The technique S is distillation. A is the distillation flask, B is the water condenser and C is the conical flask. The separable mixtures are water acetone and water salt because boiling points differ sufficiently.
Discussion Forum Latest Questions
The correct sequence is 1, 3, 2. First, sublimation separates naphthalene. Next, filtration separates sand from the salt solution. Finally, evaporation separates common salt from water and gives the remaining salt.
Evaporation is preferred to obtain a solute when the solvent is not needed. Crystallization is preferred to obtain a pure solid. Distillation is preferred when recovering the solvent or separating miscible liquids.
(i) Total mixture is 500 g. Sugar concentration is 15 percent, flour is 84 percent and sodium hydrogencarbonate is 1 percent by mass. (ii) Copper is 84 g and zinc is 36 g.
Suspended particles in muddy water are larger and heavier, so they settle at the bottom with time. Milk contains much smaller colloidal particles that remain uniformly dispersed and do not settle easily when left undisturbed.