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Essays in Aqueous Chemistry category
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Calculating the temperature of a Blue Bunsen Burner Flame
... Heat a certain amount of water for a while, using the water kettle. * When the water is heated, measure out a certain mass. Make sure the mass of the water is known. * Then, measure the temperature of the ...
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The effect of concentration of the rate of reaction
... to the HCL) Method: The method chosen for this investigation is 'how long it takes for the Magnesium to react with the Hydrochloric acid. The method is listed below in order of step: 1) Collect the appropriate equipment for the experiment (listed ...
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Acid rain is any precipitation that is acidic in nature
... released as sulphur dioxide when it undergoes combustion (mostly from coal fired power stations). In 1998, for instance, U.S. SO2 emissions were measured at 17.7 million tones. The level of acid rain has risen a lot since the industrial revolution. * ...
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The aim of my experiment is to find the exact concentration of limewater. In order to this I shall firstly dilute the hydrochloric acid provided and then by using the titration method the exact concentration of the limewater will be found.
... x 2: 2) = 74.1 Moles = 1 = 0.0135 moles or 1.35 x 10-2 74.1 So the approximate concentration of the solution is 0.0135 M. Now that the approximate concentration of the limewater has been calculated, a general idea of the range ...
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Acid rain is a cancer eating into the face of Eastern Canada and the North Eastern United States. In Canada, the main sulphuric acid sources are non-ferrous smelters and power generation.
... any form it will have large impact on the growth or the preservation of certain wildlife. Areas in Ontario mainly southern regions that are near the Great Lakes, such substances as limestone or other known antacids can neutralize acids ...
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An investigation to find the concentration, in g/dm³, of a limewater solution.
... as there are in twelve grams (0.012kg) of carbon - 12.' - The 'entities' may be atoms, molecules, ions, electrons or other particles or groups of particles. This helped me to gain an understanding of the term mole and it ...
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CuCO3(s) à CuO + CO2(g)2. or CuCO3(s) àCu2O(s) + ½ O(g) This experiment is to determine the correct equation from above. This will be done by measuring the amount of gas given off.
... total the scales back to 0. Then add 1g of CuCO3 using the spatular. Replace the bung in the conical flask. 5) Place the conical flask on to gauze on the tripod. 6) Check that the water level within the ...
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How to find the accurate concentration of the Sulphuric Acid.
... Solution containing 2.65g of anhydrous sodium carbonate Method Making the solution of Sodium Carbonate -Roughly weigh weighing bottle and lid on balance. -Work out new mass and add 2.65g of Sodium Carbonate. -Empty contents into beaker and add 50cm3 of distilled water, stir well until ...
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I predict that the more magnesium that is added to the copper sulfate solution the higher the temperature from start to 2 minutes will be.
... 50cm³ of copper sulfate solution (0.5M) in a measuring cylinder then add it to a polystyrene cup, as polystyrene is a bad conductor of heat. Before I add the magnesium I will wait until the copper sulfate solution is at ...
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In the first experiment we noticed how Phenolphthalein, thiosulfate and copper (II) sulfate changed their physical properties once mixed with NaOH, Iodine and Ammonia
... 5 mL Actual mass of BaSO isolated 0.7g 0.17g Table 2. Volume of BaCl Mass of BaSO 5mL 0.17g 10mL 0.41g 15mL 0.54g 20mL 0.76g 25mL 0.85g 30mL 0.93g II. DISCUSSION In this experiment we combined sulfuric acid and aquenous barium chloride to produce a precipitate, barium sulfate, and hydrochloric acid. Our assigned volumes of 0.20 ...
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test for anions present in various salts.
... Silver nitrate solution * Calcium carbonate * Lead carbonate * Potassium chloride * Sodium sulphate * Tap water HEALTH AND SAFETY - Hydrochloric acid is corrosive and may cause burns must be handled with care. - Nitric acid is corrosive and can cause severe burns should ...
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What is Acid Rain?
... and the types of fish, trees, and other living things that rely on the water. Dry deposition refers to acidic gases and particles. About half of the acidity in the atmosphere falls back to earth through dry deposition. The wind ...
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whether the strength of Hydrochloric acid will affect the speed of the rate of reaction when reacting with Magnesium Ribbon.
... to try and find a catalyst for this experiment; a catalyst is a substance that increases the rate of a chemical reaction without being consumed in the reaction. Finding a catalyst for this particular experiment could take months never mind ...
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"Complexometric Determination of Nickel using EDTA".
... % of Nickel in NISO . 6H O = 58.7 / 262.8 x 100 =22.3% Figure 1.1 Figure 1.2 Procedure: * The next stage of the experiment was the practical procedure stage (as shown in figure 1.3), which was carried out in the following manner: 1. I ...
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"Does the concentration or amount of a liquid affect the heat given out in a reaction?"
... will be completing 15 experiments, using 5 different amounts of acid, keeping the amount of alkali the same each time, but repeating 3 times, to ensure correctness. To ensure that I can record the best temperature, I will be using ...
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"Finding out how much acid there is in a solution"
... glass wear available. Calculations: Sodium carbonate salts relative formula mass: Na2CO3 . 10H2O = 106 . 180 = 286 N.B there is 1 mole of sodium carbonate crystallised with 10 moles of water in this Salt Volume of sodium carbonate required per titration + ...
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"What Affects How Quickly Sodium Thiosulphate (thio) Goes Cloudy?"
... under the conical flask. As the reaction takes place, the solution becomes cloudy and the cross gradually disappears. Being as I am using Hydrochloric Acid and Sodium Thiosulphate, I must ensure that I have protection from the liquids; therefore I ...
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‘The Relative Strength of an Unknown Acid’
... hypothetical temperature rise and I am also going to choose an enthalpy change from the table above. I am going to use the enthalpy change -50.1, CH3COOH. The specific heat capacity is 4.18 Jg-1 K-1. Enthalpy Change = Mass x ...
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‘The Relative Strength of an Unknown Acid’.
... hypothetical temperature rise and I am also going to choose an enthalpy change from the table above. I am going to use the enthalpy change -50.1, CH3COOH. The specific heat capacity is 4.18 Jg-1 K-1. Enthalpy Change = Mass x ...
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Standardization of sulphuric acid.
... it is stable and unaffected by the atmosphere which implies that the purity will not be affected. Besides, it is available in reasonable price and is not hygroscopic. Finally, its reasonably high relative formula mass reduces the weighing error. ...
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'Bacterial leaching.'
... converting Chalcopyrite into a copper ion solution: 183 words 4CuFeS2(s) +17O2 (g) +4H+ (g) 4Cu+2(l) +2H2O (l) + 8SO4-2 (aq) +4Fe+3(l) The copper ion solution can then be drained and the copper ions removed by the process of lignand exchange solvent extraction, ...
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'The Molecular Formula of Succinic Acid'.
... 0.05M because of the ratio 2:1. In the formula of succinic acid below n is a whole number between 1 and 4. So therefore first I need to calculate the relative molecular mass of succinic acid. HOOC(CH2)nCOOH H = ...
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'The Roman law of delict reveals a confusion between the policies of punishing the malefactor and repairing the wrong.' Do you agree with this criticism?
... of ownership whilst local authorities come in and provide electricity, water and sewerage disposal. This has been tried in Bolivia and Pakistan. It is a cheaper option than the site and service schemes but simply hides the real problems. The germs ...
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2 Bases and alkalis
... are formed. Neutralisation is used in the following everyday situations: * Farmers use an alkali called calcium hydroxide (slaked lime or lime). This is spread on the fields or ploughed ground. It is used to neutralise the slightly acidic soil ...
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2222222222
... tripod and heat until a gas starts to form. 4. Measure the temperature with the thermometer and record the results. 5. Repeat steps 3 and 4 with the old coolant. 6. Repeat steps 3 and 4 with the water. Experiment 2 1. Collect all materials ...