database ia chemistry10 marca 2023
Uploaded by IB Screwed. 2014 DP Chemistry (Last exam Nov 2024) Practical scheme of work & IA. Detailed instructions for the experiment can be found. Sitemap. 27 days ago. Its aim is to give examples showing how different topics in the IB chemistry syllabus can be linked to real-world investigations. 48. Investigating the relationship between metal ion charge density and thermal stability using thermal decomposition experiments. Does the amount of aspirin in different brands accurately match the label? Scribd is the world's largest social reading and publishing site. 35. There is a variation of CaCo3 between the bases. 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. If you are interested in medicinal chemistry, you could try synthesising. Search for content by subject in the Search field. Does the critical micelle concentration of Triton and Tergitol type surfactants affect their detergent ability? 17. Like many IB students, you may be finding it challenging to think of an idea that a) you are really interested in and b) is feasible for you to complete given the time and resources available. 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. 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. For enzyme-catalysed reactions, you could identify at which temperature the enzyme is denatured. Investigate the speed of neutralisation of antacids from different sources. Thank you!! Finding reliable and complete databases is important to make sure your results are accurate. Database Systems: Design Implementation and Management (Carlos Coronel; Steven Morris) Financial Accounting: an Integrated Approach (Ken Trotman; Michael Gibbins) . 24. Cookie Notice These include measuring changes in mass, gas released, colour of the solution, pH and conductivity to name a few! For example, by how much does the enzyme urease lower the activation energy for the hydrolysis of urea into ammonia and carbon dioxide. The. also sounds too simplistic to me as you can quite easily predict that relationship. Remote username and password Rdale281, Rdale#281, https://rdale.libguides.com/c.php?g=1105798, 4148 Winnetka Ave. N. | New Hope, MN 55427. Investigate the effect of soil pH on the chlorophyll content in plant leaves. Proteins thermal denaturation using UV light. Secondly, some of the projects below are just plain bad for reasons Ive outlined in my post about research questions. 4. Shoul I do this experiment? You could investigate how different factors affect the percentage yield of soap produced. Investigate variables affecting water absorption polymers. | 8. Redox titration can also be used to determine the vitamin C content of foods and drinks. 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. These concern developing experimental and investigative scientific skills including the use of current technologies and the . constant? A search through any reputable academic chemistry journal will show that articles are almost never formatted this way. Reaxys -Web access to Beilstein/Gmelin and patent database; java structure editor; all users must create . Quickly find chemical information from authoritative sources. Investigate the kinetics of the bromine clock reaction to determine the order of reaction. This can be investigated using an acid-base titration. Chemistry Library List of useful databases These databases are of particular interest for chemists. TIA. Is the enthalpy of neutralisation for different acids and alkalis aways 55 kJ mol per mole? Does cooking time affect how much oxalate is released from spinach? Lots of people are anaemic and have to take iron tablets as a result. 39. All articles are only published after being peer-reviewed and approved by the editorial board. Do expensive iron tablets contain more iron than cheaper vitamin tablets? Determine the enthalpy change of the thermal decomposition of sodium hydrogen carbonate. You can post now and register later. Online Chemistry Tutor for A Level and IB | Dr Carl Thirsk. The addition of the one millionth structure to the Cambridge Structural Database (CSD) was an incredible achievement for the whole community. 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. 45. You could look at different types/ sources of salt and compare your experimental values to the stated values. 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. 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. Strugglingfor IB Chemistry IA Ideas? Chemistry Carl is a highly-qualified tutor, teacher and examiner with an outstanding track record of helping students to succeed. Investigating the effect of fermentation time and temperature on the pH of kimchi using acid-base titration. 12. 33. What I then did was to spend about an hour rewriting my article to addressspecifically all the IB assessment criteria without adding or changing any of the actual chemistry. 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. Measure the concentration of zinc ions in a dietary supplement. You cannot paste images directly. You could also alter the reaction conditions to see if this has an effect on the calculated formula. [] Dont just copy an existing IA you found online, such as one from my list here! Does the ethanoic acid concentration vary in vinegars obtained from different grains? James awarded it a mark of 7/24 which I felt fairly reflected its worth according to the IB assessment criteria. Does water temperature affect the caffeine concentration of tea? If you continue to use this site we will assume that you are happy with it. Upload or insert images from URL. You could determine the pKa values and pH ranges of natural indicators using. Check them out by clicking here! It was observed this experiment . Onmy page on History of Internal Assessment I have detailed how the IA assessment has changed over the years. You could increase the concentration of the reactants for a reaction and observe the effect on the rate in order to deduce the overall rate expression and the rate constant for the reaction. 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. See also this Chemical Data guide. 3. An important part of the course which requires 10hrs of work for both HL and SL student. Ptable is an interactive table of elements that allows users to alter temperature, see reactions, and find the electrons, isotopes and compounds for all of the elements. Attach a screen print of your Logical Design showing all relations fully expanded. It is mostly about how you treat your topic and how you present it. Do rust removers containing oxalic acid work better if they are used hot? You could look at vitamin C tablets, different brands of orange juice or solid fruit and vegetables. It provides also a good selection of cited works. Investigate the solubility of salts (Ksp values). Investigate the energy densities of fuels versus the bond strength (using a database). Investigate the catalytic abilities of different transition and metal oxides. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more. Determine the percentage of iron in an iron compound by a redox titration. We suggest you use these International baccalaureate chemistry IAs to get IB chemistry IA ideas and explore possible chemistry IA topics for your . So if I do this experiment, I will not see any difference in the protein content. Chemistry IA - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. You can see the results of my investigation on a separate page on this website. Atoms with atomic number less than 36 (Krypton) with only . The chemistry IA examples have been marked, following the IB chemistry IA criteria, by official IB chemistry IA examiners. Investigate the energy densities of fuels versus the bond strength (using a database). Are there more waters of crystallisation in cheap washing soda? In this post, we give you 50 IB Biology IA Ideas to help you speed up your research process. Chemistry for Queensland Units 3&4 explores electrolytic cells using carbon electrodes. Does cooking temperature affect the concentration of ethanoic acid in vinegar, measured by acid-base titration? How does reaction temperature affect the yield of the diazo dye Disperse Red 13 in the Sandmeyer reaction? 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. Record the initial temperature of the water. In 2010 Eugen Schwarz wrote a paper claiming that theoretical quantum mechanical calculations lead to the conclusion that the 3d level is lower in energy than the 4s level in transition elements. Is the rate of copper purification affected by the voltage? 10 Examples of formatting data tables. 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. A Checklist Guide to Writing a Perfect Chemistry IA. Below I will attach a PDF of my Chemistry IA (submitted for Chemistry HL). As biosciences become increasingly informatic in nature, knowing how to access, use and interpret is a valuable skill. The data collection effort has been conducted in an effort with the Materials Genome Initiative in an effort to increase materials discovery. . The effect of temperature, pH or salinity on oxygen content could be investigated as one of your IB Chemistry IA ideas. It occurs in the presence of aqueous alkali and heat. Using back titration to investigate whether the concentration of aspirin from more expensive tablets is higher after 30 minutes than from cheaper ones. 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! ChemSpider is a free chemical structure database providing fast text and structure search access to over 67 million structures from hundreds of data sources. Similarly, you could look at how the length of a specific type of bond changes across different molecules. Which is the best catalyst for hydrogen peroxide decomposition, potato, liver, manganese oxide or potassium permanganate? Determine the concentration of biodiesel produced from fruits by using calorimetry. ChemistryViews ChemistryViews is the online science news magazine of Chemistry Europe. 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. Despite this, in order for students to gain high marks, the RQ is almost required to be written in the form of How does altering variable A affect variable B whilst keeping variables W, X, Y, Z etc. Vasy Kafidoff. etc. The IB should make IAs a part of only HL subjects. By integrating and linking compounds from more than 400 data sources, it enables researchers to discover the most comprehensive view of freely available chemical data from a single online search. $131,178 Yearly. If you are a student and wish to access these resources, ask your school to subscribe. Determine the solubility of an ionic salt in water by plotting a solubility curve and compare the solubility with its literature value. InThinking Subject Sites for teachers & their classes, Only teachers can take out free trials or subscriptions to our subject sites at Does catalase or potassium iodide lower the activation energy most in the famous elephants toothpaste reaction? Positions under this announcement are being filled using a D irect Hire Authority (DHA) and Recruitment Incentive is authorized for eligible, highly-qualified applicants. Now many students are having to cope with an investigation based on secondary data. You cannot paste images directly. You could investigate how changing the atoms/groups attached to the central atom affects the shape/ bond angles of a molecule. Within each topic listed below, we include the basic reasons for investigating each topic, what the possible independent variables and dependent variables are as well as the basic experimental setup! 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. We use cookies to ensure that we give you the best experience on our website. Incorporating IM, TOK, 'Utilization' etc. For example, how and why does the enthalpy of combustion change as the length of the carbon chain increases in a homologous series? Any ideas how I could incorporate something to do with seaweed? Display as a link instead, How does oxidant concentration affect the intensity of light produced from luminol? 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 . Your previous content has been restored. Posted 6:53:51 PM. Narrow data set and absence of numerical manipulation. Investigate the effect of the length a salt bridge has on the dipped voltage produced by a voltaic cell. Investigate a weak acid-strong base titration (determine the Ka of a weak acid). It should be clear from these guidelines that you need to choose your own project and completely own it. Databases. This is about how well you engage with the project and make it your own. Does cooking time affect rate of chlorophyll degradation? help/tips would be greatly helpful! 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. www.thinkib.net. Does thermal decomposition allow unknown salts to be identified? What is the pKa value for natural indicators obtained from peonies, poppies and red cabbage, determined using colorimetry? Investigate chemical equilibria (determine Kc for a reaction). Find below the assessment criteria used for chemistry independent investigations. 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. 41. 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. Royal Society of Chemistry Resources, videos and screen experiments for teachers and students. Measurement, data processing & analysis (1), 11 & 21. What are ionic equations and ionic half-equations? Place a heat mat under the can. Investigating the relationship between consumption of fat and carbohydrates per capita per day measured in kcal and share of adult obesity in a country as a percentage of the population. 3. IA Biology HL 6. The resulting IA examiner comments are also provided for each biology IA. 2 4 comments Best Add a Comment Rayford_Beez 4 yr. ago Depends on what you need it for. Some natural pigments can be used as indicators as they change colour at certain pH values, for example the pigment curcumin found in turmeric.
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