AQA gcse chemistry units 2+3 14th mayWatch
are you feeling prepared or nervous?
predictions on the 6 marker and what could come up?
could this end up being a 6 marker or?
My teacher analysed all past papers and she predicted that the six marker on unit 2 wil be on acids+base or precipitation, and titration on unit 3. But dont just revise that
Alkali into burette using funnel (measure from the bottom of the meniscus which is the lowest point of the bubble). Acid into conical flask via pippete (more accurate) and place onto white tile so as to see colour change easier. Slowly add alkali into conical flask whilst swirling/stirring the acid. Stop when colour change. Note down how much alkali used. Repeat. You can do a rough titration at the start to get a rough idea of how much alkali you need and then do more accurate ones. Here's a good video explaining it: https://www.youtube.com/watch?v=nQw-...wxc6v8cpzmS8-6
For the calculations, this video helped me immensely:
Also for anyone doing last minute revision, this C3 revision playlist is fantastic: https://www.youtube.com/playlist?lis...wxc6v8cpzmS8-6