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The Rate-Determining Step | A-level Chemistry | AQA, OCR, Edexcel
 
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https://goo.gl/31T06Y to unlock the full series of AS & A-level Chemistry videos for the new OCR, AQA and Edexcel specification. In today’s video we’ll look at the rate determining step, namely the slowest step in a reaction. We’ll begin with the factors that affect it and how we can predict the reaction mechanism with its help. Then we’ll proceed to the orders and learn how we can determine how many molecules of each species are involved in the rate determining step. Lastly, we’ll investigate orders and mechanism by looking at the reaction equation and conclude with an exam style question.
Views: 2487 SnapRevise
Rate determining step
 
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Rate determining step can seem difficult to work out. But with this simple explanation you should have no more problems with this exam favourite. Come complete with a cake method too. Take a look to see what I mean!
Views: 21827 Allery Chemistry
Rate Determining Step Exam Questions | A-level Chemistry | OCR, AQA, Edexcel
 
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https://goo.gl/X4V9R4 to unlock the full series of AS, A2 & A-level Chemistry videos created by A* students for the new OCR, AQA and Edexcel specification. This video will focus on: Rate-determining step analogy, Rate determining step, Reaction mechanisms from rate equation, Hydrolysis of chloromethane, Proposing Reaction Mechanism, Validity of Reaction Mechanisms, Exam Questions, Summary.
Views: 357 SnapRevise
Suggesting a mechanism with rate determining step
 
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A quick video showing how you come up with a possible mechanism for a multi step reaction using the rate expression. Avoid those pitfalls. Don't let the exam beat you.
Views: 13882 Allery Chemistry
Rate Determining Step | A-level Chemistry | OCR, AQA, Edexcel
 
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https://goo.gl/syotb7 to unlock the full series of AS, A2 & A-level Chemistry videos created by A* students for the new OCR, AQA and Edexcel specification. This video will focus on: Rate-determining step analogy, Rate determining step, Reaction mechanisms from rate equation, Hydrolysis of chloromethane, Proposing Reaction Mechanism, Validity of Reaction Mechanisms, Exam Questions, Summary.
Views: 242 SnapRevise
AQA A-Level Chemistry - Rate Equations
 
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This video goes through the A2 topic of Kinetics. It deals with orders right through to the calculations involved.
Views: 102236 E Rintoul
Mechanisms and the rate-determining step | Kinetics | Chemistry | Khan Academy
 
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An introduction to mechanisms and the rate determining step. Example of finding rate law of multistep reaction with initial slow step. Watch the next lesson: https://www.khanacademy.org/science/chemistry/chem-kinetics/arrhenius-equation/v/catalysts?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry Missed the previous lesson? https://www.khanacademy.org/science/chemistry/chem-kinetics/arrhenius-equation/v/elementary-rate-laws?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Chemistry channel: https://www.youtube.com/channel/UCyEot66LrwWFEMONvrIBh3A?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
OCR (AQA) A level Chemisty Unit 4 Module 1 - Rate Determining Step
 
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This is an OCR/ AQA lesson on predicting the chain reaction mechanism for equations. Sorry for the video lagging. It's been doing that lately and I don't know how to fix it. As I am a student, If I have mentioned anything wrong, please comment with the correct solution. Also, like and comment if you found this helpful. It's the Youtube community that drives me to make these videos!
Views: 19138 Jsouassou
Determining the rate-determining step in reaction mechanism
 
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Determining the rate-determining step in reaction mechanism
Views: 692 CK-12 Foundation
Rate Determining Step
 
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Chemistry_c-9-10-chem-ener-89.mp4
Views: 2905 Sabaq. Pk
OAT:  Rate Law Sample Problems and Rate Determining Step Explanation
 
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► Optometry Admission Test | Survey of the Natural Sciences | General Chemistry | Chemical Kinetics and Chemical Equilibrium | Chemical Kinetics and Chemical Equilibrium Part 2A ► Lecture Description: - This lecture series examines rates and mechanisms of chemical reactions, as well as chemical equilibrium. Topics covered: unimolecular process, bimolecular process, termolecular process, rate laws of elementary steps, rate determining step, and relating the rate constant. ► Watch more at www.masterthecontent.com | Your career. Our passion. - View complete lessons complete with multiple in-lecture examples - Interactive table of contents makes it easy to search for and jump to specific topics - Interact with instructors ► Connect with us: - https://www.facebook.com/pages/Master-the-Content-OAT-Prep/1494957314093321 - https://twitter.com/MTCtoday - https://plus.google.com/u/0/100536207031817220229/about
Views: 67 Master the Content
GCSE Exam Questions C3 Rates of Reaction 2 Higher OCR
 
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Video takes you step by step through the answer, explaining what the examiner is looking for to achieve full marks. First part of the question does look similar to Rates of Reaction 1 but that is important to note! Questions generally are very similar to each other!
Views: 385 Carmel Manwaring
Orders of Reactions | A-level Chemistry | OCR, AQA, Edexcel
 
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https://goo.gl/i1CTT4 to unlock the full series of AS, A2 & A-level Chemistry videos created by A* students for the new OCR, AQA and Edexcel specification. This video will focus on: Rate of Reaction, Orders of Reagents, Orders of Reactions, Calculating K, Overall orders, Summary.
Views: 88 SnapRevise
Steady-State Approximation vs Rate-Determining Step
 
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Compares the rate expression obtained from the steady-state approximation (part 1) to the expression from the rate-determining step assumption. Made by faculty at the University of Colorado Boulder, Department of Chemical & Biological Engineering. Check out our Kinetics/Reactor Design playlists: https://www.youtube.com/user/LearnChemE/playlists?view=50&flow=list&shelf_id=7 Are you using a textbook? Check out our website for videos organized by textbook chapters: http://www.learncheme.com/screencasts/kinetics-reactor-design
Views: 7727 LearnChemE
Rates and Orders of Reactions Exam Questions | A-level Chemistry | OCR, AQA, Edexcel
 
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https://goo.gl/R9xZTH to unlock the full series of AS, A2 & A-level Chemistry videos created by A* students for the new OCR, AQA and Edexcel specification. This video will focus on: Rates and Orders of Reactions Exam Questions.
Views: 29 SnapRevise
Solving Hardy Weinberg Problems
 
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Paul Andersen shows you how to solve simple Hardy-Weinberg problems. He starts with a brief description of a gene pool and shows you how the formula is derived. He then shows you how to solve a couple of sample problems. Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License
Views: 842782 Bozeman Science
Complex Ions Exam Questions | A-level Chemistry | OCR, AQA, Edexcel
 
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https://goo.gl/axB5SP to unlock the full series of AS, A2 & A-level Chemistry videos created by A* students for the new OCR, AQA and Edexcel specification. This video will focus on: Complex Ions Exam Questions.
Views: 65 SnapRevise
Mechanism of reaction and Rate determining step : LN -6 CLASS XII CHEMICAL KINETICS CHEMISTRY
 
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Our aim is to provide quality education free of cost. With this vision, we are providing COMPLETE FREE VIDEO lectures ,for students preparing for IIT JEE,PMT,Class 12th,Class 11th and other classes. Your suggestions are always welcome if any topics ,concepts missed out in our lectures notes. Subscribe our channel update yourself and keep learning !!!!!. Your positive criticisms and valuable suggestions should enable to refine the video lectures further on..
Views: 838 Smart learning
Chemical Kinetics Rate Determining Step
 
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Video demonstration illustrating the rate determining step of a reaction using funnels of different sizes
Views: 12374 ktokln
Rate-Concentration Graph | A-level Chemistry | AQA, OCR, Edexcel
 
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https://goo.gl/31T06Y to unlock the full series of AS & A-level Chemistry videos for the new OCR, AQA and Edexcel specification. In this video we’ll look at the rate-concentration graphs. We’ll begin with the definition of the initial rate and look at how to determine in order to produce r-c graphs. We’ll continue with the zero, first and second orders and investigate the graphs they produce. Then we’ll look at first order graphs and learn how we can find the value of the rate constant. In conclusion, we’ll tackle an exam style question.
Views: 526 SnapRevise
Iodine Clock - Measuring the rate of a reaction by initial rate
 
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I want to help you achieve the grades you (and I) know you are capable of; these grades are the stepping stone to your future. Even if you don't want to study science or maths further, the grades you get now will open doors in the future. To help you get even better grades I’ve written a lot of e-books, packed full of loads of awesome questions to help you study. Because the best thing you can to is practice. Visit my website for e-books, flashcards and extension questions https://www.primrosekitten.com My exam predictions are just GUESSES!! I don't have any insider knowledge just years of looking at exam papers. Use this as a starting point, but revise EVERYTHING fully. The best way to revise is to get your hands on the past papers and marks schemes (freely available on the exam board website) and look at what questions have been asked and how to answer them. I have lots of notes and exam papers on here to help you. Disclaimer; You should not carry out any of these practical’s without carrying out a full risk assessment of your own first. Just watching these video will not guarantee to get you a good grade, you’ll also need hard work, this is not a quick fix. I am human and I make mistakes, please point out any that you find and there is no need to follow that with a load of abuse. Some of the links in here are affiliate links, where is get a small percentage of any money spent, if you like my channel and want to support my work, clicking these is an easy way to do it. The 'whole of topic in xxx minutes' videos DO NOT comprehensively cover everything you need to know for your exams. it would be impossible to cover 2 years of teaching in under 45 minutes. These should NOT be your only source of revision https://youtu.be/K6d4oOq-pmU xoxox PhET Interactive Simulations University of Colorado Boulder https://phet.colorado.edu Images from; Classroom Core (TpT), Hidesy Clipart (TpT), The Cher Room (TpT), The Triple Point (TpT), Ninja Woman (TpT), The Painted Crew (TpT)
Order of Reaction, Rate Equation and Rate Constant | A-level Chemistry | AQA, OCR, Edexcel
 
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https://goo.gl/31T06Y to unlock the full series of AS & A-level Chemistry videos for the new OCR, AQA and Edexcel specification. In this video we cover the basic reaction concepts. We’ll start off with the rate of a reaction, which is the change of concentration of our reactants or products over time. We’ll continue with the order of the reaction which shows how the change of concentration affects the rate. Then we’ll talk about zero, first and second degree orders and how to calculate the overall order of a rate equation. We then proceed with the rate constant and how to find its units and finally an exam question example.
Views: 1779 SnapRevise
Reaction rates (kinetics)
 
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If you are confused by rate equations, rate constants, reaction orders, rate-determining steps etc, then this is the tutorial for you! Don’t be put off by the length of this video (you don’t have to watch it all in one go!): it is lengthy because the concepts are explained slowly and carefully from the ground up – I make the assumption that you find this topic difficult and may already be confused! I also go ‘off topic’ here and there, venturing into redox chemistry and organic mechanisms. I do this because it is important you develop versatility in the application of concepts and skills from one part of the specification to another (very few exam questions at A-level relate only to a single chapter in the textbook). I cover the basics in this tutorial. In future tutorials, I will go through past exam questions in depth, using them to illustrate and explain selected phenomena (by all means, do make suggestions for future tutorials). The exam questions referred to in this tutorial are: OCR F325, June 2011, Q3; and AQA CHEM4, January 2010, Q3. You do not need these papers to be able to follow this tutorial.
Theoretical, Actual and Percent Yield Problems - Chemistry Tutorial
 
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https://www.thechemistrysolution.com This chemistry tutorial cover the difference between actual, theoreticlal and percent yields and include examples of how to calculate theoretical and percent yields.
Views: 227958 TheChemistrySolution
Stereoisomerism Exam Questions | A-level Chemistry | OCR, AQA, Edexcel
 
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https://goo.gl/LbqQU4 to unlock the full series of AS, A2 & A-level Chemistry videos created by A* students for the new OCR, AQA and Edexcel specification. This video will focus on: Stereoisomerism Exam Questions.
Views: 45 SnapRevise
How To Calculate Theoretical Yield and Percent Yield
 
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This video shows you how to calculate the theoretical and percent yield in chemistry. The theoretical yield is the maximum amount of product that can be produced in a reaction. The percent yield is equal to the actual yield divided by the theoretical yield times 100%. Subscribe: https://www.youtube.com/channel/UCEWpbFLzoYGPfuWUMFPSaoA?sub_confirmation=1 General Chemistry Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&list=PL0o_zxa4K1BV-uX6wXQgyqZXvRd0tUUV0&index=3 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/
Calculating Orders of Reactants | A-level Chemistry | OCR, AQA, Edexcel
 
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https://goo.gl/1sR9Bf to unlock the full series of AS, A2 & A-level Chemistry videos created by A* students for the new OCR, AQA and Edexcel specification. This video will focus on: Rate of Reaction, Orders of Reagents, Orders of Reactions, Calculating K, Overall orders, Summary.
Views: 19 SnapRevise
The Top 3 Tips for Maximising Marks in A-level Chemistry Exams
 
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https://goo.gl/ro65FQ to unlock the full series of AS & A-level Chemistry videos for the new OCR, AQA and Edexcel specification. The Top 3 Tips for Maximising Marks in A-level Chemistry Exams a. Don’t leave any spaces blank i. If you aren’t sure of an answer do not leave the space blank! ii. But a star next to the question/mark the question and move on iii. When you have finished your paper review all the marked questions you were unsure of iv. You may remember something you had previously forgotten! v. If you are still unsure, don’t panic! Make an educated guess, because only a blank space can guarantee you no marks b. Read the Question thoroughly i. It is hugely important to read the entire question ii. Ensure you know which reactants are being used, the units they have and how you are meant to answer the question iii. If the question asks for 2dp make sure you abide to this iv. Underline they key parts of the question if this helps c. Include all your working out i. When doing calculations it is hugely important to include every step of working out ii. The examiner can credit you for using the right calculations even if your numbers are wrong iii. If anything goes wrong in your calculations, you may also be able to get marks for error carried forward
Views: 1673 SnapRevise
Introduction to Oxidation Reduction (Redox) Reactions
 
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This is an introduction to oxidation reduction reactions, which are often called redox reactions for short. An oxidation reduction (redox) reaction happens when electrons are transferred between atoms. A loss of electrons is called oxidation, and we say that atom has become oxidized. A gain of electrons is called reduction, and we say that the atoms has become reduced. The two separate parts (oxidation and reduction) of an oxidation reduction (redox) reaction are called half reactions. Two half reactions can be put together to make the whole reaction. Oxidation numbers are numbers that can be written above atoms to show whether they are gaining or losing electrons.
Views: 1303525 Tyler DeWitt
Reactions of Period 3 Elements Exam Questions | A-level Chemistry | OCR, AQA, Edexcel
 
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https://goo.gl/59KEBs to unlock the full series of AS, A2 & A-level Chemistry videos created by A* students for the new OCR, AQA and Edexcel specification. This video will focus on: Reactions of Period 3 Elements Exam Questions
Views: 104 SnapRevise
Calculating the Rate Constant | A-level Chemistry | OCR, AQA, Edexcel
 
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https://goo.gl/fZiQrs to unlock the full series of AS, A2 & A-level Chemistry videos created by A* students for the new OCR, AQA and Edexcel specification. This video will focus on: Rate of Reaction, Orders of Reagents, Orders of Reactions, Calculating K, Overall orders, Summary.
Views: 37 SnapRevise
Complex Ions and Their Ligands | A-level Chemistry | OCR, AQA, Edexcel
 
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https://goo.gl/v6UDvu to unlock the full series of AS, A2 & A-level Chemistry videos created by A* students for the new OCR, AQA and Edexcel specification. This video will focus on: Introduction to complex ions, Common ligands, Monodentate and polydentate ligands, Octahedral complexes, Shapes of ions with four-fold coordination, Ligands and colour, Chelate effect, Summary.
Views: 904 SnapRevise
The Effect of Temperature on the Rate Constant | A-level Chemistry | AQA, OCR, Edexcel
 
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https://goo.gl/31T06Y to unlock the full series of AS & A-level Chemistry videos for the new OCR, AQA and Edexcel specification. In this video we’ll look at the rate constant k and the effect of temperature on it. We’ll begin with the definition of the rate constant, the factors that affect it and how it affects the rate of reaction. Then we’ll discuss the exponential relationship of temperature and the rate constant. Subsequently we’ll look at the Arrhenius equation and to better understand the temperature dependence of reaction rates. Then, we’ll have a look at Arrhenius plots and highlight the key points and conclude with an exam style question.
Views: 975 SnapRevise
Concentration-Time Graphs | A-level Chemistry | AQA, OCR, Edexcel
 
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https://goo.gl/31T06Y to unlock the full series of AS & A-level Chemistry videos for the new OCR, AQA and Edexcel specification. In this video we study concentration-time graphs. We’ll look at how to find rates using tangent lines drawn against curves. We’ll proceed with explaining what half-life is and how to use it to calculate the order of our reaction in a graph. We’ll then show how to find the rate constant using the half-life we calculated. In conclusion we’ll look at an exam style question.
Views: 516 SnapRevise
Reacting Mass Calculations - GCSE Chemistry
 
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N.B. Higher Tier only Summary video on Reacting Mass Calculations for GCSE Chemistry. Targeted towards EDEXCEL (C2 Topic 6 - part 3 of 4), but suitable for AQA (C2 Topic 3), and other exam boards. Please comment if you have any questions, and subscribe if you find the video useful. Follow on Twitter: https://twitter.com/MrPidgeScience
Views: 6347 MrPidge Science
F325- The rate determing step
 
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This is a revision video on all the key points in the topic about the rate determining step in a mechanism or reaction. This video is part of a playlist for F325 chemistry exam so if you aren't in the playlist on our channel then go to our channel homepage, click playlists and select Chemistry F325 to see the rest in the series :) you can message us any questions you may have in Chemistry whether AS or A2 as well as GCSE either here on youtube or on our Facebook page and we reply with an answer. thank you for watching our video please share around and subscribe :) https://www.facebook.com/pages/Clever-cracker-squared/773151002698096
Views: 45 (clever cracker)^2
Reaction Mechanisms and a Rate-Limiting Step
 
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✅ SUBSCRIBE: https://goo.gl/tYpMcp 👍 Visit our website for help on any subject or test! https://goo.gl/AsjYfS Learn more about reaction mechanisms. Know what they are and how they relate to rate-limiting steps in order to be better prepared for test day. Mometrix Academy is the world's most comprehensive test preparation company. This channel will provide you with videos that will help you learn about many different subjects. ►Mometrix Homepage: http://www.mometrix.com ►Academy Homepage: https://www.mometrix.com/academy/ ►Mometrix Flashcards: http://www.flashcardsecrets.com/ ►Follow Mometrix Academy on Pinterest: https://www.pinterest.com/mometrixacademy/ ►Visit: http://www.mometrix.com/academy/reaction-mechanisms-and-a-rate-limiting-step/
Views: 254 Mometrix Academy
Orders of Reaction | A-Level Chemistry | Tailored Tutors
 
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Orders of Reaction explained in just a few minutes by Rich Warburton from Tailored Tutors. View the full course at http://tailoredtutors.co.uk This video is from The A-Level Chemistry Revision Kit – a super condensed, exam-focused revision and past-paper walkthrough course for AQA, OCR, and Edexcel A-Level Chemistry. Improve a grade GUARANTEED in A-Level Biology, Chemistry, or Maths by using our revision materials. Follow us on instagram for revision tips and behind the scenes stories! https://www.instagram.com/tailoredtutors
Views: 209 Tailored Tutors
Calculating Empirical Formula
 
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Empirical Formula are a popular question on the exams. This video shows a simple method that will allow you to throw out an empirical formula in minutes! Not only that there is a way in which you can turn empirical formula into molecular formula.
Views: 4862 Allery Chemistry
The whole of AQA Physics Paper 1 in only 40 minutes!! GCSE 9-1 Revision
 
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Revision for P1 or paper 1 of your GCSE physics, for 9-1 combined or separate science. To get all the quick-fire questions, Knowledge checklists, key words, equations and units sheets and 190 pages of FREE awesomeness head to my website and download your revision guide https://www.primrosekitten.com/collections Amazon will kindly print it off for you http://amzn.to/2kw8DGb or you can treat yourself to the extended version, http://amzn.to/2g1OdTN with another 100 pages of science questions. These are all available over on TuitionKit http://bit.ly/2yYIxxG where you can schedule your revision videos with a timetable that fits in with your life. AQA Biology Playlist https://www.youtube.com/playlist?list=PL7O6CcKg0HaGnykp12D8yVee_SEQdaEHH AQA Chemistry Playlist https://www.youtube.com/playlist?list=PL7O6CcKg0HaGhn5E_LwNPH69bagsYQaJs AQA Physics Playlist https://www.youtube.com/playlist?list=PL7O6CcKg0HaFYC_J92AxS1pfepJJK8kxt GCSE 9-1 Maths in only 2 hours https://youtu.be/dYPwEyeyPLA I want to help you achieve the grades you (and I) know you are capable of; these grades are the stepping stone to your future. Even if you don't want to study science or maths further, the grades you get now will open doors in the future. TuitionKit allows you to schedule your revision videos, mine and loads of other great YouTubers! http://bit.ly/2yYIxxG To help you get even better grades I’ve written a lot of e-books, packed full of loads of awesome questions to help you study. Because the best thing you can to is practice. Visit my website for e-books, flashcards and extension questions https://www.primrosekitten.com My exam predictions are just GUESSES!! I don't have any insider knowledge just years of looking at exam papers. Use this as a starting point, but revise EVERYTHING fully. The best way to revise is to get your hands on the past papers and marks schemes (freely available on the exam board website) and look at what questions have been asked and how to answer them. I have lots of notes and exam papers on here to help you. Disclaimer; You should not carry out any of these practical’s without carrying out a full risk assessment of your own first. Just watching these video will not guarantee to get you a good grade, you’ll also need hard work, this is not a quick fix. I am human and I make mistakes, please point out any that you find and there is no need to follow that with a load of abuse. Some of the links in here are affiliate links, where is get a small percentage of any money spent, if you like my channel and want to support my work, clicking these is an easy way to do it. The 'whole of topic in xxx minutes' videos DO NOT comprehensively cover everything you need to know for your exams. it would be impossible to cover 2 years of teaching in under 45 minutes. These should NOT be your only source of revision https://youtu.be/K6d4oOq-pmU xoxox PhET Interactive Simulations University of Colorado Boulder https://phet.colorado.edu Music; Something Elated by Broke For Free. From the Free Music Archive, CC BY and Felix Mendelssohn: Songs Without Words by Vassily Primakov, piano From the Free Music Archive, CC BY Images from; Classroom Core (TpT), Hidesy Clipart (TpT), The Cher Room (TpT), The Triple Point (TpT), Ninja Woman (TpT), The Painted Crew (TpT) Shutterstock
Empirical Formula - Chemistry - Science - Top Grade Top Up for GCSE and IGCSE
 
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A secondary education revision video to help you pass your Science GCSE. Let Mr Thornton simplify how to calculate the Empirical Formula of a compound - it's easy when you know how! No unnecessary information, just the stuff you need to know for GCSE Science revision, in a short, sweet video, to make give you a Top Grade Top Up for your GCSE and IGCSE! Try the Snapquiz: http://snapquiz.co.uk/empiricalformula Get the app at: https://play.google.com/store/apps/details?id=com.coraxlabs.snapquiz Download a revision guide for Kindle at http://www.amazon.co.uk/-/e/B01BBTP986 Check my tumblr at http://getthatsci.tumblr.com for cool science news, and my twitter at http://twitter.com/mrthorntonuk for regular updates. Burning Magnesium video via Toms Photos, here: https://www.youtube.com/watch?v=n9RSy_ean3A - video used within the conditions of Fair Use. Please note that this video relates specifically to the AQA specification for exams from 2014, though the concepts covered are relevant to other exam board course specifications too. DISCLAIMER: These videos are a revision guide designed to help students understand the requirements of the GCSE Science course, specifically the course specification(s) mentioned above. Although I say I can "help" students achieve a C grade, this should in no way be interpreted as a binding promise that this will definitely be a student's final grade. I offer expert guidance to try to improve a student's chances, but as there are so many factors beyond my control, I am unable to make any guarantee about the content of any exams or controlled assessments beyond any restatements of the relevant section or sections of the course specification(s). In my experience, a student's final grade is mainly dependent upon the quantity and quality of preparation he or she puts in. All I can do is try to optimise this preparation. In short, no-one can guarantee a grade; I'm just here to help.
Views: 45124 Christopher Thornton
Collision Theory | A-level Chemistry | AQA, OCR, Edexcel
 
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https://goo.gl/31T06Y to unlock the full series of AS & A-level Chemistry videos for the new OCR, AQA and Edexcel specification. In today’s video we cover the definitions of the rate of reaction and collision theory. We’ll present the main factors that affect the rate of a chemical reaction ie temperature, pressure, concentration, surface area and use of catalysts. Moving on we’ll discuss how each factor’s fluctuation influences the rate and why this happens. Concerning the calculation of the rate of reaction, we’ll have a look at the things we can monitor – more specifically the concentration of reactant, the gas volume of products and the mass formed. In conclusion, we’ll solve an exam style question.
Views: 295 SnapRevise
AQA AS Chemistry: Redox Basic Rules
 
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In this lesson I'll be teaching you the basic rules in Redox. This lesson is specifically for AQA AS Chemistry but follows the same principals like in other exam boards. Hope you like this and feel free to comment below to ask questions!
Views: 1784 revisionplace
Redox Reactions: Crash Course Chemistry #10
 
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All the magic that we know is in the transfer of electrons. Reduction (gaining electrons) and oxidation (the loss of electrons) combine to form Redox chemistry, which contains the majority of chemical reactions. As electrons jump from atom to atom, they carry energy with them, and that transfer of energy is what makes all life on earth possible. **Special Thanks to Matt Young at the University of Montana (Geosciences Department, Environmental Biogeochemistry Lab) who helped with the chemical demonstrations.** Oxidation 1:42 Reduction 1:03 Oxidation Numbers 3:29 Redox Reactions 5:59 Oxidation Reactions 6:28 Balancing Oxidation Reactions 7:18 Also thank you to the following chemistry teachers for assistance: James Sarbinoff Rachel Wentz Edi González Lucas Moore Chris Conley Addie Clark Julia Rosinski Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashC... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1920611 CrashCourse
Esters | A-level Chemistry | AQA, OCR, Edexcel
 
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https://goo.gl/31T06Y to unlock the full series of AS & A-level Chemistry videos for the new OCR, AQA and Edexcel specification. In today’s video we’ll look at esters, chemical compounds derived from carboxylic acids. We’ll begin with their formula and continue to explain how they are named after their alcoholic and acidic groups. Then, we’ll highlight how we make esters with a process called esterification which involves the following reactions: carboxylic acid with alcohol and anhydrous acid with alcohol. Subsequently we’ll look at the reagents, the conditions and the products of these reactions and we’ll proceed to the hydrolysis reaction. We’ll look at the acidic and alkaline hydrolysis, more specifically we’ll talk about saponification and production of biodiesel. In conclusion we’ll tackle an exam style question.
Views: 1169 SnapRevise
ELISA test
 
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ELISA assay - This immunological assay lecture explains about the elisa test procedure and principle behind the elisa assay including direct, indirect and sandwich elisa techniques to determine the presence of antigen and antibody in blood sample or serum sample. For more information, log on to- http://www.shomusbiology.com/ Get Shomu's Biology DVD set here- http://www.shomusbiology.com/dvd-store/ Download the study materials here- http://shomusbiology.com/bio-materials.html Remember Shomu’s Biology is created to spread the knowledge of life science and biology by sharing all this free biology lectures video and animation presented by Suman Bhattacharjee in YouTube. All these tutorials are brought to you for free. Please subscribe to our channel so that we can grow together. You can check for any of the following services from Shomu’s Biology- Buy Shomu’s Biology lecture DVD set- www.shomusbiology.com/dvd-store Shomu’s Biology assignment services – www.shomusbiology.com/assignment -help Join Online coaching for CSIR NET exam – www.shomusbiology.com/net-coaching We are social. Find us on different sites here- Our Website – www.shomusbiology.com Facebook page- https://www.facebook.com/ShomusBiology/ Twitter - https://twitter.com/shomusbiology SlideShare- www.slideshare.net/shomusbiology Google plus- https://plus.google.com/113648584982732129198 LinkedIn - https://www.linkedin.com/in/suman-bhattacharjee-2a051661 Youtube- https://www.youtube.com/user/TheFunsuman Thank you for watching the lecture video on Elisa test including direct and indirect Elisa assay.
Views: 419102 Shomu's Biology
Rates of Reactions | A-level Chemistry | OCR, AQA, Edexcel
 
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https://goo.gl/mKSk4w to unlock the full series of AS, A2 & A-level Chemistry Required Practicals videos created by A* students for the new OCR, AQA and Edexcel specification. This video will focus on: Rate of Reaction, Orders of Reagents, Orders of Reactions, Calculating K, Overall orders, Summary.
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AQA A-Level Chemistry - Nucleophilic Substitution
 
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This is a video that runs through the topic of Nucleophilic Substitution.
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AQA A Level Chemistry - Organic Chemistry - Electrophilic Addition Mechanism
 
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AQA A Level Chemistry Organic Chemistry - Electrophilic Addition Mechanism
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