Another option would be a modelling software or website that can tell you the bond enthalpy/length for specific bonds within a molecule. 10. It was then sent off to be marked by James and came back with the mark of 24/24 with glowing comments. Can you please help? IB Survival LLC. Hi, Im not sure I understand the question eggshell colour is due to the presence of pigments rather than Ca2+ ion concentration? If youre interested in getting additional support for your IA, we have a team of Chemistry IA tutors that can help you plan, structure and execute your assignment. Virtual Labs I looked at different alcohols and used these databases: webbook.nist.gov/chemistry/name-ser/ pubchem.ncbi.nlm.nih.gov/ They were pretty neat, and contained most of what I needed. Posted: January 03, 2023. ChemSpider is a free chemical structure database providing fast text and structure search access to over 67 million structures from hundreds of data sources. Using calorimetry to determine whether alcohols with more branching have higher heats of combustion, Comparing the enthalpies of combustion of ethanol, ethanal and ethanoic acid using calorimetry to quantify intermolecular force strength, Using calorimetry to find out which type of nut butter contains most calories, Using calorimetry to investigate how food calories are affected by cooking in unsaturated and saturated vegetable oils. The University subscribes to many other databases in other disciplines that may be of interest to you, see the A-Z Databases website. 9. These include measuring changes in mass, gas released, colour of the solution, pH and conductivity to name a few! Provided by the Royal Society of Chemistry (RSC) ChemSub Online. Determine the activation energy of iodine-clock reaction. Measurement, data processing & analysis (1), 11 & 21. Investigate the factors affecting the colours of transition metal compounds (through the use of a colorimter). 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. 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. IB Chemistry IA Ideas and Research Questions - chemistrytutor.me October 19, 2018 at 2:11 pm - Reply [] Secondly, some . The effect of temperature, pH or salinity on oxygen content could be investigated as one of your IB Chemistry IA ideas. Incorporating IM, TOK, 'Utilization' etc. 13. r/IBO. Prepare and test of buffer solutions. You could investigate how changing the atoms/groups attached to the central atom affects the shape/ bond angles of a molecule. The earlier post I wrote on research questions will hopefully help. The impact of temperature on vitamin C in fruit juice. This exact same report was submitted as a manuscript to Foundations of Chemistry, an international academic journal which provides an interdisciplinary forum in which chemists, biochemists, philosophers, historians, educators and sociologists discuss conceptual and fundamental issues which relate to the `central science' of chemistry. The addition of the one millionth structure to the Cambridge Structural Database (CSD) was an incredible achievement for the whole community. Compare the percentage of vitamin C in various brands of juice. Any simple topic could be used for your Chemistry IA. In contrast, dyes are either liquids or soluble, but can be converted to pigments by precipitation with a metallic salt. The molecular formula of unknown hydrated salts can be calculated using thermal decomposition reactions. For enzyme-catalysed reactions, you could identify at which temperature the enzyme is denatured. You could then work out the percentage yield of the experiment by comparing your experimental yield to the theoretical yield. By There are certain essential criteria that an RQ must meet to guarantee a well-performing IA. Is the hydrolysis of aspirin in the stomach affected by the presence of metal ions? Each of the following example will cover a basic experimental concept and then suggest some adaptions or different perspectives you could take. Investigating the ability of different anhydrous salts to absorb water from organic solvents by measuring cobalt(II) absorbance. Gaining full marks for a databased IA 2014 DP Chemistry (Last exam Nov 2024) Practical scheme of work & IA Internal Assessment Gaining full marks for a databased IA I've made this a free page so that any IB chemistry teacher can access it for educational purposes. Does the charge density of the salt ions affect the partition ratio for caffeine extraction from water with different solvents? The extent to which the rate increases depends on the order of reaction with respect to each reactant. The pigments found in certain substances such as makeup products or coloured foods could also be investigated using paper or thin layer chromatography. 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. 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. You cannot paste images directly. I examined the new IAs for the IBO, and I also developed and lead teacher training workshops for ICT in chemistry. NIST Chemical Kinetics Database Standard Reference Database 17, Version 7.1 (Web Version), Release 1.6.8 Data Version 2023 A . Cookie Notice 4. So chemistry-wise I start with a broad base. IA Information Unit 1 - Equilibrium Unit 2 - Redox Processes Unit 3 - Organic Chemistry Unit 4 - Spectroscopic Identification of Organic Compounds Unit 5 - Option B - Biochemistry Unit 6 - Ontario Curriculum Grade 12 Chemistry IB Exam Preparation IB Chemistry Database Question Bank Class Links Glenview Park S.S. Main Page Google Drive Login 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. The energy content of different fuels can be compared using a. 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. Investigate the enthalpy change of a redox reaction. 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. 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. www.ibchemistrytutors.com avail highly experienced tutors for any given IB Subject. His students consistently achieve top grades, and a high proportion every year progress to study medicine, dentistry, veterinary medicine,. I'm looking for data on the properties of vinyl polymers. You can post now and register later. The database includes liquid-liquid, solid-liquid, and gas-liquid systems. The CSD is used in almost every chemistry department worldwide by universities and pharmaceutical companies. You cannot paste images directly. In your Chemistry IA, being creative for your topic is not a very key criteria. Does the titration temperature affect how accurately the Mr of a hydrated salt can be determined using redox titration? Using back titration to investigate whether the concentration of aspirin from more expensive tablets is higher after 30 minutes than from cheaper ones. The biology IA examples have been marked, following the IB biology IA criteria, by official IB biology IA examiners. 25. My chemistry (SL) class has already begun the Internal Assesment and I've chosen to do a database IA. Investigate a factor influencing retention in paper chromatography of amino acids. | IA Biology HL 7. You could investigate how the rate of reaction increases with increasing temperature, and whether there is an optimum temperature for the reaction. Strangely, despite me thinking that my Chemistry IA was the best out of all my science IAs, it scored the lowest mark among them. Found so much value from your post! Investigate the effect of different sacrificial metals on the rusting of iron. I really want to do a database IA because I'm terrible at lab work and besides, all of our class time for lab experiments is over. Clear editor. Determining the optimum temperature for lipase activity, Using colorimetry to investigate inhibition of salivary amylase by metal ions with different charge density. How do light intensity and temperature affect the stability of unsaturated oils, determined by measuring iodine number? Is the rate of copper purification affected by the voltage? The ideas presented here are exactly that ideas, not research questions. Can aspirin be prepared using microwave heating instead of a water bath? 85% (130) 85% found this document useful (130 votes) 195K views. A free chemical structure database providing fast access to over 25 million structures, properties and associated information. 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. Investigate the rate of adsorption of organic acids on charcoal. 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. which are specifically designed for self study and revision. Can Charles Law be used to accurately determine absolute zero? Database Chemistry IA IB Survival is now part of Lanterna Education Database Chemistry IA chemistry ia internal asseesment database By rawan1408, February 22, 2017 in Chemistry Share Followers 0 Reply to this topic Start new topic rawan1408 Members 1 10 posts Exams: May 2018 Posted February 22, 2017 The energy content of different fuels can be compared. Acid-base titrations can also be used to assess the acidity of fermented foods and drinks such as sauerkraut and kombucha. My second worry is that the whole of the IA assessment has become a ticky box exercise involving passing through hoops that bear little relevance to how chemistry is normally reported. This is a list of ideas only, intended as a source of inspiration for students who are stuck for an idea. IA Chemistry HL 6 The impact of temperature on dissolved oxygen concentration IA Chemistry HL 7 What is the relationship between the temperature of the solution (K) and rate of decomposition (cm3 s -1 ) of carbonic acid (H2CO3) to carbon dioxide (CO2) and water (H2O), and, hence, what is the activation energy (kJ mol-1 ) of this reaction? There is currently much unease and worry by both teachers and students about Individual Scientific Investigations that are based on secondary data. 33. Calculate the Kw for water at different temperatures by measuring its pH. 19. You could compare these two methods to see which gives more accurate results. Below I will attach a PDF of my Chemistry IA (submitted for Chemistry HL). NIST Computational Chemistry Comparison and Benchmark Database. Your link has been automatically embedded. 35. Lots of people are anaemic and have to take iron tablets as a result. Consequently, a well formed Research Question is essential to ensure a high quality IA. Databases. Periodicity & transition metals (1), 3 & 13. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); I'm a fully-qualified teacher, examiner and professional tutor providing online chemistry tuition and resources for GCSE, A Level, IB and university level. I was able to find extensive info on Wikipedia, but I doubt . Investigate factors determining heat of combustion in alcohols. 03 examples of research questions. You could determine the pKa values and pH ranges of natural indicators using. The data collection effort started in 2014 with a trial system of aluminum, magnesium, and silicon (and their binaries and ternary system data). We hope our list has sparked your Chemistry creativity and you are now on your way to developing your Chemistry IA idea. decomposition of sucrose into glucose and fructose. My student wanted to do how peroxides can be a good preservation agent for milk. Could you please elaborate so I can explain him? TIA. 37. Complete with an overview of key aspects of the IA, a rubric for criteria, and lots of Chemistry IA ideas, this guide offers practical advice and insights to help you achieve the best possible mark on your IB Chemistry Internal Assessment. Investigating the effect of fermentation time and temperature on the pH of kimchi using acid-base titration. It'll help reduce work load for both students and teachers, while ensuring students get a deeper understanding and focus on the HL subjects. As long as you twist it in a way, present it in a way to get the correct impression from your teacher and the examiners. Using colorimetry to investigate whether coffee contains more caffeine than tea, Investigating whether solvent polarity affects the mass of caffeine extracted from coffee beans using HPLC. Investigate the catalytic abilities of different transition and metal oxides. Investigate the effect of different ionic salts on the freezing point depression of water. The Rate of Decay of full fat and Skim Milks at Different Temperatures. December 13, 2017 in Chemistry. What are ionic equations and ionic half-equations? 36. 14. 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. Or how does the type of intermolecular bonding present in a fuel affect the enthalpy of combustion? How does fermentation time effect the amount of salt in miso paste, determined via argentometric titration (Volhard method)? For all your other IB Chemistry needs, be sure to visit our IB Chemistry subject page for more resources. Using spectrophotometry to investigate whether the CMC of quaternary ammonium salts is affected by pH. Im interested in a topic having to do with pesticides but the thing is that I am not really sure how to convert it into an actual strong question. The activation energy for a catalysed versus an uncatalyzed reaction can be compared, to see by how much the catalyst lowers the activation energy. There are also some freely available chemical databases on the web. 42. 31. What are good chemistry databases that can be used in the IA? Only 7 pages - it does not feel like 10 hours effort. Display as a link instead, With that out of the way, heres the list: Hello Sir, Fragmentation is a type of chemical dissociation, in which the removal of the electron from the molecule results in ionization. Balancing chemical equations using algebra, Choosing a Chemistry IA Research Question - chemistrytutor.me. Privately organized database; information on chemical substances. 10 Examples of formatting data tables. Determine the percentage of iron in an iron compound by a redox titration. 17. It often is the "make or break" so do ensure to take it seriously. This page has Simulations and resources for high school students. Investigate chemical equilibria (determine Kc for a reaction). Chemistry for Queensland Units 3&4 explores electrolytic cells using carbon electrodes. Notify me of follow-up comments by email. [2] This can take place by a process of homolytic cleavage or homolysis or heterolytic cleavage or heterolysis of the bond. Ive also added James comments at the end of the report. For more information, please see our During the lockdown enforced by the Covid pandemic I decided to investigate the validity of this experimental evidence by looking at the atomic spectra of relevant atoms and ions. Title: The Effect of Changing Solutes on the Conductivity of a Solution Name: Kerry Jacobs Course: IB Chemistry Date: As a potential extension to observing how the rate of reaction increases with temperature, you could find the activation energy for a particular reaction. Reference to Course: Ecology Experimental Studying whether there is a relationship between the primary structure of amylases and pH buffers. The issue I can see to begin with is you have two dependent variables, volatility and smell characteristics. My chemistry teacher hasn't really explained how to do our IA and I'm running out of time. The statements are deliberately broad and, if you decide to use any of these ideas, you should be as specific as you can.
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