There is currently much unease and worry by both teachers and students about Individual Scientific Investigations that are based on secondary data. The crushed up indigestion tablet solution is titrated with hydrochloric acid to calculate how much acid the tablet can neutralise, as can be seen. Investigate the rate of adsorption of organic acids on charcoal. 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. Remember! vapour pressure) but smell characteristics you would have to think how you can quantify and measure. 30. Data collection can easily convey to your teacher/moderator how much care Using photometry to determine whether charge on the metal ion catalyst influences the rate of reaction between luminol and hydrogen peroxide. The internal assessment in chemistry on criteria is for 24 marks and has 20% of weightage in the total score. You could compare the experimental values with the actual values, or investigate how different cooking or preparation methods affect the amount of calories in a food. 35. Display as a link instead, You can see my original 7/24 paper online and I've embedded my 24/24 IA report below with the main changes (which are almost all just additions) made in red so you can teach your students how to address the criteria effectively. Only 7 pages - it does not feel like 10 hours effort. PB_19, The earlier post I wrote on research questions will hopefully help. You could even look at both the bond enthalpy and length to see how they change with each other. Paste as plain text instead, Another option would be a modelling software or website that can tell you the bond enthalpy/length for specific bonds within a molecule. You can post now and register later. 29. Vasy Kafidoff. Proteins thermal denaturation using UV light. Investigate whether oxidation of tea / coffee changes its pH. Relating experimental and theoretical values for the lattice enthalpies to charge density of different metal ions, Evaluating different mathematical models for the calculation of pI values of amino acids and comparing to database values, Using molecular modelling to explore the relationship between halogen size and the preference for T-shaped geometry in interhalogen compounds. For example, changing the temperature of the titration reaction, or heating to a higher heat or for a longer period of time in the thermal decomposition reaction. All this secondary data is easily accessible to students on the Internet and the investigation could have been undertaken by a student for their IA. Remember, your IA reports may be a bit different from the past reports due to the type of the data used. I've made this a free page so that any IB chemistry teacher can access it for educational purposes. Investigate an equilibrium position and Le Chateliers principle spectroscopically. Detailed instructions for the experiment can be found. Virtual Labs Full-Time. ACS Investigate the amount of CaCO3 in brown and white eggshells. 32. r/IBO. Is IB chemistry harder than A Level chemistry? Compunnel Inc. Clinton, IA4 weeks agoBe among the first 25 applicantsSee who Compunnel Inc. has hired for this roleNo longer accepting applications. Search for content by subject in the Search field. 9. Posted: January 03, 2023. 17. Investigate a factor influencing retention in paper chromatography of amino acids. Thank you!! LinkedIn, Course for students (First exam May 2025), Short cut to give students access to a page, MC test: Nature of matter & chemical change, Nature of matter & chemical change questions, Covalent structure (2) Shapes & polarity questions, MC test: Further aspects of covalent bonding, Further aspects of covalent bonding questions, MC test: Collision theory & rates of reaction, MC test: Rate expression & reaction mechanisms, MC test: Calculations involving acids & bases, Electrochemical cells (1) (AHL) questions, Electrochemical cells (2) (AHL) questions, MC test: Fundamentals of organic chemistry, Fundamentals of organic chemistry (1) questions, Fundamentals of organic chemistry (2) questions, MC test: Alkanes, alkenes & addition polymers, MC test: Electrophilic addition & electrophilic substitution reactions, Spectroscopic identification of organic compounds, MC test: Spectroscopic identification of organic compounds, Identification from spectra - Question 10, Spectroscopic identification of organic compounds (AHL), MC test: Spectroscopic identification of organic compounds (AHL), Identification from spectra - Question 11, Identification from spectra - Question 12, Identification from spectra - Question 13, Identification from spectra - Question 14, Identification from spectra - Question 15, Identification from spectra - Question 16, Identification from spectra - Question 17, Identification from spectra - Question 18, Identification from spectra - Question 19, Identification from spectra - Question 20. 25. Using Hesss law to calculate a value for the enthalpy of reaction when magnesium burns in steam, Using Hesss law and calorimetry to investigate the relationship between enthalpy of solution, enthalpy of hydration and lattice enthalpy. In 2013 Scerri stated that many teachers were still teaching blatantly wrong chemistry by giving the electron configuration of scandium as [Ar[4s23d1 and provided experimental evidence to support the argument that it should be [Ar]3d14s2. Chemistry IA Criteria Review. books@peakib.com | Tel (UK): +44 (0) 330 113 5644 | More contact details, Your companion to the IB Diploma Programme. Databases. 1. Does storage temperature affect the purity of washing soda crystals, determined using acid-base titration to find waters of crystallisation? []. 38. Education. Volatility can be quantified and measured (e.g. This was partly to offset worries that it is difficult to ensure complete academic honesty. Investigate the % of chlorine in different bleaches or swimming pool water on different days. Could someone please explain how I can use a database for my Chemistry IA? www.ibchemistrytutors.com avail highly experienced tutors for any given IB Subject. So if I do this experiment, I will not see any difference in the protein content. The questions are not as varied as physics, where you have to apply a concept to various different types of questions. ACS A leading publisher of authoritative scientific information. The impact of temperature on vitamin C in fruit juice. The page has two very different functions. 37. I changed the title to make it a question and explained why I was interested in the topic to help with personal engagement, identified the variables and how they were controlled, described the procedure and explained about the source and the uncertainties associated with the data and added fairly meaningless sentences such as There would appear to be no particular ethical or safety concerns inherent in this investigation and one positive advantage is that the lack of primary experimental work makes this a very green chemistry approach etc. 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. Measure the concentration of zinc ions in a dietary supplement. Is the release of ibuprofen from different formulations dependent upon pH and temperature, measured using acid-base titration? 32. Investigating the organometallic reaction between alkyl magnesium halides and propanone (Grignard chemistry), Investigating the effect of halide substituent on the yield of phenacetin, prepared from paracetamol by Williamson ether synthesis, Extracting Oil of Wintergreen and Menthol from Kwan Loong Oil using steam distillation. Your previous content has been restored. Here is list of 50 IB Chemistry IA Ideas. Does the concentration of nitrate ions in soil affect the mass of water that smart polymer hydrogels can absorb? Investigate the factors affecting the colours of transition metal compounds (through the use of a colorimter). 17 pages. The IB chemistry IA is an investigative essay that seeks to explain the chemistry behind common real-world phenomena. Register for a FREE DEMO. One of the biggest challenges facing students taking IB chemistry is coming up with a good Internal Assessment (IA) idea. Investigate the kinetics of the bromine clock reaction to determine the order of reaction. A calorimeter can also be used to work out how many calories are in different types of food and drink. 20. 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. More. 11. If you are interested in medicinal chemistry, you could try synthesising. Determining the optimal solvent and temperature to give highest yield for the synthesis of Dulcin from Tylenol, using titration, Determining the pKb of a base from its half-equivalence point. 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. You could investigate how factors such as the length of fermentation affects the pH of the substance. I sent it without any explanation as to why I was doing it to James Midgley who has produced some excellent webinars and videos on how to achieve a high IA mark particularly using secondary data. An important part of the course which requires 10hrs of work for both HL and SL student. Privacy Policy. 3. Strangely, despite me thinking that my Chemistry IA was the best out of all my science IAs, it scored the lowest mark among them. 21. Facebook Determining the optimum temperature for lipase activity, Using colorimetry to investigate inhibition of salivary amylase by metal ions with different charge density. Provides access to scholarly journals and magazines covering the latest scientific developments. 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. Reference to Course: Ecology Experimental Studying whether there is a relationship between the primary structure of amylases and pH buffers. Does boiling time effect the protein concentration in milk, measured using bicinchoninic acid assay and colorimetry? 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. Any help you can give is appreciated. Found so much value from your post! Investigating the ability of different anhydrous salts to absorb water from organic solvents by measuring cobalt(II) absorbance. Can Charles Law be used to accurately determine absolute zero? Investigate the solubility of salts (Ksp values). It scored 23/24 (which, according to the boundaries of the M20 session, was a 7). The issue I can see to begin with is you have two dependent variables, volatility and smell characteristics. Is microscale chemistry a more efficient way to make aspirin in the laboratory? ChemSpider is a free chemical structure database providing fast text and structure search access to over 67 million structures from hundreds of data sources. A leading publisher of authoritative scientific information. The extent to which the rate increases depends on the order of reaction with respect to each reactant. 37. February 22, 2017 in Chemistry. 23. rawan1408, Investigating the relationship between metal ion charge density and thermal stability using thermal decomposition experiments. Onmy page on History of Internal Assessment I have detailed how the IA assessment has changed over the years. IB Survival LLC. I have found a few databases, and I've already read the exemplars posted on the IB site (there were only 2, I wish there were more). Clear editor. What the IA is about within HL Chemistry? Assessing the yield of aspirin when prepared using microwave heating compared to conventional heating method, Using thin-layer chromatography to investigate the synthesis of the antiseptic 2,4,6-tricholorohydroxybenzene, Comparing the products from the nitration of benzene, phenol and benzaldehyde using infra-red spectroscopy, The effect of reaction temperature on the yield from esterification reactions, The effect of reaction temperature on product purity when synthesising Oil of Wintergreen assessed using TLC. 20 Topic Ideas to Get You Started on your Chemistry IA 1. 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. - STEP 1 Research into possible Research Questions and find 2-4 sources - STEP 2 do pre-testing as needed - STEP 3 submit your RESEARCH PLAN (with sources) - STEP 4 collect data - STEP 5 Write your. What I realised after I had written it up for publication in Foundations of Chemistry was that effectively I had completed an individual scientific investigation using secondary data. Does catalase or potassium iodide lower the activation energy most in the famous elephants toothpaste reaction? The effect of temperature, pH or salinity on oxygen content could be investigated as one of your IB Chemistry IA ideas. Upload or insert images from URL. Because I wrote the article, I cannot really assess it in a subjective or unbiased way but it seems to me that James' mark is spot on. 16. Consequently, a well formed Research Question is essential to ensure a high quality IA. It was then sent off to be marked by James and came back with the mark of 24/24 with glowing comments. A polarimeter is a device that measures the rotation of polarised light as it passes through an optically active fluid. IB Chemistry IA ideas 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. | Does vitamin C act as a radical scavenger and slow down the rate of free radical substitution? The biological oxygen demand (BOD) is a measure of water quality and can be calculated by observing how the oxygen content changes over the course of five days. This work can be on primary or secondary data but well analyzed and critically evaluated. There is a variation of CaCo3 between the bases. It is up to the high standard of Foundations of Chemistry. The amount of iodine solution required for a complete oxidation of the vitamin C can be used to work out the vitamin content, which can be compared to the stated values. Please make sure you show your idea to your teacher before you get too involved in the planning stages as there may be a very good reason why you are unable to carry out your idea. Paste as plain text instead, Example IB Chemistry IA. 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. 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. If you continue to use this site we will assume that you are happy with it. How do light intensity and temperature affect the stability of unsaturated oils, determined by measuring iodine number? So all in all a mediocre to poor report according to the IB assessment criteria. I'm not asking for a research question, but could you give me some tips on how to turn ideas into viable research questions. Provided by the Royal Society of Chemistry (RSC) ChemSub Online. This can be investigated using an acid-base titration. 2014 DP Chemistry (Last exam Nov 2024) Practical scheme of work & IA. For example, how and why does the enthalpy of combustion change as the length of the carbon chain increases in a homologous series? Posted 6:53:51 PM. Below you can explore some examples of such IA topics that are sure to score highly on the IA criteria! 31. An example would help me understand (doesn't have to be chemistry). Currently the May 2021 are due to proceed on a curtailed basis (Paper 3 and the Group 4 project have been discarded) but in the United Kingdom the summer 2021 A level examinations have already been cancelled so it may well be that in some or all countries the IB exams may suffer a similar fate. All you have to do for chemistry is follow the syllabus, and you will be absolutely fine. Does thermal decomposition allow unknown salts to be identified? Furthermore, you could then predict a reaction mechanism for the reaction and compare this with literature findings. Will conclusion affect my point. Investigating the bleaching of various food colourings to determine the rate constant. Investigating the effect of storage temperature on the sulfite concentration of Rioja using iodometric titration. Over 50 Chemistry Simulations, from Acid-Base Solutions to Wave on a String. Online Chemistry Tutor for A Level and IB | Dr Carl Thirsk. Iodine is an essential part of our diet and helps synthesise thyroid hormones to regulate metabolism. Investigate factors affecting electrolysis. How is the buffer action of the sodium ethanoate-ethanoic acid system affected by temperature? 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. Measure the concentration of zinc ions in a dietary supplement. Notify me of follow-up comments by email. By Maybe it is time for the chemistry practical assessment to be decoupled from the other two sciences to reflect more accurately what real chemists do. ICT in practical work. Pigments are insoluble coloured compounds used industrially in the colouring of many materials, for example clothes and cosmetic products. Investigate how the hardness of water affects the solubility of salts. Which is the best catalyst for hydrogen peroxide decomposition, potato, liver, manganese oxide or potassium permanganate? 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! 28. $131,178 Yearly. 19. Secondly, some of the projects below are just plain bad for reasons Ive outlined in my post about research questions. The resulting IA examiner comments are also provided for each chemistry IA. Any IA lab should be thoroughly risk assessed by yourself and your teacher should check this risk assessment. We wont spam you with irrelevant messages or pass your details to other companies, and you can unsubscribe at any time by following the instructions in any email we send. As biosciences become increasingly informatic in nature, knowing how to access, use and interpret is a valuable skill. Hi, I wanted to determine protein content of something over different cooking time but I did some research on the google and I found that proteins are not affected by heating. In contrast, dyes are either liquids or soluble, but can be converted to pigments by precipitation with a metallic salt. The justification given for choosing the research question and/or the topic under investigation demonstrates personal significance, interest or curiosity. My student wanted to do how peroxides can be a good preservation agent for milk. 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. Investigate the effect of pH on the rate of rusting. 26. Investigate a weak acid-strong base titration (determine the Ka of a weak acid). Which endothermic reactions are good for use in cooling packs, investigated with simple calorimetry? To help with this, Ive produced a list of chemistry IA ideas, together with some example Research Questions (RQ). Can aspirin be prepared using microwave heating instead of a water bath? Sitemap. My only problem is that I'm having trouble turning my ideasinto reasonable research questions. Chemistry Databases. Check them out by clicking here! Obviously this is not an official IB mark and the comments are not official IB feedback but James has a good record of marking according to the IB's standard. It is mostly about how you treat your topic and how you present it. Within the finish, there are many colours produced depending on the paint company from 100 to 10000. How is the rate of SN2 reactions affected by the carbon-halogen bond strength? [] Dont just copy an existing IA you found online, such as one from my list here! As you increase the concentration of a reactant (or the pressure of a gaseous reactant), the rate of reaction increases as the reacting particles are closer together resulting in more collisions. Search chemicals by name, molecular formula, structure, and other identifiers. It does not consider the identity of the atoms or groups attached to the central atom however, and this does have an effect. If I do this experiment and I write it as a IA, Will I get higher points? and write-up a Chemistry IA that will . Investigate the rate of evaporation of a liquid with respect to its temperature. 6. Or how does the type of intermolecular bonding present in a fuel affect the enthalpy of combustion? Students are expected to perform at least one exercise using a database in order to fulfil Aims 6 & 7 in the Guide. Determining the activation energy of 3 different glowstick reactions by measuring light output at different temperatures. IA Biology HL 6. 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. Pasted as rich text. InThinking Subject Sites for teachers & their classes, Only teachers can take out free trials or subscriptions to our subject sites at Join. also sounds too simplistic to me as you can quite easily predict that relationship. Using microscale chemistry to determine the relationship between solubility product and temperature for different metal halides. What is the iodine number of different cooking oils? Which type of eggshells contain most calcium as measured using precipitation reactions? Databases in IB Bio Trying to choose a topic for your IB Chemistry IA can be difficult, especially when youre limited to a school laboratory and not much time! CareerBuilder TIP. The assessment criteria are set out clearly in the guide but the interpretation of how to apply them is based upon what is written in several pages of the subject reports and the instructions that are given to moderators. Atoms with atomic number less than 36 (Krypton) with only . Is the oxygen level in my local canal enough to satisfy the biological oxygen demand (BOD) for fish? Over 50% of my students achieved a 6 or 7 in their IA component. Measurement, data processing & analysis (1), 11 & 21. Determine the solubility of an ionic salt in water by plotting a solubility curve and compare the solubility with its literature value. A free chemical structure database providing fast access to over 25 million structures, properties and associated information. What is the activation energy for the oxidation of luminol by hydrogen peroxide? IB Chemistry IA Ideas and Research Questions, 50+ Chemistry IA Ideas with Research Question Examples, One of the biggest challenges facing students taking IB chemistry is coming up with a good Internal Assessment (IA) idea, Chemistry IA topics on electrochemistry (voltaic cells, voltammetry, electrolysis), Chemistry IAs involving microscale chemistry, IA topics using photoconductivity (measuring light intensity), IAs involving polarimetry (measuring optical rotation), Chemistry IA topics involving redox titration, Chemistry IA topics based around synthesis, Limiting and excess reactants in chemistry, Easy way to balance chemical equations for GCSE. Please let me know. 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. Indigestion is caused by acid in the stomach, which can be neutralised with indigestion tablets. 36. We provide the following chemistry databases: CSD - a Cambridge Structural Database system and related Mercury, ConQuest, SuperStar, IsoStar, and Mogul programs; RTAM - a bibliographic database of relativistic calculations on atoms and molecules; Free databases on the web. The biology IA examples have been marked, following the IB biology IA criteria, by official IB biology IA examiners. For all your other IB Chemistry needs, be sure to visit our IB Chemistry subject page for more resources. You cannot paste images directly. Hope it helps. Investigate the factors affecting the rate of reaction between iodine and propanone. To investigate whether different iron complexes used in vitamin tablets are affected by pH using manganate(VII ) titration. I've chosen a database topic, but I don't actually know where/how to find said databases. The best IAs usually take a simple method and explore it from a unique perspective, in order to avoid complications whilst still allowing for an in-depth investigation that will secure those personal engagement marks. Does the critical micelle concentration of Triton and Tergitol type surfactants affect their detergent ability? 41. Powered by Invision Community, IB Survival is now part of Lanterna Education. Research questions are difficult to find and formulate where enough data from different sources can be utilized. Determine the enthalpy change of the thermal decomposition of sodium hydrogen carbonate. How is the fluorescence wavelength of fluorophores present in tumeric affected by solvent polarity measured by spectroscopy? Determine the percentage of iron in an iron compound by a redox titration. You still need both a theoretical model and data, even if you are not carrying out an experiment. 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. Acid-base titrations can also be used to assess the acidity of fermented foods and drinks such as sauerkraut and kombucha. The journal also emphasizes mathematical articles devoted to the mathematical treatment of questions arising in physics, chemistry, biology, engineering and all applied sciences. Are there more waters of crystallisation in cheap washing soda? By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising.
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