Advanced Higher Chemistry 31 Gravimetric Analysis & Calculations
Channel: Andrew Hay
Date: 2021-02-06

We can calculate how much of a compound is water if we boil it off, and we can precipitate solid salts to work out how much was in solution. Both of these analytical techniques use changes in weight i.e. gravimetric analysis. Links to past papers are http://www.chemistry-teaching-resources.com/Resources/PastPapers/RevAdvH/AH_Chemistry_Revised_all_2014.pdf and http://www.chemistry-teaching-resources.com/Resources/PastPapers/CfEAdvH/NAH_Chemistry_all_2017.pdf
0:00 Intro
0:20 Weighing by difference
1:32 Heating to a constant mass
3:14 Gravimetric techniques
5:16 SQA question 1
13:22 SQA question 2