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As temperature increases, the rate of reaction increases as the particles have more kinetic energy so collide more often, and these collisions are more likely to result in a successful reaction. Pigments are insoluble coloured compounds used industrially in the colouring of many materials, for example clothes and cosmetic products. IB Chemistry IA Ideas and Research Questions - chemistrytutor.me October 19, 2018 at 2:11 pm - Reply [] Secondly, some . IA Biology HL 7. How is the buffer action of the sodium ethanoate-ethanoic acid system affected by temperature? Powered by Invision Community, IB Survival is now part of Lanterna Education. None of the words variable, dependent, independent and constant appear even once in the assessment criteria. To probe whether water acidity affects the calcium ion concentration measured using EDTA complexometric titration. 'Utilization' - Relationships between topics, Relating Topics 4 & 14 to all the other topics, 3 & 13. Is microscale chemistry a more efficient way to make aspirin in the laboratory? If I do this experiment and I write it as a IA, Will I get higher points? 2 4 comments Best Add a Comment Rayford_Beez 4 yr. ago Depends on what you need it for. Titrating the solution of unknown vitamin C content with iodine solution oxidises the vitamin C and reduces the iodine to iodide ions in a redox reaction. ACS A leading publisher of authoritative scientific information. They depend on it to drive drug discovery projects. 21. This page has Simulations and resources for high school students. VSEPR theory predicts the shape and bond angles of molecules based on the number of bonding and non-bonding pairs of electrons around the central atom. Investigating solid acid catalysis of esterification reactions using infra-red spectroscopy, Using Excel to calculate pI values for peptide and compare with literature values, Modelling the relationship between reaction quotient and equilibrium constant when changing temperature and pressure of the Haber reaction using spreadsheets. This guide is suitable for both Standard Level and Higher Level candidates. The page has two very different functions. In line with the IB Learner Profile, "Act with integrity and honesty". Calculate the Kw for water at different temperatures by measuring its pH. The resulting IA examiner comments are also provided for each chemistry IA. | About us The justification given for choosing the research question and/or the topic under investigation demonstrates personal significance, interest or curiosity. 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The RQ is unfocused and unclear impossible to understand what the aims are, Project is just a series of measurements or a synthesis, rather than an investigation. ChemSpider Synthetic Pages "ChemSpider SyntheticPages is a freely available interactive database of synthetic chemistry. Before the pandemic it is significant that the May 2019 subject report stated only a small proportion of the IAs submitted were based on secondary data from databases - the overwhelming majority were based upon hands-on experimentation. Which factors affect the rate of electrolysis in electroplating metals? How do light intensity and temperature affect the stability of unsaturated oils, determined by measuring iodine number? Compunnel Inc. Clinton, IA4 weeks agoBe among the first 25 applicantsSee who Compunnel Inc. has hired for this roleNo longer accepting applications. 36. Try to look out for topics that you can link to an aspect of your life or something youre particularly interested in to satisfy that personal engagement criteria. 12. Fragmentation is a type of chemical dissociation, in which the removal of the electron from the molecule results in ionization. 50. How does the ethanol concentration vary for different wines when measured using back-titration with dichromate and ferrous ammonium sulfate? ICT in practical work. Your link has been automatically embedded. You could investigate which factors or methods increase the yield of the experiment, for example temperature or method of heating, as one of your IB Chemistry IA ideas. Email : ibeliteacademy@gmail.com Skype : www.ibeliteacademy.com +91-9990664500 , +91-9990664300 Register As TutorRegister As Student Search Menu Online IB Chemistry Tutors IB Chemistry Tutor Online Chemistry Tutor for A Level and IB | Dr Carl Thirsk. Below I will attach a PDF of my Chemistry IA (submitted for Chemistry HL). If you are a student and wish to access these resources, ask your school to subscribe. Periodicity & transition metals (2), 11 & 21. For your privacy and protection, when applying to a job online, never give your social security number to a prospective employer, provide credit card or bank account information, or perform any sort of monetary transaction. For example, does increasing size of an alkyl group attached to the central atom have an effect? Determine the percentage of iron in an iron compound by a redox titration. Record the initial temperature of the water. Investigate an aspect of a simple voltaic cell. Does the charge density of the salt ions affect the partition ratio for caffeine extraction from water with different solvents? Investigating the hydrolysis of sucrose into glucose and fructose using polarimetry, Determining the equilibrium constant at different temperatures for the mutarotation of lactose using polarimetry, Applying Daltons law to study non-ideal gases, To determine the standard molar volume of hydrogen from the reaction between magnesium and HCl using a barometric method. Investigate the speed of neutralisation of antacids from different sources. Investigate the solubility of salts (Ksp values). Find below the assessment criteria used for chemistry independent investigations. Complexometric titration can also be used to measure the hardness of water, so you could look at how the hardness of different brands of mineral waters vary, or if the hardness varies with temperature or pH. InThinking Subject Sites for teachers & their classes, Only teachers can take out free trials or subscriptions to our subject sites at Investigating the bleaching of various food colourings to determine the rate constant. As a potential extension to observing how the rate of reaction increases with temperature, you could find the activation energy for a particular reaction. Do expensive iron tablets contain more iron than cheaper vitamin tablets? The energy content of different fuels can be compared using a. Job DescriptionMust have: Mainframe, Cobol, SAS, CICS Job Title : Mainframe Developer Job Summary :See this and similar jobs on LinkedIn. These ideas have been extracted from our student guide, Chemistry Internal Assessment Standard & Higher Level, written by experienced teacher and author Dave Allen. I am sure IB will consider this in their guidance pack they share with examiners/moderators nearer the time of exam period. Databases. Thank you, Hi, thanks for this nice article! The activation energy for a catalysed versus an uncatalyzed reaction can be compared, to see by how much the catalyst lowers the activation energy. The Internal Assessment (IA) is a mini-research project. Your link has been automatically embedded. Full-Time. I'm looking for data on the properties of vinyl polymers. TIA. All articles are only published after being peer-reviewed and approved by the editorial board. (Hint - there are 4 relations in 3NF form) Points: 8 You can post now and register later. The enthalpy of a specific bond is defined as the amount of energy required to break one mole of the bond in gaseous molecules, calculated as an average value over a range of different molecules. For example, how does the bond enthalpy for the C-H bond vary as the length of the alkane increases? So all in all a mediocre to poor report according to the IB assessment criteria. Legal Finding reliable and complete databases is important to make sure your results are accurate. The questions are not as varied as physics, where you have to apply a concept to various different types of questions. . Using photometry to determine whether charge on the metal ion catalyst influences the rate of reaction between luminol and hydrogen peroxide. 13. r/IBO. Investigate the effect of the length a salt bridge has on the dipped voltage produced by a voltaic cell. 48. Hello Astridde, glad you find the article useful. 2. Although students are only supposed to deal with their own supervisor who is able to comment on the final draft there is nothing to stop students collaborating with other students and there are even websites now where IB teachers offer to help individual students with their IA for the payment of a fee. Incorporating IM, TOK, 'Utilization' etc. CareerBuilder TIP. The. Investigate the effect of solvents in paper chromatography and thin layer chromatography. Packed with tips and hints to help you avoid common errors, the guide will help keep your IA planning and execution on track. The issue I can see to begin with is you have two dependent variables, volatility and smell characteristics. For all your other IB Chemistry needs, be sure to visit our IB Chemistry subject page for more resources. Ive grouped them together according to the main experimental technique or measurement method. Posted 6:53:51 PM. 47. Balancing chemical equations using algebra, Choosing a Chemistry IA Research Question - chemistrytutor.me. Is their a correlation between metal ion charge and wavelength of light absorbed by transition metal complexes?