Sulfate that would confirm our compound and show its chemical properties. In each reaction‚ we replaced the presence of Sodium Sulfate with our unknown. Our first reaction was the reaction from the sulfate anion test between Sodium Sulfate and Barium Chloride. If the compound was in fact Sodium Sulfate it would produce a white precipitate and it did. The second reaction was first between Sodium Sulfate and Hydrochloric Acid‚ and then Silver Nitrate was added. For the compound to be confirmed‚ a white
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Report Assistant section. This experiment will create a reaction of sodium carbonate and calcium chloride dihydrate to produce a precipitate of calcium carbonate. This formula is: Na2CO3(aq) + CaCl2. 2H2O(aq) à CaCO3(s) + 2NaCl(aq) + 2H2O 1. Put on your goggles. 2. Weigh out 1.0 g of CaCl2·2H2O and put it into the 100-mL beaker. Add 25 mL of distilled water and stir to form the calcium chloride solution. Use only distilled water since tap water may have impurities that interfere with the experiment
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the separation of calcium carbonate from the mixture. In the second reaction we use the product of the first reaction (CaCl2) and change it back to calcium carbonate (CaCO3) by mixing CaCl2 with potassium chloride (2KCl). Objective To separate the components of mixture of sand‚ sodium chloride and calcium carbonate. Materials and Equipment 1. Two beakers 2. Experimental mixtures 3. Distilled water 4. Funnel 5. Filter paper 6. Evaporating dish 7. Buchner funnel 8. Weighing machine 9. Conical flask
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dioxide + oxygen sulfur trioxide 2SO2 (g) + O2 (g) 2SO3 (g) Oleum Absorption: sulfur trioxide + sulfuric acid oleum SO3 (g) + H2SO4 (l) H2S2O7 (l) Oleum Dilution: oleum + water sulfuric acid H2S2O7 (l) + H2O (l) 2H2SO4 (l) ELECTROLYSIS of Sodium Chloride: Molten NaCl: Overall reaction: 2NaCl (l) 2Na (l) + Cl2 (g) Half-equations: 2Cl− (l) Cl2 (g) + 2e− Na+ (l) + e− Na (s) Concentrated NaCl: Half-equations: 2Cl− (aq) Cl2 (g) + 2e− 2H2O (l) + 2e− H2 (g) + 2OH− (aq) Dilute NaCl: Half-equations:
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surface (“subefflorescence’s”) [Brai et al 2010]. The degradation induced by soluble salts on wall painting in Komir temple was studied by sampling efflorescence’s from different places and studied by XRD and XRF. Samples confirmed the presence of chlorides and sulphates species in the form of the following crystalline
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Controlled: The mass of copper and zinc Materials 1. Copper metal and copper ions 2. Zinc metal and zinc ions 3. 2 Filter papers 4. Potassium Chloride (KCl) 5. Voltmeter (+- 0.1) 6. Goggles 7. Lab coat 8. Two Beakers (100ml each one) Method * First‚ put the filter paper with some Potassium Chloride (KCl) until it gets wet. * Then‚ separate the two beakers enough and then put the filter paper as salt bridge. This salt bridge allows electrons to flow between
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Hydrogen + Chlorine → Hydrogen chloride Ans. H2 (g) + Cl2 (g) → 2HCl (g) (ii) Sodium + Water --> Sodium hydroxide + Hydrogen Ans: 2Na (s) + 2H2O (liq) → 2NaOH (aq) + H2 (g). Q.3. Write a balanced chemical equation with state symbols for the following chemical reactions: (i) Solution of barium chloride and sodium sulphate in water
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| Stage 2 Biology | | Adelaide High School | [Osmosis Practical Report] Abstract: | The purpose of this investigation is to see if the concentration of Sodium chloride (NaCl) solution will affect the mass of the potato cylinder hence the rate of osmosis. This can be done by placing 5‚ identical in length (3cm) but different in weight‚ tubes of potato in 5 different beakers. Each containing an altered NaCl concentration. The concentrations used in this experiment were‚ 0%‚ 2%‚
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the appropriate number of significant figures (P1‚ M1) 4. You are working as a clinical chemist in charge of the testing of blood samples. You are required to mix a sodium chloride solution with water in the ratio of 2:5 a) Starting with 780ml of the sodium chloride solution‚ how much water needs to be added? (D1) b) Give your answer in standard form to an appropriate number of significant figures (M1) 5. You are a
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Ingredients Water(aqua)‚ sodium Laureth Sulfate‚ CocamidopropylBetaine‚ Sodium Chloride‚ Dimethiconol‚ Fragrance(Parfum)‚ Carbomer‚ Guar Hydroxypropyltrimonium Chloride‚ Tetrasodium EDTA‚ Amodimethicone‚ DMDM Hydantoin‚ TEA-Dodecylbenzenesulfonate‚ Citric Acid‚ C11-15 Pareth-7‚ Laureth-9‚ Trideceth-12‚ PPG-9‚ Tocopheryl Acetate (vitamin E acetate)‚ Propylene Glycol‚ Panthenol‚ Methyl-chloroisothiazolinone‚ Methylisothiazolinone‚ Mica (Cl 77019)‚ Titanium Dioxide (Cl 77891) Sodium Laureth Sulfate
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