Jump to content

Search the Community

Showing results for tags 'chemistry sl'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • General
    • General Discussion
    • Debate and Discussion
    • Literature
    • Chat
    • University
  • International Baccalaureate
    • General IB Discussion
    • Languages A1/A Literature
    • Languages A2, B and Ab Initio
    • Economics and Business & Management
    • History
    • Psychology
    • Experimental Sciences
    • Mathematics
    • The Arts
    • Other Subjects
    • Extended Essay
    • Theory of Knowledge
    • Creativity, Action, Service
    • Exam Discussion
    • Pre-IB/MYP
  • About
    • About Our Forum

Categories

  • General IB Downloads
    • IB Syllabus & Data Booklets
    • IB Diploma Statistics
    • Other IBO documents
  • Languages A
    • English A1 Pre-2013
    • Other Languages A1 Pre-2013
    • Language A2 Pre-2013
    • English A Post-2013
    • Other A languages Post-2013
  • Languages B & Ab Initio
    • Language B and Ab Initio
  • Business and Management
    • Notes
    • Sample Internal Assessments
  • Economics
    • Notes
    • Sample Internal Assessments
  • Geography
  • History
    • Notes
    • Past paper responses
    • Sample essays
    • Sample Internal Assessments
  • Philosophy
  • Psychology
    • Exam Revision
    • Internal Assessments
    • Old Syllabus
  • Science
    • Group 4 Project
    • Biology
    • Chemistry
    • Physics
    • Environmental Systems and Societies
  • Mathematics
    • Notes
    • Sample HL Internal Assessments
    • Sample SL Internal Assessments
    • Sample Maths Studies Internal Assessments
  • Arts
  • Other Subjects
  • Theory of Knowledge
    • Guidelines and Notes
    • Sample TOK essays
    • Presentation examples and information
  • Extended Essays
    • Biology & Environmental Systems
    • Chemistry
    • Economics and Business & Management
    • Group 6
    • History
    • Language A1
    • Language B
    • Mathematics
    • Other Group 3 subjects
    • Physics
    • Psychology
  • University Application Essays and PS
  • Extracurricular
  • Pre-IB/MYP

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


Skype


Twitter


Exams

Found 31 results

  1. Hi, guys, I have just come up with an EE topic but I don't if it is any good. Here it is: The effect of sugar-free gum on the pH of saliva in the mouth after meals. What do you think? Thanks.
  2. Hey guys, I recently started planning out my chemistry SL IA. I was thinking of using different materials and analyzing how they affect the calorimeter. I was thinking of linking this to the thermodynamics module. I was thinking for example of using styrofoam cups, metal, plastic. Do you think this would be a viable analysis, as I'm wondering if there really is something to analyze here... thanks a lot, Cyril
  3. Hello, I have a question about changing IB subject.. Have any of you changed your IB subjects? What did you do, to whom did you go? Is it possible to change your IB subject during first day of school (lol)?
  4. Hi Im considering taking Chemistry as a subject in IB because I am yet to start school but I am not too sure about it as I did not take Chemistry as a subject for my IGCSE/GCSE. I wonder what you guys think about this and it would be really helpful if i could have a general comparison of chemistry as a subject in IB and IGCSE Thanks a lot
  5. So I have to do a theoretical IA in chemistry since I kind of screwed up with my practical one... I am in chemistry SL and this is a kind of hard situation for me as I don't really have any idea what I want to write about and the full draft is due 27 August 2017. My teacher gave me some sources in the form of databases but to be true I am not that good in chemistry. I take chemistry SL which may save me. Anyway if anyone did a theoretical IA in chemistry I would be very grateful for any tips.
  6. Hi, I'm supposed to come up with a rough proposal of the chem IA. I've thought some and as I need to connect this to myself, I tried to something Korean. So I thought of measuring Vitamin C content in kimchi and its change according to the storage period of kimchi, and I'm not sure if this suits an SL IA. I also haven't learned oxidation and redox things yet, so would it be hard for me to do this without any pre knowledge? Thank you for your help
  7. Hey guys, I am an IB student thats taking his IB finals in May of 2018. My chemistry IA is coming up after this summer, and I am thinking about doing one on air pollution and the formation of air pollution. My chemistry teacher told me that it won't be practical, and that it is pretty hard to do. What are some ways that I can extend on this idea, or, how can I adopt this idea to another idea? Thanks!
  8. Hey guys so long story short I decided to hold off my IA until the final week, and I need to complete my experiment basically in the next 3 days or so. My teacher gave me a pH metre, so I'm thinking about doing experiments that involve measuring the pH. My initial idea was testing how the temperature of a solution affected its pH, but my teacher said it was too simple as temperature simply changed the kA. Basically what I'm asking is does anyone have any easy topics for a chem sl IA that involve a pH metre, as well as simple household chemicals(not sulfuric acid or anything lol) Thanks so much
  9. Hi, I was just wondering if I could get some input (or mere approval from current/former IB students) about my chemistry IA research question. Is this a common lab idea? I haven't really seen it anywhere so I'm not sure but I would like to make mine unique. Is it a realistic experiment to conduct within 10 hours? "How does cooking time affect the vitamin C content in various vegetables?"
  10. samar Khader

    chemistry

    hey i need your help guys and i dont know what to do- so today i got my grade for my chemistry midterm exams and i got 54 Out of 80 and i am so scared about it and i feel like i am so far from the subject however in the first test i got 7/7 and then 6/7 and now i still dont know the boundaries if you guys can help me and tell me the boundaries and how can i improve in this subject as SL thank you and so scareedddd
  11. Hi guys, I know we have had separate discussion rooms for Chemistry, but I thought we can talk about Paper 3 specifically here :). How's everyone Paper 3?
  12. Honestly, I spent all day studying and I have mid term tomorrow (predicted grade for uni) and I really can't do Stoichiometry. Every time I think I get it, I don't at all. And its throughout the whole entire course I'm really at math, can you guys offer any tips?
  13. Hei. I need desperate help with this Redox Titration lab calculations. I suck at chemistry, I go for extra help and read text book and only understand for one day, and then I'm confused the next. Anyways, we had to experimentally determine the % H2O2 by mass in a solution given: MnO4 + H2O2 + H -> Mn + O2 + H2O (charges are given). Procedure: Combine (in order) 25 drops of H2O2 solution, 20.0 mL of deionozed water, and 20.0mL of 1.00 M +/- 0.05 M H2SO4 in an Erlenmeyer flask. Titrate with 0.0400 +/- 0.0005 M KMnO4 until solution decolorizes to a persistent pink. Raw Data: Mass of Erlenmeyer flask: 115.711 g Drops of H2O2 solution: 25 Mass of Erlenmeyer flask and H2O2 (+/- 0.002) g: 117.003g Volume of water added (+/- 0.2) mL: 20.00 Molarity of H2SO4 added (+/- 0.05) M: 1.00 Volume of H2SO4 added (+/- 0.2)mL: 20.00 Initial volume of KMnO4 added (+/- 0.2)mL: 50.00 Final volume of KMnO4 added (+/- 0.2)mL: 23.69 Molarity of KmnO4 added (+/- 0.005) M: 0.0400 Processed data: Mass of H2O2 solution used (+/- 0.004)g: Relative Uncertainty (+/- %)g: Total Volume of KMnO4 used (+/- 0.04) mL: Relative Uncertainty (+/- %) mL: Do I have to use the half reactions to balance the equation? How do I calculate the % mass H2O2 if I'm only given 25 DROPS? Please, I need help. I was going to do (Molarity H2SO4)(VOLUME H2SO4) = (MOLS H2SO4), then use stoichiometry, but I wasn't sure. I'm I in the right path?
  14. Hei guys. So today, my chem teacher announced that we need to pass in 3 IA proposals by Friday. I'm so stumped. I suck at chemistry. Its interesting, but so complex for my wee-little brain. I need ideas or at least a guide. I don't want anything too difficult (obviously). I did pretty good on the Acid & Bases unit, and also RedOx unit. Others were pretty sucky. Or, do you know any websites that may have a list of topics? Thanks!
  15. Hei. So I'm have trouble calculating the % yield for NH3 of: N2 + 3H2 = 2NH3 I know that you're supposed to find the limiting reagent, which is N2, and I know for sure that I got that right. The masses given for each molecule is 400 kg (N2), 200kg (2H2), and 220kg (2NH3). I know that you're supposed to do the (molar mass of NH3)/(220)) x 100, but I'm not getting the right answer. What am I doing wrong? The correct answer is 45.2%
  16. Guest

    Option D - Medicine and Drugs SL

    Version PDF

    24 downloads

    SL chemistry notes for option D - medicine and drugs
  17. Hello, what are the units that I need to use in the ideal gas equation formula? Thanks in advance! And good luck to all the people studying for the May exams. Only a couple days left
  18. Hello, I am taking the Chemistry SL finals in less than two weeks and I ran into a odd question. This is the question: Draw an annotated diagram of a voltaic cell composed of a magnesium electrode in 1.0 mol dm–3 magnesium nitrate solution and a silver electrode in 1.0 mol dm–3 silver nitrate solution. State the direction of electron flow on your diagram. This is a paper two question and no reactivity series was provided. From the Databooklet, what diagram/chart/table can I use to figure out that magnesium is the stronger reducing agent compared to silver and hence undergoes oxidation at the anode (negative electrode)? Or am I supposed to memorize the reactivity of magnesium compared to that of silver and other metals and transition metals? I was able to answer the question correctly because I sort of just remembered that magnesium is one of the strongest reducing agents, but I don't know any other of them. P.s. I looked at table 14 on page 12 in the databooklet and there is obviously something going on here, but wth are standard electrode potentials and how do I read this table to my benefit. Haha I'm sort of freaking out right now
  19. I just started the human biochem option (SL) and I am TERRIBLE at it. Any advice for how to learn and study it? Thanks so much!
  20. LBrown

    IA Structure

    I recently conducted my IA lab over rate of reaction. It was a simple lab where I measured the rate of an antacid tablet in HCl at different temperatures and different surface areas. My teacher is unfortunately not very helpful in the organizational aspect, and I was wondering if someone could provide a simple outline for how the final IA should be set up. Thanks a million!
  21. Hello everybody! I know the question is straight forward, but I think it is useful for y'all to know about my chemistry background. In my school, chemistry SL is done in one year meaning that we have been high-tailing on the fast lane, leaving the strugglers behind, and really grinding through the syllabus. So yeah, I have studied the core already but I feel like I have forgotten everything that we did in the beginning of the year because of the galore of information we are getting bombarded at. Also, we are on the verge of studying the options right now ( medicines and drugs, environmental chemistry) so I still have a lot of new information to cram. With that being said, what do you guys think is the most effective way to get 'em elusive sevens? I still have about three months to prepare Thanks in advance.
  22. I've been trying to think of an IA I could do on voltaic cells for my Chem SL class and I'm having a hard time finding many variables I could manipulate. I know that I can change the metals and reactions will/won't occur based on the activity series, but that's about all I've actually learned in class. I've tried googling around, seeing if concentration/temperature/salt bridge/etc. will affect the reactions, but I can't find anything that isn't insanely difficult for me to understand (chemistry isn't my strong suit haha). I've asked my teacher about it and he just says, "I don't know if anything will happen, why not test it and find out?", which, I understand, this is the point in an IA, but I've had some experiments fail in the past-- and not in the good way-- and wouldn't like to repeat that experience. So, can anyone help me understand what variables (other than metals) I could manipulate? Thanks!
  23. Hello everyone, I am a IB student in Sweden and very interested in studying medicine. My subject choices are: English A LANGUAGE & LITERATURE HL, Swedish B HL, Math SL, Chemistry SL, Biology, HL, Physics SL. Since most SWEDISH medical school require all natural sciences atleast at SL, I have to take a non-regular diploma Swedish universities also requires Swedish as a first language and to fulfill this criteria I'm going to be doing a Test for that called TISUS. The problem here is that I'm not sure how hard English HL Language & literature is and I'm pretty worried that I won't reach 40 + points which is required for medicine here. How are your experiences with these subjects especially English HL LANGUAGE & LITERATURE. Thanks in advance! Best Regards, Anna-Marie
  24. 90 downloads

    This is my chemistry SL notes which consist of all the core topics. I hope it is useful for people taking SL chemistry
  25. SO HOW WAS THE PAPER GUYS?
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.