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❶Coursework can be very time-consuming so make sure you focus on the criteria that you are supposed to be aiming for. Im doing an iodine clock reaction, which is fairly straight forward, but there is a lot of written though.

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a2 chemistry coursework help

This is difficult to measure accurately and so it is usual to standardise the conductivity cell with a known solution often potassium chloride. C is called the cell constant. Because the conductivity of a solution depends on the concentration of the ions, it is a good idea to calculate the molar conductivity. Strong electrolytes include the strong acid and strong alkali in this category are totally ionised and weak electrolytes like the weak acid are only partially ionised.

Because the weak acid is only partially dissociated, it has only very few ions in the solution and so its conductivity is much less than for a strong acid. Here is the "later bit". In another book Atkins again but working with Julio de Paula this time conductance is defined as being the inverse of the resistance. Coursework can be very time-consuming so make sure you focus on the criteria that you are supposed to be aiming for.

Skip to main content. Title Help on A2 chemistry coursework. Log in or register to post comments. Help on A2 chemistry coursework. The conductivity of a solution is determined by measuring its electrical resistance. The resistance of a sample increases with its length and decreases with its cross-sectional area: The proportional constant in this equation is called the resistivity. Conductivity is the inverse of resistivity. By the way, this makes it look as if wrong as I said I might be!

This is a big chunk of information to digest. Have a look at this and then get back to me. Follow 10 Follow 11 Follow 12 Follow 13 Im doing an iodine clock reaction, which is fairly straight forward, but there is a lot of written though. Follow 14 Has anyone got the coursework mark scheme? Follow 15 Original post by jappy Hiii.. Lusine Follow 1 follower 2 badges Send a private message to Lusine.

Follow 16 Follow 17 Follow 18 Follow 19 I hate it so much. The last 3 weeks have been an absolute waste of time. Most of these weeks I have done 8 - 5. I now have 2 weeks to work out what the feck is going wrong with it and re do it all. Follow 20 This may sonud daft, but im really lost.. I dont understand weather ocr sets the courseowrk as i cant find it online or if I can do my cursework based on absolutely any experiment relating to the course does any one know?

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Help us to compare standards across help organisations in our reviews students that took the gce a level chemistry specifications being reviewed in review of coursework in gce a level chemistry: Edexcel gce chemistry and a level chemistry information for students and teachers, including the specification, past papers, news chemistry support.

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I need to be a bit careful in answering questions about coursework becaus eof the rules about help. However, I can give some general help. The main thing with conductimtric titrations is that pure water has a very low ability to conduct electricity because it has very few ions present. Chemistry a2 coursework help. Chemistry such, we will always do your work in line with instructions and specification you send along with level order help ensure that coursework have a quality paper that meets excepted needs.

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