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Knockhardy answers. AN INTRODUCTION TO ORGANIC CHEMISTRY A guide for A level students KNOCKHARDY PUBLISHING 2008 SPECIFICATIONS KNOCKHARDY PUBLISHING ORGANIC CHEMISTRY INTRODUCTION This Powerpoint show is one of several produced to help students understand selected topics at AS and A2 level Chemistry. science@btinternet. It is based on the requirements of the AQA and OCR specifications but is suitable for other examination boards. Perfect for students and teachers. It is based on the requirements of the AQA and OCR specifications but is suitable for other examination boards Thanks to Jonathan Hopton for providing the Knockhardy Science notes. knockhardy. Share your videos with friends, family, and the world e. C. Question. txt) or view presentation slides online. It explains how to calculate oxidation states of elements in compounds and ions using hydrogen, oxygen and fluorine as benchmarks Find answers for your Kahoot tests easily and quickly. g. it must generate free energy If there had been another carbon atom on the other side of the C-X, its hydrogen(s) would also be open to attack. 5 • Convert the following volumes into m3 IS A REACTION SPONTANEOUS? What is the sign of the entropy change in the following reactions ? Give reasons for your decision. 2 Explain what reactions, if any, will occur if aqueous solutions of KCl, KBr and KI are treated with; a 3Fe(s) + 4H2O(g) Fe3O4(s) + 4H2(g) Kp = KNOCKHARDY PUBLISHING 2015 Example 1 A mixture of 16g of O2 and 42g of N2 , exerts a total pressure of 20000 Nm-2. Buy now! Thanks to Jonathan Hopton for providing the Knockhardy Science notes. The ANSWER: The molar mass is 44g mol-1 Q. This document is a guide for A-level chemistry students on redox (reduction-oxidation) processes produced by Knockhardy Publishing in 2015. uk Dec 20, 2019 · Enthalpy, Entropy & Free Energy A Level only Model Answers 1 Time allowed: 32 minutes NUCLEAR MAGNETIC RESONANCE SPECTROSCPY A guide for A level students KNOCKHARDY PUBLISHING KNOCKHARDY PUBLISHING NMR SPECTROSCOPY INTRODUCTION This Powerpoint show is one of several produced to help students understand selected topics at AS and A2 level Chemistry. It provides an overview of the structure and hybridization of carbon atoms in Nov 7, 2014 · 2 F321 Oxidation and Reduction Complex ions ‘The sum of the oxidation numbers adds up to the charge on the ion’ in SO 4 2- S = +6 , O = -2 [ i. Our free Ask AI Answer Engine enables users to ask questions in a natural language and receive detailed, accurate responses that address their exact queries, making it an excellent alternative to ChatGPT. It covers the key topics of alkane structure, properties, reactions and industrial processes. pdf - Free download as PDF File (. Three contestants, including the previous show's champion, compete in six categories and in three rounds (with each round's "answers" being worth more prize money). 5 What organic products do you get with alcoholic NaOH and CH3CHBrCH2CH3 ? Explain your answers with a mechanism. NOMENCLATURE How long is the longest chain? Answer the questions below then check your answers 1: What is the oxidation state of hydrogen in most compounds? Topic 8 – Energetics I This topic is included in AS Paper 2, and A Level Paper 1 and Paper 3 for Edexcel Chemistry. Knockhardy Kinetics Notes. txt) or read online for free. 4 The rate-determining step Properties of haloalkanes Functional Groups Rates of Hydrolysis of Some Halogeno-compounds chemistry 2 - waiukucollegescience The ability to form bonds between atoms of the same element. Kelvin IS A REACTION SPONTANEOUS? What is the sign of the entropy change in the following reactions ? Give reasons for your decision. This topic is included in AS Paper 1 and Paper 2, and A Level Paper 1, Paper 2 and Paper 3 for OCR (A) Chemistry. "Jeopardy!" is a classic game show -- with a twist. Ai (iAsk™ AI) is an advanced free AI search engine that enables users to Ask AI questions and receive Instant, Accurate, and Factual Answers. . 20 0. If you would like a paper copy of these documents, please ask your teacher. A licence for these resources costs £4. ppt from CHEMISTRY 101 at Woodbridge College. NOMENCLATURE How long is the longest chain? iAsk. Transcript CHROMATOGRAPHY A guide for A level students KNOCKHARDY PUBLISHING SPECIFICATIONS CHROMATOGRAPHY INTRODUCTION This Powerpoint show is one of several produced to help students understand selected topics. 3. Summary notes, definitions, flashcards and past exam questions by topic for CAIE Chemistry International AS and A-Level Physical Chemistry Does anyone know where to find the answers to the questions in the knockhardy science note packs? Thank you A2 AQA Chemistry Learn with flashcards, games, and more — for free. By using excess ammonia, you ensure that all the haloalkane molecules react with ammonia rather than the newly produced haloalkane. The amine produced is also a nucleophile (lone pair on the N) and can attack another molecule of haloalkane to produce a secondary amine. Explore essential topics in Organic Chemistry, from Hydrocarbons to Carboxylic Acids. com It has been brought to my attention that a well known website has been selling Powerpoints that were basically mine with a few amendments. What is the partial pressure of each gas ? moles of O2 moles of N2 USEFUL VALUES TO KNOW - In compounds, one needs to know one value to work out another. Concentrations do change during a reaction. Dec 20, 2019 · Chemists use three energy terms, enthalpy, entropy and free energy, to help them make predictions about whether reactions may take place. 32 Expt 3 0. What is the sign of DG? d) C6H12(l) + 9O2(g) —> 6CO2(g highly endothermic - there is a strong electrostatic attraction between ions of opposite charge ANSWER 20cm3 of unused oxygen and 60cm3 of carbon dioxide. The page doesn't cover the practical details of doing This document provides the names and structures of various amines and amides. SN1 is favoured for tertiary haloalkanes where there is steric hindrance to the attack and a more Knockhardy Publishing – Science Notes Revision notes, PowerPoint shows and multiple choice questions for A Level Chemistry. 1) Powerpoint VEGETABLE OILS (1. ‘The sum of the oxidation numbers adds up to zero’ Elements The amine produced is also a nucleophile and can attack another molecule of haloalkane to produce a secondary amine (see mecahnism below). 1) Powerpoint ACIDS, BASES & SALTS (2. Explore comprehensive AS and A-Level Chemistry notes, flashcards, and videos on Periodicity, Group 2 Metals, and Group 7 Halogens. Organoboron: Info on organoboron Summary notes, definitions, flashcards and past exam questions by topic for CAIE Chemistry International AS and A-Level (2022-2024 exams) Inorganic Chemistry This form of nucleophilic substitution discussed so far is known as SN2; it is a bimolecular process. Apply le Chatelier’s principle to predict the change in E° Q. 1) (2. 4. Perfect for students seeking clarity and depth. View 15redoxpp (1). The Student Room has contributed, mainly for the examination-style answers for physics, chemistry and biology. ) of Mn in MnO 4¯ ? • the O. the presence of other functional groups - in case also they react Kinetics I || Kinetics II Thanks to Jonathan Hopton for providing the Knockhardy Science notes. Which of the following straight chain alkanes has the highest boiling point? C 2 H 6 C 3 H 8 C 4 H 10 Questions and model answers on Gibbs Free Energy Change, ΔG for the Cambridge (CIE) A Level Chemistry syllabus, written by the Chemistry experts at Save My Exams. Related documents haloalkanes 2013 Halogenoalkanes haloalkanes (halogenoalkanes) Senior Science topics Programme Nucleophilic Substitution Swapping 1. 1 12. 16 Expt 2 0. THE CHEMISTRY OF AMINES A guide for A level students KNOCKHARDY PUBLISHING KNOCKHARDY PUBLISHING AMINES INTRODUCTION This Powerpoint show is one of several produced to help students understand selected topics at AS and A2 level Chemistry. Topic 9 – Kinetics I This topic is included in AS Paper 2, and A Level Paper 2 and Paper 3 for Edexcel Chemistry. org. Feb 12, 2019 · Science questions and answers, including answers to physics questions, biology questions, chemistry questions, medical and health questions, technology questions and space science questions. Whether you're going to questions or need quick help, it saves time and boosts your academic performance! CH3 CH3 CH CH2 CH2 CH3 CH CH3 THE ANSWERS ARE ON THE NEXT SLIDE CH2 CH3 CH2 CH2 CH CH3 CH3 CH2 CH3 CH3 CH CH2 CH3 I. 2. This document contains questions about amines asking the student to name reactions, provide chemical equations, distinguish between amines using chemical tests, explain basic properties of amines including their relative basicities, solubilities, and boiling points. Which one of the following is a linear molecule? BeCl 2 BF 3 CH 4 CCl 4 gcse. 1-2) Powerpoint ENTROPY & FREE ENERGY A guide for A level students KNOCKHARDY PUBLISHING 2015 SPECIFICATIONS ENTHALPY CHANGES INTRODUCTION This Powerpoint show is one of several produced to help students understand selected topics at AS and A2 level Chemistry. Jan 19, 2013 · Presentation Transcript AN INTRODUCTION TO ORGANIC CHEMISTRY A guide for A level students KNOCKHARDY PUBLISHING KNOCKHARDY PUBLISHING ORGANIC CHEMISTRY INTRODUCTION This Powerpoint show is one of several produced to help students understand selected topics at AS and A2 level Chemistry. ISOMERISM A guide for A level students KNOCKHARDY PUBLISHING 2015 SPECIFICATIONS KNOCKHARDY PUBLISHING ISOMERISM INTRODUCTION This Powerpoint show is one of several produced to help students understand selected topics at AS and A2 level Chemistry. AI, the best AI homework helper, provides instant and precise answers for all subjects. MASS SPECTROMETRY A guide for A level students DETECTOR ION SOURCE ANALYSER KNOCKHARDY PUBLISHING 2015 SPECIFICATIONS KNOCKHARDY the second (Li - Ne) contains the top elements of each group; these have small sizes and relatively high ionisation energies so are atypical The difference between an individual measurement and the true value (or accepted reference value) of the quantity being measured. He found that, when two products were formed, one was formed in a larger quantity. Amines and amides are organic compounds containing nitrogen, with amines containing an NH or NR2 group and amides containing a C(O)NR2 group. If the haloalkane is unsymmetrical (e. They kindly removed them as they were under the impression that it was the work of the teacher / lecturer who had provided them. 0858g 16. N. C4H8Br2 ANSWER CARBON-13 NMR SPECTROSCOPY After hydrogen, the most useful atom providing information is carbon-13. Summary notes and past exam questions by topic for WJEC Eduqas Chemistry A-Level Physical & Inorganic Chemistry, examined in Components 1 and 3 Chemguide: Core Chemistry 14 - 16 Acid-alkali titration calculations This page looks at calculations resulting from acid-alkali titrations. 6. I don't have anything Edexcel specific, but these AQA/OCR ones from Knockhardy have been a godsend to me and can be adapted to fit the Edexcel spec without too much hassle - better than starting from scratch, at least! Chemsheets has some great resources too, but again it's geared towards AQA, and it also lacks the near-complete content coverage of the Knockhardy powerpoints (it's also behind Thanks to Jonathan Hopton for providing the Knockhardy Science notes. Surely, this means that energy has to be put in for the reaction to take place The answer is that enthalpy change DH does not give the full story. +6 + 4 (-2) = -2 ] the ion has a 2- charge Example What is the oxidation number (O. 6) Powerpoint CHEMICAL BONDING (2. The presentation is intended for A-level chemistry students and follows the requirements of major exam boards. Natural carbon contains about 1% of this isotope so the instruments for its detection need to be sensitive and spectra will take longer to record. 99 but there is a free trial. Don't even think about reading this page unless you are happy with all the other calculations in this section. Individual students GCSE Chemistry presentation covering formula calculations, relative mass, percentage composition, reacting masses, and yield. 4 What would you expect the spectrum of 2-bromopropane to be like ? Explain your answer in terms of a) the chemical shift b) the splitting pattern c) integration C8H16O2 The Russian scientist, Markownikoff, investigated the products of the addition of hydrogen halides to alkenes. BALANCING REDOX HALF EQUATIONS 1 Work out formulae of the species before and after the change; balance if required 2 Work out oxidation state of the element before and after the change 3 Add electrons to one side of the equation so that the oxidation states balance 4 If the charges on the species (ions and electrons) on either side of the equation do not balance then add sufficient H+ ions to IS A REACTION SPONTANEOUS? What is the sign of the entropy change in the following reactions ? Give reasons for your decision. Individual students may use the Conditions Because TEMPERATURE and CONCENTRATION affect the value of a standard electrode potential any variation can also affect the probability of a reaction taking place. of oxygen in most compounds is -2 • there are 4 O’s so the sum Nov 7, 2014 · ELECTROCHEMISTRY - KnockHardy ePAPER READ DOWNLOAD ePAPER TAGS electrode electrons zinc hydrogen electrochemistry ions equations solutions species equation knockhardy www. The correct order for the basic features of a mass spectrometer is acceleration, deflection, detection, ionisation ionisation, acceleration, deflection Below you will find useful background notes, links, documents, PowerPoints, quizzes, questions and homework activities. The up-to-date version of Markownikoff’s Rule uses carbocation stability as a criterion for predicting the products. 2. 2-bromobutane) a mixture of isomeric alkene products is obtained. Free energy •A reaction is only spontaneous if it can do work i. Practice nucleophilic substitution and elimination. 25 mol10/100 = 0. 1) NOTES Q1 Q2 Powerpoint PERIODIC TABLE ISOTOPES Y - - CALCIUM CARBONATE (1. Guided learning with examiner-created videos, interactive activities, and past paper questions to strengthen understanding and boost exam technique. We would like to show you a description here but the site won’t allow us. Knockhardy Publishing has thankfully given me permission to swipe their selection of chemistry PowerPoints and notes (at least I think they have) to put on a ZIP file (here). This in turn is a nucleophile and can react further producing a tertiary amine and, eventually an ionic quarternary amine. The conversion of propene into 1,2-dibromopropane is an example of electrophilic addition elimination free radical substitution nucleophilic substitution Pollution Sulphur in the fuel and sulphides in the ore gives rise to large amounts of sulphur dioxide. 1-4) Powerpoint RATES OF REACTION (2. U. Notes: Definitions Flashcards Detailed Notes Notes from Knockhardy Science: Entha… Dec 22, 2024 · View Mass Spectrometer. What is the sign of DG? d) C6H12(l) + 9O2(g) —> 6CO2(g Explore haloalkane structure, nomenclature, reactions, and uses with this chemistry worksheet. Free essays, homework help, flashcards, research papers, book reports, term papers, history, science, politics This document is an introduction to the chemistry of alkanes presented as a PowerPoint by Knockhardy Publishing. ppt from CHEM INORGANIC at Northwood High School. 1144g 32. 40 0. 1 Write out the correct formula for each of the following compounds. In many cases this information is sufficient to deduce the structure of an organic molecule. CH3 CH3 CH CH2 CH2 CH3 CH CH3 THE ANSWERS ARE ON THE NEXT SLIDE CH2 CH3 CH2 CH2 CH CH3 CH3 CH2 CH3 CH3 CH CH2 CH3 I. This topic is included in A Level Paper 1 and Paper 3 for OCR (A) Chemistry. carbon dioxide OTHER EXAMPLES BrF5 BOND PAIRS 5 LONE PAIRS 1 ‘UMBRELLA’ ANGLES 90° <90° F F F F Br F F F F F Br F BrF3 BOND PAIRS 3 LONE PAIRS 2 ’T’ SHAPED ANGLE <90° F F Br F F F Br F SO42- O S O- O- O O S O- O- O BOND PAIRS 4 LONE PAIRS 0 TETRAHEDRAL ANGLE 109. This covers a variety of substituted and The change must be all due to [E] ANSWER RATE EQUATION QUESTIONS [E] / mol dm-3 [F] / mol dm-3 Rate / mol dm-3 s-1 Expt 1 0. On Studocu you find all the lecture notes, summaries and study guides you need to pass your exams with better grades. com © 2011, 2016 Knockhardy Publishing and Jonathan Hopton Formulae and equations F321 7 ANSWERS TO QUESTIONS Q. This in turn can react further producing a tertiary amine and, eventually an ionic quarternary amine. Free energy changes, DG, give a better picture. ChemGym Revision quizzes for A level Chemistry, grouped by exam board and topic. P. The module references are for the AQA and OCR examinations but the material applies equally well to other specifications. htm ATOMIC STRUCTURE (1. uk knockhardy. uk Free essays, homework help, flashcards, research papers, book reports, term papers, history, science, politics AN INTRODUCTION TO THE CHEMISTRY OF HALOALKANES KNOCKHARDY PUBLISHING 2015 SPECIFICATIONS KNOCKHARDY PUBLISHING THE CHEMISTRY OF HALOALKANES INTRODUCTION This Powerpoint show is one of several produced to help students understand selected topics at AS and A2 level Chemistry. This topic is included in AS Paper 1 and Paper 2, and A Level Paper 1, Paper 2 and Paper 3 for OCR (B) Chemistry. H, O and F are useful as they are commonly found in many species. As is expected, the boiling points are higher than the melting points. (PH2)3 Substituting in the expression gives Kp = 1. 1. some salts dissolve readily in water and the temperature of the solution drops Summary notes, definitions, flashcards, past exam questions by topic for CAIE Chemistry International AS and A-Level Organic Chemistry AN INTRODUCTION TO BONDING A guide for A level students KNOCKHARDY PUBLISHING 2008 SPECIFICATIONS BONDING INTRODUCTION This Powerpoint show is one of several produced to help students understand selected topics at AS and A2 level Chemistry. His original rule was based only on this reaction. BALANCING REDOX HALF EQUATIONS 1 Work out formulae of the species before and after the change; balance if required 2 Work out oxidation state of the element before and after the change 3 Add electrons to one side of the equation so that the oxidation states balance 4 If the charges on the species (ions and electrons) on either side of the equation do not balance then add sufficient H+ ions to Aug 21, 2012 · ENTROPY & FREE ENERGY A guide for A level students 2008 SPECIFICATIONS KNOCKHARDY PUBLISHING ENTHALPY CHANGES INTRODUCTION This Powerpoint show is one of several produced to help students understand selected topics at AS and A2 level Chemistry. Use code PMTODOct25 at checkout to claim your discount. ANSWERS TO QUESTIONS Q. KNOCKHARDY PUBLISHING produces notes and other resources for AS and A2 Level Chemistry. It introduces key definitions of oxidation and reduction in terms of electron transfer and gain/loss of oxygen and hydrogen. The energy required to remove one mole of electrons (to infinity) from the one mole of gaseous atoms to form one mole of gaseous positive ions. Thanks to Jonathan Hopton for providing the Knockhardy Science notes. 80 1. 2 10/40= 0. Contact Knockhardy Publishing: knockhardy. A. An alternative method involves the initial breaking of the C-X bond to form a carbocation, or carbonium ion, (a unimolecular process - SN1 mechanism), which is then attacked by the nucleophile. 1. 32 No 3 Expts 2&3 [E] is constant [F] is x 1. 1-2) Powerpoint WATER (3. 1) Powerpoint STRUCTURE & BONDING (2. The answers are given first, and the contestants supply the questions. 2288g Q. 5° ANSWERS ON moles = mass molar mass - KnockHardy moles = mass molar mass - KnockHardy SHOW MORE ePAPER READ DOWNLOAD ePAPER TAGS moles volume molar calculate formula relative molecular knockhardy molecules convert www. 73 x 10-14 Pa-2 THE END FURTHER TOPICS ON CHEMICAL EQUILIBRIUM ©2015 JONATHAN HOPTON & KNOCKHARDY PUBLISHING * * Explain your answers with a mechanism. What is the sign of DG? d) C6H12(l) + 9O2(g) —> 6CO2(g 3. Apr 5, 2016 · Knockhardy I already give you a large amount of different sources on the material to be learned, but if you ever feel you need more help for conceptualization (understanding’) then really these three websites should do the job perfectly. 1 mol Knockhardy Publishing 4/1= 4 mol4/2 = 2 mol Amines worksheet Answer Grade 12 - Free download as PDF File (. Jump to a topic: [Web Text] | [Lectures] | [Videos] | [Tools] | [Exercises] | [References] Web Text Online Courses: Free and comprehensive resource that is a collection of open college courses that spans videos, audio lectures, and notes Physics Chemistry Class: Free science resource for anyone interested in learning chemistry or physics. NOMENCLATURE How long is the longest chain? MELTING POINT TREND - NON METALS P4 S8 Cl2 Ar relative mass 124 256 71 40 melting point / K 317 392 172 84 Na Mg Al Si P S Cl Ar 3000 2500 2000 1500 1000 500 0 Boiling points tend to be a better measure and show better trends because solids can be affected by the crystal structure as well as the type of bonding. It lists the names of 16 amine or amide compounds and asks the reader to name or draw 8 additional amine or amide structures. 5 Rate unchanged Rate is UNAFFECTED ZERO order wrt F Explanation: Concentration of [F] has no effect on the rate Expts 1&2 Jan 20, 2020 · Energy Chemists use three energy terms, enthalpy,entropy and free energy,to help them make predictions about whether reactions may take place. A double bond repels other bonds as if it was single e. In particular, it follows on from the page about calculations involving solutions. pdf), Text File (. What is the sign of DG? d) C6H12(l) + 9O2(g) —> 6CO2(g) + 6H2O(g) DG = DH - T DS IS A REACTION SPONTANEOUS? What is the sign of the entropy change in the following reactions ? Give reasons for your decision. Q. 80 0. NOMENCLATURE How long is the longest chain? A comprehensive A-level chemistry presentation on acids, bases, salts, Brønsted-Lowry theory, and reactions. Perfect for High School students. Carbon catenates to form chains and rings, with single, double or triple covalent bonds. e. REDOX A guide for A level students O X I D A T I O N +7 +6 +5 +4 +3 +2 +1 0 -1 -2 -3 -4 R E D U C Website www. dqde3z 3mt b1 meuo 5b2ehbjcb i0euccyc 709yd mbcu n1d 1j1z

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