The Influence of the Amount of Light on Photosynthesis and Transmittance “I pledge that no unauthorized assistance has been given or received in the completion of this work. Experiments described were performed by me and/or my lab group and this write-up is entirely my own creative work.” X________________________________________ I. Introduction Photosynthesis is the process that plants use to convert light energy into chemical energy. The reactants of photosynthesis include carbon dioxide
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The measured the mass of the filter paper and recorded it to you data table. Set up the funnel‚ filter paper‚ and flask. Gently swirl the reaction beaker to suspend the precipitate. Slowly pour the entire contents‚ a portioned at a time into the filter paper. Rinse the reaction beaker several times with distilled water and then pour it to filter paper to collect all
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year 12 Chemistry – mr symoniw | Extended Experimental Investigation | Food Chemistry | | Yash Kamal | Semester 1 | Index Rationale – 1 Hypothesis – 6 Aim – 6 Materials – 6 Method – 6 Results – 6 Discussion – 10 Conclusion – 17 Recommendations – 17 Appendices and Bibliography – 19-24 Index Rationale – 1 Hypothesis – 6 Aim – 6 Materials – 6 Method – 6 Results – 6 Discussion – 10 Conclusion – 17 Recommendations – 17 Appendices and Bibliography – 19-24 Rationale
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Date: May 22‚ 2012 Name: Cristhian Valor Organic Laboratory Pre-Lab 1. Main reaction sequence including side reaction products: 2. 3 Sentence Summary of the Experiment: The OH group on the benzene ring in salicyclic acid reacts with acetic anhydride to form an ester functional group. Thus the formation of acetylsalicyclic acid (aspirin) is referred to as an esterification reaction‚ which requires the presence of H+ (H2SO4 in our case). The technique used to purify the aspirin content
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chloride 100 cm3 volumetric flask Acetone Conical flask Isopropanol Measuring cylinder Bromothymol blue Procedures: 1. 150 cm3 of 0.04M NaOH(aq) is placed in a beaker. 2. 100 cm3 of a 50/50 acetone/watermixture (by volume) is put into a stoppered flask or bottle and is mixed well. 3. 1.00 cm3 (±0.05 cm3) of t-butyl chloride liquid is added in the acetone/water mixture prepared in step 2. 4. The flask is stoppered and shaken well‚ and time is measured. The flask is to be kept stoppered except
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Introduction The purpose to of this experiment is to carry out the alkylation of sodium saccharin with iodo-ethane and analyze the product mixture to determine the structure of the major product. Sodium saccharin is made from the base catalyzed de protonation of saccharin. This nucleophilic reaction is special because the nucleophilic atom can be oxygen or nitrogen and the leaving group is iodide ion. The solvent used in this reaction is very important for determining the rate of nucleophilic
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which is seen precipitating as a finely divided red power. Materials: Flask beaker Copper solution Balance Hot plate •150 ml beaker •1 gram of iron power •30 ml of CuSO₄ Procedure: Weigh a clean dry 150 ml beaker. Accurately weigh approximately 1 gram of iron power into the beaker. Do not exceed 1 grams. Measure 30 ml of 1 M. CuSO solution into a graduate cylinder. Pour it into an Erlenmeyer flask‚ and heat gently to almost boiling. Slowly add the hot CuSO solution to the
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Introduction The production of acetone and butanol by means of solvent-producing strains of Clostridium spp. was one of the first large-scale industrial fermentation processes to be developed‚and during the first part of this century it ranked second in importance only to ethanol fermentation. The reason for the almost total demise of this fermentation in the early 1960s was the inability of the fermentation process to compete economically with the chemical synthesis of solvents. However‚ interest
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Titration Lab How Much Citric Acid is in Your Soda? PURPOSE To determine the molarity (concentration) of citric acid (H3C6H5O7) in various different citrus flavored sodas. BACKGROUND PRINCIPLES Popular sodas all strive for a somewhat sour (’tart’) flavor and manufacturers utilize acids to impart this taste. While there are a vast variety of different brands of sodas on the market‚ they can be broken into two main categories: dark or clear. This differentiation is not only a simple color
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few) for their innovative concept especially from the youngsters to which they cater. One day‚ one customer expressed that the only thing that makes customers flock to Chemistea is their use of Erlenmeyer flasks as drinking glasses‚ with which the former would take their selfies. However‚ the use of flasks isn’t only for aesthetic purposes but also for practical reasons (it reduces the risk of spillage and is more eco-friendly than plastic cups). More importantly‚ Chemistea isn’t just named so because
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