Experimental Techniques and Analysis covers measuring and separating substances.
Filtration separates an insoluble solid from a liquid; distillation gets a pure liquid (like water) from a solution; chromatography separates coloured substances. A pure substance has a sharp, fixed melting point.
Remember
- Filter → solid from liquid · Distil → pure liquid · Chromatography → dyes.
- Pure substances have sharp melting points.