Lab report on separation of mixtures Purpose- The purpose of this lab is to separate or isolate the desired product from large amounts of solvent and by-products. It is also followed by a purification step that removes trace amounts of other substances from the final product. One of the experimental techniques that we used in the lab to separate or purify mixture is fractional crystallization. In the experiment we used fractional crystallization to resolve a mixture of salicylic acid and CUSO₄ .5H₂O
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Experiment 3Quantitative Separation of Mixtures This experiment performs the quantitative separation of thecomponents of a mixture. A mixture is the mixing of two or more substancestogether. The proportions of the components in the mixture can be varied.And the resulting mixture can be either homogeneous or heterogeneous‚depending on the properties of components such as solubility.In this experiment‚ you are going to separate a water-solublecomponent from water-insoluble components
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Worksheet - Acids‚ Bases and Salts 1. I am pure water. When heated my pH (increases‚ decreases)‚ because more of my water molecules dissociate. 2. I am a 0.020 M solution of weak acid‚ HA. If I only dissociate to the extent of 1.50%‚ what is the value of my Ka? 3. I am a 0.20 M solution of hydrocyanic acid‚ HCN‚ with a Ka of 4.93 x 10¯ 10 . What is my pH? 4. I am a buffer made from 0.10 M acetic acid and 0.15 M sodium acetate. If the Ka for acetic acid is 1.77 x 10¯ 5 ‚ what is my pH? 5. I am
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DISTILLATION- SEPARATION OF A MIXTURE Ronald Ogbu‚ Alex 27th Aug. 2013 Purpose: To separate mixture of acetone and toluene using simple‚ packed and unpacked distillation columns. Results and Discussion: There were three distillation setups: simple‚ unpacked and pack fractional. All three procedures had different distillation apparatus but the unknown mixture was the same for all. The unknown liquid in a 50 ml round bottom flask was heated in a heating mantle such that a
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Aim: The aim of this experiment was to develop a technique to separate a mixture of sand‚ salt‚ iron filings‚ kerosene and water. Hypothesis: It was hypothesized that the heterogeneous mixture of salt‚ sand kerosene‚ iron fillings and water will be effectively separated. It is also predicted that there will be a decrease in each of the substances as a results of sources of error. Risk assessment: Risk | Control Measure | Glass- Fragile‚ lacerations could occur | Extra care
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1. Prepare the salt‚ sugar‚ sand‚ and measuring teaspoon. 2. Once the ice cubes are set up in their bowls‚ quickly add the substances to the ice cubes so that they don’t melt before adding the substances. 3. Place three ice cubes quickly into each of the four bowls. 4. Arrange the ice cubes so that only the corners are touching‚ forming a triangular shape. 5. Carefully sprinkle ½ teaspoon (tsp.) of salt over the ice cubes in one bowl. 6. Sprinkle ½ tsp. of sugar over the ice cubes in another bowl
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Experiment 3: Separation of the Components of a Mixture General Chemistry 101 (CHEM 101)‚ ISP SCUHS Report 2 September 15‚ 2013 Abstract Mixtures are made up of substances or components. If the mixture is fairly uniform in composition‚ properties‚ and its overall appearance‚ it is homogenous. If the component parts are clearly separated‚ it is heterogeneous. In order to identify the components in a mixture‚ methods must be used to sort out the components. However‚ the same methods will not
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Olumba Obu Unknown #: 146 Fall-11 Organic Chemistry Midterm Report 13 October 2011 Table of Contents Separation of Benzoic Acid and Acetanilide 3 Extraction and Purification of Caffeine from Tea 4 Extraction of Trimyristin from Nutmeg 5 Conversion of t-butanol to t-butyl chloride 6 Appendix 7 Calculations 8 Literature and Experimental Values of Benzoic Acid and Acetanilide 9 Experimental Caffeine IR 10 Literature Caffeine IR 11 Experimental Trimyristin
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Alvarenga Lab Partner: Keren Appiahene Mussie Gide 10 September 2016 Experiment 2: Acid- Base Extraction Separation of an Organic Acid‚ a Base and a Neutral Compound Introduction: The extraction technique is often used in the organic lab to separate organic compounds from mixtures. One type of an extraction technique is the acid-base extraction‚ which is used to separate organic compounds from a mixture based on their acid-base properties.1 There are certain principles that must be taken into account
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to do – Separating Sand & Salt Purpose: The purpose of this experiment is to separate a mixture of sand and salt. Materials: Small beaker Electric balance Sand Salt Water Graduated cylinder Stirring rod Filter paper Flask Rubber policeman Wash bottle Funnel Bunsen burner complete with rubber tubing and a source of gas Hot hands Insulator pad Ring stand complete with a ring Wire gauze Striker Pre-lab Questions: 1. Water will be useful in separating the salt and sand because salt is soluble in water
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