Mapping Test Content to Courses Taken Worksheetsįind out what to expect when you take a computer-based test. Test and Test Information Guide Development.Written by our Talent 100 HSC Chemistry Mentor, Chris Skellern. We also have online classes available for students in NSW – so you won’t miss out on any valuable Chemistry time this year! Take advantage of our 1-1 classes where you can get your past papers marked, ask questions about homework, or just speak to one of our HSC Chemistry Mentors.Ĭlick here to find out more about our HSC Chemistry tuition courses. We’ve also created our own handy Pocket Guide containing data sheets for Mathematics, Physics and Chemistry – they can be found by asking our Student Services team at the front desk! We have learning centres in Sydney (Burwood, Chatswood, Epping, Hurstville & Sydney CBD), so you can brush-up on your Chemistry skills before exams start. Need some extra help? We’ve got you covered at Talent 100 – Valency or ionic charges, especially for confirming correct ionic formulas in Module 5 and bonding patterns or oxidation numbers in Module 7. – Molar masses for mole calculations, especially in Module 6 and for fragments in mass spectroscopy from Module 8. Most of this you will likely know off by heart by the time you sit your HSC exam, but it is still a valuable resource for several important pieces of information including: The third page is more commonly used in the Year 11 course where we study galvanic cells and metal reactivity, so rarely is required for the HSC exam.įinally, the fourth page gives us the periodic table of the elements. The data sheet only provides a few values for UV absorption, typically in highly polar bonds like C-CI or multiple bonds like C=C. This lambda represents the peak of maximum UV radiation absorbance by a bond, similar to IR absorption. For example, carbon atoms in the carbonyl group of an aldehyde or ketone are shifted strongly to 190-220 ppm. Any nucleus close to an electronegative atom like oxygen or nitrogen will be shifted from this standard. For the HSC, that standard (at 0 ppm) is TMS (tetramethylsilane). Infrared radiation is absorbed by bonds in functional groups like amines and alcohols by changing how the bond vibrates or rotates.Ĭhemical shift describes how a nucleus respond to a magnetic field relative to some standard. Wavenumber is the inverse of wavelength and represents the energy of infrared radiation absorbed by a sample. You’ll need to be aware of what each of the numbers represents: ![]() RELATED: The Ultimate Guide To HSC Chemistry – Modules 5 – 8 These numbers describe where each of the functional groups would appear in graphs from these three spectroscopic techniques The second page is purely from Module 8 and contains a list of functional groups and corresponding numbers. : Infrared absorption, 13Carbon NMR chemical shift and UV absorption data To apply these constants, you’ll need to know the formula for the solubility constant. Next, a list of solubility constants that come from the last section of Module 8. Formulas like those for pKa and pH come directly from Module 6, while formulas for Gibbs free energy come directly from Module 5. The first page contains a list of formulae and constants from across the course. : Formulae Sheet and Solubility Constants In this entry, I’d like to run through each section of this data sheet and point out where they become relevant in each of the modules of the HSC Chemistry course. ![]() It is important that you understand where and when you might need to use these values to avoid having to memorise unnecessary amounts of information. ![]() Breaking down the HSC Chemistry Data Sheet Apart from the exam paper, in the HSC you’ll also be given a 4-page document with various essential formulas and data values that you may need to refer to.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |