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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Extraction The first stage of processing is the extraction of the cane juice. In many factories the cane is crushed in a series of large roller mills: similar to a mangle [wringer] which was used to squeeze the water out of clean washing a century ago. The sweet juice comes gushing out and the cane fiber is carried away for use in the boilers. In other factories a diffuser is used as is described for beet sugar manufacture. Either way the juice is pretty dirty: the soil from the fields‚ some small
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CHLORIDE‚ SODIUM CHLORIDE‚ SAND the wt. of mixture with evaporating dish after 1st heating is?? g. And after Its 2nd heating?? g. The method used to separate that mixtures are Filtration and Evaporation. Filtration is the process of separating the solid from the liquid by using a porous filter. And Evaporation is the process of reducing the volume of a solution. The substances that separated are the sand and the salt. What is the purpose of adding water to the residue (the solid particles that remained
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types of Mixtures? Define:-solutions -suspensions -colloids (Draw and compare.) Methods of separation 1. Filtration 2. Distillation (simple and fractional) 3. Paper chromatography 4. Solvent extraction 5. Separating funnel 6. Evaporation 7. Crystallization 8. Sublimation Draw and explain each. What is a mixture??? A mixture is a combination of two or more substances that are not chemically united and do not exist in fixed proportions to each other
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IB Chemistry Lab Report Design Example— Effect of Temperature on Solubility of Potassium Chloride in Water Research question How does temperature affect the solubility of potassium chloride in water? Hypothesis As the temperature of water increases‚ the particles of solid Potassium chloride‚ KCl‚ which are absorbing energy from its surrounding‚ start moving more easily between the solution and its solid state because. According to the second law of thermodynamics‚ the particles will
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minutes‚ then separating the solution from the solid drying agent. The solvent can then be removed by evaporation‚ leaving behind the solid neutral compound. Very often in the synthesis of a compound or in the isolation of a compound from a natural source‚ acid-base extractions are used to either directly isolate a desired acidic or basic compound or to remove acidic or basic impurities. Extraction‚ along with recrystallization and distillation‚ is one of the most important separation and purification
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Extracting NaCl from Rock Salt and assessing its purity Aim The aim of this experiment was to obtain a pure product from a solution through the processes o extraction‚ filtering and evaporation. Introduction Extraction is used when trying to separate or purify a product. For an extraction to be successful the substance used to make the solvent should readily dissolve. The substance used in this practical was rock salt. The liquid used should not react with the substance that needs extracting
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Data Sheets: Flow Chart. Data Sheets attached. Instructions followed from Lab Manual pages 49-65 7.2706 g Mixture 7.2706 g Mixture Mixture: Iron Filings‚ Sand‚ Benzoic Acid‚ NaCl Mixture: Iron Filings‚ Sand‚ Benzoic Acid‚ NaCl Extraction Extraction 2.3027 g Iron Filings 2.3027 g Iron Filings Iron Filings‚ Sand‚ Benzoic Acid‚ NaCl magnet Iron Filings‚ Sand‚ Benzoic Acid‚ NaCl magnet Decantation Decantation 1.8298 g Sand 1.8298 g Sand Sand‚ Benzoic Acid‚ NaCl Add 50 ml
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and interpretation of data obtained in the physical‚ chemical‚ and biological test. 1. Extraction and Isolation of Tannins An extraction and isolation was conducted by the researchers to determine and calculate the amount of tannins from the Otaheite Gooseberry leaves. The results are the following: Table 1 Result of the Extraction and Isolation of Tannins Weight of the sample 170.51 g Weight of evaporation dish 45.40 g Weight of the Evaporating dish + extract 73.75 g % yield weight of Tannins
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experiment‚ which in fact makes use of a number of rather advanced chemical processes. To isolate the Caffeine in a sample of tea‚ it is necessary to chemically separate the Caffeine from the rest of the tea prior to evaporation. This process is known as an extraction. An Extraction is a chemical method of separating a specific component of a solution from the rest of the solution. This is done by using a solvent (in this case Chloroform) in which the substance to be isolated is very soluble‚ while
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