performed: October 2 - 3‚ 2012 Gravimetric Analysis of an Unknown Group 1 Metal Carbonate Purpose: The purpose of this lab is to determine the identity of a Group 1 metal carbonate compound by gravimetric analysis. Procedure: The unknown carbonate is weighed and then dissolved in water. A solution of CaCl2 (calcium chloride) is added to the metal carbonate solution to precipitate the carbonate ions as CaCO3 (calcium carbonate). The precipitate is then filtered‚ dried‚ and weighed again. Data: Equation
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kettles and washing machines. The chemical name for lime scale is calcium carbonate‚ chemical formula CaCO3. It is usually caused by hard water (Water containing a higher than normal concentration of dissolved minerals such as calcium and magnesium). http://www.purewaterpeople.co.uk/blog/2013/06/what-is-limescale/ How is lime scale formed? Lime scale is built up over a long period of time. When hard water evaporates the calcium carbonate deposits are left behind and over time they start building up
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Common Name: Pearl Scientific Name: Calcium Carbonate Formula: CaCO3 Fundamental particles: Pearls are comprised of a positive Calcium ion (Ca+) and a negative Carbonate polyatomic ion (CO3+) Usage: Jewelry Properties: Pearls are good jewelry because they are hard and lustrous. Pearls are hard because of the strong Intermolecular forces created between the Calcium and the Carbonate ions. The pearls luster is dependent on the amount of nacre excreted. The Oyster produces nacre when
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the solubility of carbon dioxide in water. In this experiment‚ the solubility of carbon dioxide in the water of selected temperatures—0°C‚ 20°C‚ 40°C and 60°C—will be tested by using the carbon dioxide gas prepared from the reaction between calcium carbonate and hydrochloric acid and dissolving it in de-ionised water within a gas syringe. In regards to the temperature‚ the gas will not be heated directly but the temperature will be manipulated according to the temperature of the solvent‚ which
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and Na2CO3 __1.4__g Net mass of the Na2CO3 __0.7__g Step 6: Mass of filter paper __0.7__g Step 10: Mass of filter paper and dry calcium carbonate __1.2__g Net mass of the dry calcium carbonate _0.5___g (This is the actual yield) Step 11: Show the calculation of the theoretical yield of calcium carbonate. The mole ration between CaCl2-.2H2O and CaCO3 is 1:1 that means that if we have 0.00680 moles of CaCl2-.2H2O we will get 0.00680 moles CaCO3 Convert
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Determination of Calcium Carbonate in Eggshells – Background The major component of eggshells is calcium carbonate‚ CaCO3(s). This analysis is done volumetrically by using a characteristic reaction of carbonate compounds‚ namely their reaction with acids. Calcium carbonate (limestone) is very insoluble in pure water but readily reacts in acid according to the reaction below. 2HCl(aq) + CaCO3(s) → CaCl2(aq) + CO2(g) + H2O(l) + HCl(aq) (in excess) (limiting reagent) (1) (unreacted)
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made mainly of calcium carbonate (CaCo3) Some types of limestone are made of the remains of tiny animals and plants which lived in the sea millions of years ago We dig limestone out of the ground in quarries Its main use is as a building material/ in the manufacture of iron Powdered limestone + high temperature+ sand+ sodium carbonate= glass powdered limestone + powdered clay + heat= cement cement powder + water + sand +gravel= concrete Limestone + strong heating= quicklime (calcium oxide) + carbon
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KOMIQUINDOX (ANTIBIOTIC FEED ADDITIVE & GROWTH PROMOTER) Composition: Olaquindox………………10% Calcium Carbonate……………………30% Dextrose……………QS * Antibiotic feed grade with antibacterial activity. * For better health & growth in broiler. * Treat diarrhea in poultry & livestock. * Prevent bacterial‚ fungal & viral infection. * Give better egg production in breeder & layer. * Improves egg shell weight‚ size & internal contents in layer & breeder. * Excellent source
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BRICJ A Brick is a block‚ or a single unit of a ceramic material used in masonry construction. Typically bricks are stacked together‚ or laid as brickwork using various kinds ofmortar to hold the bricks together and make a permanent structure. Bricks are typically produced in common or standard sizes in bulk quantities. They have been regarded as one of the longest lasting and strongest building materials used throughout history. In the general sense‚ a "brick" is a standard-sized weight-bearing
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durable and long lasting chalk. Until they found out that seashells is made up of calcium carbonate that can also be found in chalk. The term seashells usually refer to the exoskeleton of invertebrate animals. Most seashells are commonly found at the beaches but in a variety of habitats it is also possible to find shells from freshwater animals. But what was known in these animals they are made up of calcium carbonate. It will now be easy for the less fortunate country or people
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