Section instructor: Supratim Giri Email: girisupr@gmail.com Office: BMBT 416 1 CY 101: Electrochemistry 2 Submarines can propagate on the sea surface just like a ship Unless it’s a nuclear submarine; just like a ship‚ submarine’s propulsion is supplied by a diesel engine The sub intakes oxygen from air to run its diesel engine. But in order to strike an enemy ship‚ it has to take plunge in deep sea and remain submerged for a period between 24 to 48 hours! How the submarine
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M10/3/HISTX/BP1/ENG/TZ0/XX/S3/M This markscheme is confidential and for the exclusive use of exa miners in this examination session. It is the property of the International Baccalaureate and must not be reproduced or distributed to any other person without the authorization of IB Cardiff. -3- M10/3/HISTX/BP1/ENG/TZ0/XX/S3/M For the attention of all examiners: if you are uncertain about the content/accuracy of a ca ndidate’s work please contact your team leader. 1. (a) W hat does Source B suggest about the views of
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PURPOSE: The purpose of this lab is to familiarize ourselves with the techniques associated with separating a mixture of different solids. We will learn how the unique properties of substances can aid in this process and help us distinguish each pure substance from one another. DATA OBSERVATIONS CALCULATIONS CONCLUSION/DISCUSSION QUESTIONS A. How did your proposed Procedures or flow charts at the beginning of this experiment compare to the actual Procedures of this lab exercise? B. Discuss
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no excuse for not coming up with better products to whet the appetites of customers who will eventually need to upgrade their computing and electronic devices. Traditionally‚ semiconductor companies controlled the entire production process‚ from design to manufacture. Yet many chip makers are now delegating more and more production to others in the industry. Foundry companies‚ whose sole business is manufacturing‚ have recently come to the fore‚ providing attractive outsourcing options. In addition
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CHEMISTRY Guess Paper – 2013 Class – XI Subject - CHEMISTRY MAX MARKS=90 ……………………………………………………………………………………… General instructions: All questions are compulsory. Marks for each question are indicated against it. Questions number 1to 8 are very short –answer questions‚ carrying 1 mark each. Answer these in one word or about one sentence each. Questions number 9 to18 are short –answer questions‚ carrying 2 marks each. Answer these in about 30 words each. Questions number19 to27
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Burning Money Chemistry Demonstration Principle You soak a note in ethanol (alcohol) and it will burn when lighted‚ leaving the note untouched. This is because alcohol is more flammable‚ and burning alcohol causes it to vaporize‚ along with the water present in the solution. This removes heat from the note and prevents it from reaching its combustion point. Materials Bill/Dollar bill (higher denomination if you’re brave) Tongs container Matches or a Lighter Salt (or one of these chemicals
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experimental techniques which can be used to tell us where the atoms are located in a molecule. Using advanced techniques‚ very complicated structures for proteins‚ enzymes‚ DNA‚ and RNA have been determined. Molecular geometry is associated with the chemistry of vision‚ smell and odors‚ taste‚ drug reactions and enzyme controlled reactions to name a few. Molecular geometry is associated with the specific orientation of bonding atoms. A careful analysis of electron distributions in orbitals will usually
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Data and Observations: Complete a data table that includes a prediction of reaction type (single replacement‚ double replacement‚ synthesis‚ decomposition‚ or combustion)‚ observations‚ and identification of reaction type for each reaction in the lab. (10 points) Reactants Prediction of Reaction Type Observations Reaction Type Conclusion: 1. Write a balanced equation for each
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Organometallic preparation and addition to carbonyls‚ Wittig reagent preparation and Wittig rxn‚ Wolff‚ H-based nucleophile carbonyl reduction‚ imine formation‚ reductive amination (rxn only)‚ ketal/acetal formation‚ dithiane chemistry (rxn only)‚ alpha-bromination of ketones‚ -COOH properties (the trends on HW4)‚ Fischer‚ acidic/basic hydrolysis of esters/amides/nitriles‚ CH2N2‚ acid chloride formation (rxn only)‚ acid chloride rxns with esters and amides. 2 Rxn of carboxyllic acid derivatives
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EXPERIMENT 2: SYNTHESIS OF ORANGE II (2-NAFTHOL ORANGE OBJECTIVE 1. To produce dye based to the coupling of diazonium. 2. To understand the characteristic of dye orange II. INTRODUCTION The first dye was introduced by William Henry Perkin on 1856. It can be produced by the coupling of diazonium sulfanilic acid with nafthol in alkaline solution.. This was the common method used to produce dye nowadays. In this experiment‚ dye produced was the orange II. Azo compound is compound that contain
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