Experimental Techniques
Interactive Lab primer - links to lots of techniques
https://edu.rsc.org/resources/interactive-lab-primer/1064.article
Apparatus - https://edu.rsc.org/resources/the-interactive-lab-primer-lab-apparatus/2266.article
Aspirin Experiments
A lot about preparation of aspirin, use of re-crystallisation, melting point, and thin layer chromatography - http://www.rsc.org/learn-chemistry/content/filerepository/CMP/00/000/045/Aspirin.pdf
Synthesis of Aspirin : https://www.youtube.com/watch?v=Y4NMpO1xI8U
Synthesis of Aspirin - very good video - shows crystallisation and vacuum filtration and explanations along the way from the teacher - https://www.youtube.com/watch?v=ojZ9hpi-9w0
Recrystallisation and Vacuum Filtration to purify a compound - from Thinkwell videos with Professor Yee - very good explanation
https://www.youtube.com/watch?v=RNTtTzR8lrg
and more about recrystallisation - ignore the actual experiment here but there is some nice info and a nice diagram : http://www.users.miamioh.edu/gungbw/CHM244/pdfs/expt_3_2012.pdf
Separating Funnel
A video to show this:
and another:
TLC.
Weighing by Difference:
Analytical Balance
from Thinkwell - v good videos
https://www.youtube.com/watch?v=dNeNBx8nAyQ
Titrations
Worth watching to get finer points of doing these at Adv Higher Level
- Part 1 - https://www.youtube.com/watch?v=OxTcUSIbv4E
- Part 2 - https://www.youtube.com/watch?v=ZUX501ZA-hw
Colorimetry - using a smart meter on your mobile phone
______________________________________________
______________________________________________
The Advanced Higher Chemistry Investigation
Some resources :
Detailed Marking Instructions for the Project:
https://www.sqa.org.uk/files_ccc/AHCATChemistry.pdf
Some experiment ideas:
- https://www.canterbury.ac.nz/science/outreach/learning-resources/chemistry-workshops/
- https://www.york.ac.uk/chemistry/schools/chemrev/projects/
- see above link re: aspirin ....
Here are some ideas if you are searching for a project:
- Page 2 of this document from the Royal Society of Chemistry has various links to suggestions of experiments - https://qualifications.pearson.com/content/dam/pdf/A%20Level/Chemistry/2015/teaching-and-learning-materials/Royal_Society_of_Chemistry_resources_for_A_level_Chemistry_practicals.pdf
- measuring Nitrogen in Soil http://vlab.amrita.edu/?sub=2&brch=294&sim=1551&cnt=1 (just for future use ... possible ammonia / nitrogen uptake by seaweed : http://www.int-res.com/articles/meps/169/m169p143.pdf )
- This online book has some good idea including a caffeine extraction from tea-https://books.google.co.uk/books?id=AUrgDQAAQBAJ&pg=PA30&lpg=PA30&dq=royal+society+of+chemistry+caffeine+extraction+dichloromethane&source=bl&ots=LhOQIu2zGI&sig=ACfU3U3ZfNBMB9NyQJlGwvFz8CpWde9tRA&hl=en&sa=X&ved=2ahUKEwjAhKXTv8bkAhXrRxUIHT-3DKAQ6AEwEXoECAkQAQ#v=onepage&q&f=false
- some ideas
- might come from here http://www.rsc.org/learn-chemistry/resource/listing?searchtext=&fSubject=SUB000C1220
- or http://www.schoolscience.co.uk/scienceandfoodsafety
- Aspirin experiment - RSC - http://www.rsc.org/learn-chemistry/content/filerepository/CMP/00/000/045/Aspirin.pdf
- Organic Experiments - Leeds University:
- https://www.chem.leeds.ac.uk/fileadmin/user_upload/yr12_practicals/Year_12_Organic_2016_Final_version.pdf
- http://www.rsc.org/learn-chemistry/resource/res00001644/aspirin-screen-experiment
