MIXTURES‚ SOLUTIONS‚ SUSPENSIONS AND COLLOIDS MIXTURES A mixture is a combination made up of two or more different substances which are mixed but are not chemically bonded. There are also types of mixtures such as homogeneous mixtures and heterogeneous mixtures. SOLUTIONS A solution is defined as a homogeneous mixture composed of a solute; a substance dissolved into another substance known as a solvent. They can also be defined as groups of molecules that are mixed up completely in even
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Experiment 1: Mixtures Aim: To develop an understanding of different types of mixtures including solutions and to examine the different solubilities of some solutes in two solvents: water and ethanol Procedure: Refer to Experiments Book Pg 13 Results: Part A- Mixture Observations Classifications 1 100% Orange Juice There were suspended pulp in the juice Heterogeneous Mixture 2 100% Apple Juice Clear solution Homogeneous Mixture 3 Solder Uniform mixture Homogeneous Mixture 4 Fruit Cake Chunks
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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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Determining substances contained in a mixture using qualitative analysis Introduction: The purpose of this lab was to determine the substances contained in a random mixture using qualitative analysis. Qualitative analysis is the analysis of a substance in order to ascertain the nature of its chemical constituents (Qualitative analysis). The substances that could be found were iron‚ cinnamon‚ corn starch‚ baby powder‚ copper‚ and strontium. A magnetism test was used to determine whether iron or
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151-50 Fall 2013 Lab report Isolating the Components of a Three Component Mixture The purpose of this experiment was to separate the component of three mixtures sand‚ sodium chloride and calcium carbonate then calculate the percentage by mass of each component recovered from the mixture. The other purpose of this experiment was to show us the students the concepts associated with physical and chemical properties of substances. Me and my lab partner‚ obtained a mixture of a un known proportion
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Theory: Distillation is the conversion of a mixture of substance into vapors which is afterwards condensed to the liquid form. It cans separation or purification of substances by taking advantage of differences in volatility. The purpose of this lab is comparing the efficiency of two distillation methods with the mixture of ethanol and 1-butanol. in theory the fractional distillation should be more efficient because of the steel sponge. The sponge acted as surface area for gas to condense on. This
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Separation Anxiety Disorder Separation Anxiety Disorder is prolonged‚ developmentally inappropriate‚ excessive anxiety‚ and distress in a child concerning removal from parents‚ home‚ or familiar surroundings. ("Free Dictionary By Farlex") This papers purpose is to inform the reader of the symptoms and tips on how this Disorder can be fixed. Separation Anxiety Disorder V.S. Separation Anxiety Many young children suffer from suffer from Separation Anxiety‚ Separation
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themselves. This is what is known as the theory of separation of powers. Montesquieu‚ the celebrated French Scholar asserted that concentrated power is dangerous and leads to despotism of government. As a check against this danger he suggested to separate the functions of executive‚ legislature and the judiciary so that one may operate as a balance against the other. However Montesquieu was not the first scholar to develop the theory of separations of powers. Its origin can be traced back to Aristotle
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Chapter Objectives Understand how to measure the stress and strain through experiments Correlate the behavior of some engineering materials to the stress-strain diagram. Copyright © 2011 Pearson Education South Asia Pte Ltd In-class Activities 1. 2. 3. 4. 5. 6. 7. Reading Quiz Applications Stress-Strain diagram Strength parameters Poisson’s ratio Shear Stress-strain diagram Concept Quiz Copyright © 2011 Pearson Education South Asia Pte Ltd TENSION AND COMPRESSION TEST Copyright
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Chapter Objectives To determine the deformation of axially loaded members. To determine the support reactions when these reactions cannot be determined solely from the equations of equilibrium. To analyze the effects of thermal stresses. Copyright © 2011 Pearson Education South Asia Pte Ltd In-class Activities 1. 2. 3. 4. 5. 6. 7. 8. 9. Reading Quiz Applications Elastic deformation in axially loaded member Principle of superposition Compatibility conditions ‘Force method’ of analysis
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