Acid-Base Titrations: Analysis of Antacid Tablets Cuenca‚ Carlo Nicolo B. Del Prado‚ Rockson D. MEB21 Bachelor of Science in Biology – Major in Medical Biology College of Science De La Salle University – Dasmariñas Dasmariñas‚ Cavite Philippines ABSTRACT This experiment was performed to learn the technique of acid-base titration and to compare the efficiency of commercially available antacids by looking at their weight of HCl and weight of antacid values. The analysis of antacid
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aluminum oxide 5) sodium iodide 6) strontium fluoride 7) lithium sulfide 8) radium chloride 9) calcium oxide 10) aluminum phosphide 11) potassium sulfide 12) lithium bromide 13) strontium phosphide 14) barium chloride 15) sodium bromide 16) magnesium fluoride 17) sodium oxide 18) strontium sulfide 19) boron nitride 20) aluminum nitride 21) cesium oxide 22) rubidium iodide 23) magnesium oxide 24) calcium bromide 25) lithium iodide 26) berylium bromide 27) potassium oxide 28) strontium iodide 29)
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Biology EEI Overview By Jack Chappell Introduction: The most common fungi in the world is Bread Mold Fungus‚ also known as Rhizopus stolonifer (NCBI database). This mold is a common problem in most households throughout the world. The experiment being undertaken‚ changes the ingredients in bread to test the rate in which mold grows differently. These results will also be accommodated with climate control and the effects that could be associated with temperature and humidity. Mold will
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hydrolyze the enzyme Urease efficiently to produce microbial concrete. Such bacterial are known to produce calcium which is useful in giving strength to cement. We are working in 2 stages. Stage 1: Here we check the effect of bacterial solution on cement mortar and along with that we check the effectiveness of the bacterial solution to fill the cracks in concrete by precipitation of calcium in the cracks. Stage 2: To prepare concrete using the cement and solution (bacterial) in optimum ratio
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Chemical Earth 1. The living and non-living components of the Earth contain mixtures Construct word and balanced formulae equations of chemical reactions as they are encountered 1. Build a word equation Reactants on left‚ Products on right 2. Convert word equation into chemical formula for the reactants and products Using valency rules 3. Balance the equation Adjust coefficients to get equal numbers of each kind of atom on each side 4. Specify the physical state for each species present
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Fischer Esterification is a reaction between a carboxylic acid and an alcohol to form an ester. Refluxing the two reactants with an acid catalyst forms the ester. Fischer Esterification was discovered in 1895 by the German chemist‚ Emily Fischer and Arthur Speier. The reaction is also sometimes known as Fischer-Speier Esterification. The major components of almost all natural flavors and odors are esters. These fragrant esters are formed by the Fischer Esterification reaction. Saponification
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LAB 3: QUALITATIVE ANALYSIS Part 2- ANIONS Sameera Feroz Butt Lab Partner: Ram Soni Thursday January 30‚ 2014 Leilani Morales CHEM1131-02 OBJECTIVE The objective of this experiment was to use qualitative analysis to determine the chemical characteristics of four known anions by systemic confirmatory testing. The chemical characteristics observed were to be used to identify an unknown sample. Sulphuric acid was to be added to a carbonate solution and an effervescent reaction would
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CUMULATIVE MOLE WORKSHEET (Chemistry IB) 1. How many molecules are present in 27.0 g of distilled water? A. 2.7 x 1024 B. 1.5 C. 9.0 x 1023 D. 4.5 2. How many moles of carbon dioxide will be formed when 32.0 g of methane‚ CH4‚ burns completely in oxygen? A. 1.0 B. 2.0 C. 4.0 D. 8.0 3. How many oxygen atoms are present in 0.5 mole of pentahydrated copper(II) sulfate‚ CuSO4.5H2O? A. 2.5 B. 4.5 C. 3.0 x 1023 D. 2.7 x 1024 4. What is the total number of atoms in 3.0 molecules of propanone‚ CH3COCH3
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experiment‚ the qualitative traits of chemicals and their corresponding chemical reactions with other chemicals were more evident and familiar. Five preliminary tests were used to infer possible ions: two for cations‚ namely‚ precipitation reactions with hydroxide (OH-) and ammonia (NH3) respectively; and two for anions‚ namely‚ precipitation reactions with barium nitrate (Ba(NO3)2)‚ and non-precipitation reactions involving ferric chloride (FeCl3) and potassium permanganate (KMnO4) respectively. Confirmatory
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Unit 5 Reading Guide Questions Which minerals are stored in bones? Triglycerides‚ calcium phosphate‚ and calcium hydroxide are all stored in the bones as mineral salts Which types of bones provides a large‚ flat surface area for muscle attachment? Flat bones such as the scapulae have large‚ flat surface area for muscle attachment. Describe the location‚ composition‚ and function of the epiphyseal plate. The epiphyseal plate is located in the metaphysis‚ and is composed of hyaline cartilage
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