Chemistry - HELP!!Watch
Im studing for my GCSE Chemisty and the exam is in 25 days - it sounds like a long time I am really struggling and I'm begining to stress because my exam all start in a week and I still dont undertand!!
I've been doing loads of revison but there are some topics that I just cannot get my head around :/ I was wondering if someone could explain it to me....
- Titration Calculations and why you do a titration (what is the point in them) ... I am clueless where to start with these (We did some questions in class and I go 0 on all of them)
- Theoretical yeild .... Its probably really simple but I dont understand
Also, if anyone has any helpful tips about how to remember all of it as well as the functional groups of the different things (alkanes, alcohols, carboxylic acids, esters) that would be FANTASTIC!!
Percentage Yield: useful product/total product * 100
Dunno if I've helped.
So... what is the difference between moles and g/dm3 ... all the questions I've seen have been in cm3, g/dm3 and g :/
Oh!!! I now see what percentage yeild is... how do you work out the theoretical yeild though :/
These are probably really easy things but chemistry is hard!!!
What is your exam board?
from the ocr chemisrty specification , does a higher tier person only needs to learn the higher and standard tier outcomes and not the foundation tier outcome, im not sure and my exam is next months and i still need to start my revision but not sure how much i need to learn.
I'm not sure :/ Im just taking the specification from the website and using that as a check list for what I need to know - I think that will cover everything then
If your not sure, I would ask my teacher