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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Revision Plan The feedback I got back from my peers was the same throughout the workshop. What my peers told me was that I needed to be more detailed‚ because I did not reach the limit of three pages. They also told me to make sure that I not only talk about one concept but that I also talk about the other author. They told me to make sure that I even out the arguments‚ meaning that I give enough information on both concepts. I learned from my essay that I need to develop my writing techniques
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(Revised) GCSE FOUNDATION REVISION GUIDE For Linear Course Written by MR P BENSON – Maths Tutor MARCH / APRIL 2005 VERSION 1 ISSUED FEBRUARY 2006 RE-UPDATED VERSION 2 MARCH 2008 VERSION 3 UPDATED FOR NEW SPECIFICATION 2011 CONTENTS PAGE Section Topic Page A Percentages 3 B Interest 3 C Nth Terms 3 D Ratio 4 E Lowest Common Multiples 4 F Highest Common Factors 4 G Prime Numbers 5 H Fractions
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Key Questions Lesson 1 1. One argument against continuing research on the atom is that the cost continues to increase at an alarming rate‚ and the benefits seem to be declining. Whereas quantum chemistry experiments as early as 80 years ago were very cheap and yielded considerable practical results‚ now very few if any practical results are emerging‚ but the costs of experiments continues to increase. On the other hand a common argument for the continued
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|Faculty of Engineering & Science | |Unit Code |: |UEMK1013 | |Course |: |Chemical Engineering | |Unit Title |: |Chemistry for Engineering | |Year/ Semester |: |Year 1/ Trimester 1 | |Lecturer |: |Dr. Loh Han Chern | |Session |: |201101
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Away by Michael Gow Half-Yearly Revision Act-by-Act Summary / Structure Genre: Form (Drama) As Away is a drama‚ it will be important for you to discuss the unique features of this form. You may wish to consider the following: Intertextuality: Shakespearean texts Away begins with the final scene from A Midsummer Night’s Dream (a comedy) and ends with a production of King Lear (a tragedy). These two texts frame the play and develop its major theme of reconciliation. Structurally‚ the orientation
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CHEM 301 LECTURE Unit 1 0 . COORDINATION CHEMISTRY Factors t hat affect solubility: Common ion: decrease in solubility Complex ion: increase in solubility How does complex ion formation increase solubility? Consider the complex ion formation between silver and ammonia: + Ag + 2NH3 A g(NH3 )2 + Kf = 1 .5 x 10 7 where Kf i s the formation constant (always >1 ‚ formation of the complex is highly favorable) Complex ion formation increases the solubility of sol ids in water
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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.
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ical Chemistry 1.which of the following pairs of compound will react? iC3H6+Br2 iiC3H6+Cl2 in sunlight iiiC3H6+H2O in the presence of sulphuric acid ivC3H6+H2O in the presence of concentrated sulphuric acid a.i b.i‚iii c.i‚ii‚iii d.all 2.liqiud y reacts with magnesium metal to produce a gas that burns with a pop sound when a flaming wooden splint is placed near it.liqiud y is most likely a compound that has the formula a.c2h5oh b.hcooh c.h3cooch3 d.c6h14 3.a compound p has the
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Centre Number For Examiner’s Use Candidate Number Surname Other Names Examiner’s Initials Candidate Signature Pages General Certificate of Secondary Education Higher Tier June 2012 Mark 2– 3 4–5 6 –7 Mathematics (Linear) 43652H 10 – 11 Paper 2 Wednesday 13 June 2012 8 –9 H 9.00 am to 11.00 am For this paper you must have: 12 – 13 14 – 15 l a calculator 16 – 17 l mathematical instruments. 18 – 19 20 – 21 22 – 23 Time allowed l 2 hours TOTAL Instructions l Use black ink or
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