Learning Paths
Each learning path is one chapter: a guided route through a topic, one small course at a time. Pick a class to see its chapters in order.
Chapter 31
Principles Related to Practical Chemistry
A chemist is handed a bottle with no label. How does she find out what is in it, and how much? This chapter is about the work done at the laboratory bench. We detect carbon, hydrogen, nitrogen, sulphur and the halogens in an organic compound, and find its functional group. We test for the anions and cations of a salt, group by group. We run acid and base titrations and the permanganate titrations of oxalic acid and Mohr's salt, and we make Mohr's salt, potash alum, acetanilide, p-nitroacetanilide, aniline yellow and iodoform. Every lesson reads like an experiment: the apparatus, the steps, what you see, and why. It covers the unit of the Indian syllabus (JEE Main, JEE Advanced, the board practical, KCET and WBJEE) and the practical work of A-Level and IB. Python does the arithmetic of the analysis.
3 courses
