solution. Hypothesis: If the halide ions react‚ then the production of precipitate and complex ions will be recognizable. Materials: * * 24-well microplate * AgNO3‚ 0.1 M * Ca(NO3)2‚ 0.5 M * Gloves * KBr‚ 0.2 M * KI‚ 0.2 M * Lab apron * Na2S2O3‚ 0.2 M * NaCl‚ 0.1 M * NaF‚ 0.1 M * NaOCl (commercial bleach)‚ 5% * NH3(aq)‚ 4 M * Safety goggles * Starch solution‚ 3% * Thin-stemmed pipets (12) Procedure: 1.) Put on safety goggles
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immediately after contact. Homogeneous| E.|Blue dye + NaOCl||Stays blue. Homogeneous| | with the 1 drop of HCl||Mixes and turns a bluish green color. Homogeneous| F.|NaOCl + KI||Slightly yellowish tint to the solution. Homogeneous| | with 1 drop of starch||Turned the slim yellow into a slight brown tint. Homogeneous| G.|KI + Pb(NO3)2||Turns yellow immediately after contact with little yellow powdery chunks. Heterogeneous| H.|NaOH + phenolphthalein||Turns a dark pink/purple and expands. Homogeneous|
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prepared directly by dissolving iodine in water because iodine is too volatile so it is almost impossible to avoid loss while the solution is being prepared. Therefore iodine is prepared in situ by mixing pure potassium iodate (KIO3 ) and potassium iodide (KI) in acidified medium. IO3- + 5I- + 6H+ → 3I2 + 3H2O The excess iodine that has not reacted with ascorbic acid in fruit juices (vitamin C) is then back titrated by standardized sodium thiosulphate solution. Iodine can be decolourized
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and Discussion Principle behind the experimental design Results are tabulated and with table number and title Graph‚ Drawings (Figure # and Title) Conclusion Recommendation Experimental 1.0 A. Reagents - Anhydrous ZnCl2 - 6M H2SO4 - 10% KI - 6M NaOH - 10% K2Cr2O7 - conc. HCl - DNPH reagent (potential carcinogen!) - unknown sample B. Materials - Small test tube - Hot Plate - 250 mL beaker - Pasteur Pipettes 2.0 Procedures Chemical Analysis was done for
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toys. It was unfortunate for the workers‚ but OAC had to make a decision because they could not find a better way to stay completive and lower cost. Assuming that the NYT reporting was accurate‚ is it ethical for the OAC to continue working with Kin Ki? Yes‚ I believe the only way for OAC to keep working with the company is to make sure the
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Poetic Elements in Sande¿ak¡vyas Introduction Sanskrit is the vast and rich treasure house of various branches of knowledge. It has produced magnificent and sublime poetry since time immemorial. Ancient Indian thinkers thought a lot on the various aspects of poetry from different angles and consequently criticism of poetry developed here. New views emerged‚ several literary principles were explored and a series of schools of poetics came into existence. Sanskrit poetics is remarkably rich. Inasmuch
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file for finding out about the budget of your municipal corporation in the major items on which money was spent? 3. Make a model on tsunami. 1. Grishma Ritu main apne swasthya ka dhyan rakhne hetu aap kaun se prayas karenge. 2. Bijli ki avyavastha ki aur dhyan aakarshit karte huye bijli board ke adhikari ko patra likhiye. 3. 10 muhavaren ka prayog karte huye swarachit kahani likhiye MAKE A PPT ON “ANY SIX” OF THE FOLLOWING TOPICS & ALSO SHOW IT
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the same mistake. If you make a mistake in a one-step‚ you might injure the person and twist the wrong muscle. Being a high black belt means to have a good and positive attitude. If you be lazy and don’t do a loud ki-hap‚ the lower belts will do what you do and be lazy and not ki-hap. If you are asked to lead stretching or counting‚ say a loud‚ “yes sir!” and do not complain. You should show leadership when you do stretching exercises or kicking because if you do not count loudly‚ the class
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A Project Report On Architecture of the Tamil Nadu seen through their literature BY Ravi Agastya Narumanchi 2012A3PS198H Under the supervision of Maria Mercy Amutha SUBMITTED IN PARTIAL FULLFILLMENT OF THE REQUIREMENTS OF BITS C323/C324: STUDY ORIENTED PROJECT BIRLA INSTITUTE OF TECHNOLOGY AND SCIENCE PILANI (RAJASTHAN) HYDERABAD CAMPUS (April 2014) ACKNOWLEDGMENTS
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found in the body if various compounds are added to the halide? How will the halides react? Introduction: For this lab we tested 6 halide salts found in the body‚ and their reactivity when a compound is added. We tested the halides NaF‚ NaCl‚ KBr‚ KI‚ and two unknown halides. To find the reaction of the halide‚ we are adding drops of Ca(NO3)2‚ AgNO3‚ AgNO3 + Na2S2O3‚ and NaOCI + Starch to the halides. Each halide will be separated from each other and the drops of each compound will be added to the
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