are of an element before it. The coefficient in a chemical formula indicates how many molecules of the formula unit‚ or chemical compound. The chemical formulas we use in this experiment are NaCl (sodium chloride/salt)‚ KCl (potassium chloride)‚ and CsCl (cesium chloride) and CaCl2 (calcium chloride). To form
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understand electrolysis‚ you need to know what an ionic substance is. Ionic substances form when a metal reacts with a non-metal. They contain charged particles called ions. For example‚ sodium chloride forms when sodium reacts with chlorine. It contains positively charged sodium ions and negatively charged chloride ions. Ionic substances can be broken down by electricity. Electrolysis is the process by which ionic substances are decomposed (broken down) into simpler substances when an electric current
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grams/ liter cesium chloride) in the appropriate columns with the corresponding g-force‚ number of layers‚ and position of layers results. Cesium Chloride grams/liter 0.5 1.5 2.0 2.5 Number of Layers 2 5 5 6 Position of LayersLittle on top rest on bottom2 near top 3 from the middle to the bottom2 near top 3 thinner layers from the middle to the bottom2 thin layers near top 1 layer below that last 3 in same position as before Explain what happens to the drag as the cesium chloride concentration increases
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In this experiment I will investigate the temperature of 50cm³ of water before and after I have added calcium chloride‚ I will gradually increase the amount of calcium chloride by 1 gram to see if there is a significant change. When Calcium Chloride is mixed with water it performs an exothermic reaction which makes new bonds between the salt (Calcium Chloride) and the water. This will therefore make the solution of the reaction increase in temperature. Exothermic reactions transfer energy
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------------------------------------------------- Hydrochloric acid From Wikipedia‚ the free encyclopedia (Redirected from Muriatic acid) Not to be confused with hydrogen chloride. Hydrochloric acid | | | | Other names[hide] * Muriatic acid[1] * Spirits of salt[2] | Identifiers | CAS number | 7647-01-0 | ChemSpider | 10633809 | UNII | QTT17582CB | EC number | 231-595-7 | ChEMBL | CHEMBL1231821 | ATC code | A09AB03‚B05XA13 | Properties | Appearance | Colourless
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are too small to see‚ but you can taste them. While table sugar is made up of sucrose molecules (remember covalent compounds from chemistry?)‚ table salt (sodium chloride) is a very different kind of chemical compound‚ an ionic compound. It is made up of two smaller particles‚ a sodium ion and a chlorine ion. Sodium chloride can be made in the laboratory (don’t try this at home!) by
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etc. iii. Solute. iv. Filtrate. v. Residue. vi. Immiscible and miscible liquids. vii. Distillate. viii. Sublimation i.e. examples of substances that sublime – iodine‚ ammonium salts‚ iron (III) chloride‚ aluminium chloride‚ etc. ix. Melting and boiling points. x. Chromatography. TEACHING/LEARNING MATERIALS: •
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excess. At the second part‚ student needs to measure the pH of different solution by using universal indicator paper and determine whether each solution is acidic‚ basic or neutral. Lastly‚ the precipitation reaction is observed by using phosphates‚ chlorides and silver halides groups. AIMS The main objective of this experiment was to identify certain inorganic reaction types and the differences in solubility of silver halides. Thus‚ a series of inorganic reactions was carried out as an introduction
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column making sure it did not dry. The yellow band was collected in the first watch glass. Once all of the yellow band had eluted‚ the watch glasses were switched and when the heptane level reached the top of the sand‚ we switched to MTBE (methyl t-butyl ether). The MTBE was continued to be added to the column to elute the orange band. Both of the watch glasses were placed in a fume hood where the solvent was allowed to evaporate‚ afterwards‚ the watch glasses were weighed again. A developing
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02 4/02/2013 Abstract A sample of soil was tested for possible contaminants and other information using a variety of techniques including moisture analysis‚ pH measurement‚ acid-base titration‚ chloride-ion electrode analysis‚ and flame testing. The sample had a greater concentration of chloride ions‚ no measurable CaCo3 ‚ and lower than standard moisture content. It was contaminated with KCl and likely HCl ionic solids. Introduction Soil is a vital component of any environmental network
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