49. Investigate the speed of neutralisation of antacids from different sources. 20. Finding reliable and complete databases is important to make sure your results are accurate. 3. The amount of phosphate present in soil samples can be determined using a. You can use it to show your students how to write their IA report based upon secondary data so that it fulfils all the assessment criteria. I am sure IB will consider this in their guidance pack they share with examiners/moderators nearer the time of exam period. Investigate variables affecting water absorption polymers. Investigate the kinetics of the bromine clock reaction to determine the order of reaction. and our document.write(new Date().getFullYear()) InThinking Search chemicals by name, molecular formula, structure, and other identifiers. Designed by Harvard tutors to allow you exceed beyond expectations. Data collection can easily convey to your teacher/moderator how much care Find below the assessment criteria used for chemistry independent investigations. Posted 6:53:51 PM. West Des Moines, IA. 13. r/IBO. My only problem is that I'm having trouble turning my ideasinto reasonable research questions. I thought it would be instructive to send my seven page report to an experienced IA moderator to see what mark it would achieve when marked according to the IB internal assessment criteria. Urease is found naturally in soil, so urea is used as a fertiliser to release ammonia. These include measuring changes in mass, gas released, colour of the solution, pH and conductivity to name a few! What is the activation energy for the oxidation of luminol by hydrogen peroxide? Only 7 pages - it does not feel like 10 hours effort. ChemistryViews is the online science news magazine of Chemistry Europe. Your previous content has been restored. Education. A redox titration can be done to see how much potassium manganate(VII) solution is needed to titrate a solution of crushed up iron tablets, and therefore work out how much iron there is in the tablets. Soil also contains other important elements such as nitrogen and iron, which can also be tested for using experimental techniques. If you are looking for a bit of inspiration to kick your Chemistry brain into gear, check out our list of 50 ideas for your IB Chemistry IA below. Many students are unsure how to relate the IB chemistry topics to a real-world situation or problem that they can investigate. Record the initial temperature of the water. etc. Periodicity & transition metals (1), 3 & 13. Compare the percentage of vitamin C in various brands of juice. 27 days ago. A polarimeter is a device that measures the rotation of polarised light as it passes through an optically active fluid. You cannot paste images directly. 3. I examined the new IAs for the IBO, and I also developed and lead teacher training workshops for ICT in chemistry. SCH 4UW. Please and Thank you! Successful completion of a curriculum leading to a bachelor's degree in an appropriate scientific field, e.g., engineering technology, physics, chemistry, architecture, computer science, mathematics, hydrology, or geology, may be accepted in lieu of a bachelor's degree in engineering, provided that you have at least 1 year of professional . 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. As a potential extension to observing how the rate of reaction increases with temperature, you could find the activation energy for a particular reaction. You could investigate how factors such as the length of fermentation affects the pH of the substance. Online Chemistry Tutor for A Level and IB | Dr Carl Thirsk. Does the lattice enthalpy of different salts affect how effectively they melt ice? Paste as plain text instead, Quickly find chemical information from authoritative sources. Can aspirin be prepared using microwave heating instead of a water bath? Investigate the amount of CaCO3 in brown and white eggshells. 33. Does boiling time effect the protein concentration in milk, measured using bicinchoninic acid assay and colorimetry? Is the hydrolysis of aspirin in the stomach affected by the presence of metal ions? So if I do this experiment, I will not see any difference in the protein content. The resulting IA examiner comments are also provided for each biology IA. Investigate a factor influencing retention in paper chromatography of amino acids. A more thorough procedure can be found. 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Quick disclaimer; my Biology IA was a database IA, so the majority of the tips I'll share in this post will specifically relate to writing a successful database IA. You could investigate how temperature affects the equilibrium constant between the two forms using polarimetry, as the shift in equilibrium will cause a change in the optical rotation called mutarotation. Periodicity & transition metals (2), 11 & 21. 31. All you have to do for chemistry is follow the syllabus, and you will be absolutely fine. Investigate the enthalpy of neutralisation of different acid / base concentrations. Furthermore, you could then predict a reaction mechanism for the reaction and compare this with literature findings. Upload or insert images from URL. The Internal Assessment (IA) is a mini-research project. Investigate the rate of evaporation of a liquid with respect to its temperature. Determining the activation energy of 3 different glowstick reactions by measuring light output at different temperatures. IB Chemistry IA Ideas and Research Questions - chemistrytutor.me October 19, 2018 at 2:11 pm - Reply [] Secondly, some . 7. 28. Another option would be a modelling software or website that can tell you the bond enthalpy/length for specific bonds within a molecule. What is the pKa value for natural indicators obtained from peonies, poppies and red cabbage, determined using colorimetry? Now many students are having to cope with an investigation based on secondary data. We use cookies to ensure that we give you the best experience on our website. Investigate variables affecting water absorption polymers. You could investigate how changing the atoms/groups attached to the central atom affects the shape/ bond angles of a molecule. ( YouTube video) Related Guides for Databases SciFinder-n Your link has been automatically embedded. Is microscale chemistry a safe and convenient way to do reactions with halogens in a high school environment? (Hint - there are 4 relations in 3NF form) Points: 8 Some natural pigments can be used as indicators as they change colour at certain pH values, for example the pigment curcumin found in turmeric. 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. Does water temperature affect the caffeine concentration of tea? With the cancellation of the May 2020 exams instead of the IA component counting for only 20% of the final mark it effectively became the main basis upon which grades were awarded. Hello, Ive been struggling for a while to come up with a type of question to be able to do an IA with. The iodine concentration of iodinated salt can be calculated in a redox titration by titrating the iodine with sodium thiosulphate solution to reduce it to iodide ions, as can be seen. By plotting a graph of 1/Temperature against the natural log of the rate constant (k), the gradient can be used to find this value. 50. If youre interested in getting additional support for your IA, we have a team of Chemistry tutors that can help you plan, structure and execute your assignment as well as help with your exams! ChemistryViews ChemistryViews is the online science news magazine of Chemistry Europe. Databases. What I've been taught is that you should have a clear-cut independent and dependent variable, where you would an investigating the cause-effect relationship between them. You could investigate how the rate of reaction increases with increasing temperature, and whether there is an optimum temperature for the reaction. Proteins thermal denaturation using UV light. Does cooking temperature affect the concentration of ethanoic acid in vinegar, measured by acid-base titration? Database Systems: Design Implementation and Management (Carlos Coronel; Steven Morris) Financial Accounting: an Integrated Approach (Ken Trotman; Michael Gibbins) . I was able to find extensive info on Wikipedia, but I doubt . Database based Exploring how algae samples' primary productivity changes with temperature, algae concentration, other aquatic plants, turbidity, salinity, nutrients, and other factors. Strangely, despite me thinking that my Chemistry IA was the best out of all my science IAs, it scored the lowest mark among them. 1. The addition of the one millionth structure to the Cambridge Structural Database (CSD) was an incredible achievement for the whole community. Does wavelength of UV light affect the products obtained from the reaction between ethane and chlorine, determined using NMR spectroscopy? Is IB chemistry harder than A Level chemistry? 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. Packed with tips and hints to help you avoid common errors, the guide will help keep your IA planning and execution on track. This is explained further. The database includes liquid-liquid, solid-liquid, and gas-liquid systems. Databases in IB Bio The questions are not as varied as physics, where you have to apply a concept to various different types of questions. If you have an account, sign in now to post with your account. This page has Simulations and resources for high school students. Investigating the relationship between metal ion charge density and thermal stability using thermal decomposition experiments. Students are expected to perform at least one exercise using a database in order to fulfil Aims 6 & 7 in the Guide. It also shows that the IB assessment criteria bear little relationship to the criteria used to judge the worth of a peer-reviewed report for publication in an internationally recognised academic chemistry journal. Investigate the effect of pH on the rate of rusting. Here are some more of our posts you might find useful: We have a team of awesome tutors ready to help you ace the IB. It is up to the high standard of Foundations of Chemistry. The earlier post I wrote on research questions will hopefully help. The marks broke down as: Personal engagement 1/2; Exploration: 2/6; Analysis: 2/6; Evaluation: 0/6 and Communication: 2/4. How does pH affect the colour of Sudan IV produced from a diazotisation reaction? Investigate the hardness of water from different local sources. You could use a database to look for trends in for example: solubility, enthalpy of combustion, melting and boiling points, and there is a list of possible databases here. There are several reasons why you shouldnt do this: Firstly, one of the internal assessment criteria is Personal Engagement. Electroplating is an application of electrolysis which uses an electrical current to reduce metal cations in solution so that a thin layer of metal is deposited onto a metal object. Pasted as rich text. The ideas presented here are exactly that ideas, not research questions. Any IA lab should be thoroughly risk assessed by yourself and your teacher should check this risk assessment. A mass change and signs of electroplating were observed. Vasy Kafidoff. Investigating the kinetics of the reaction between potassium iodide and lead nitrate using microchemistry, Modelling bond angles in organic compounds and comparing them to actual values using ACD ChemSketch, The effect of halogen electronegativity and atomic radius on bond angles in halogenoalkanes determined using CambridgeSoft Chem3D software.