a mixture of the soy sauce‚
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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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