2:41 (Triple only) describe an experiment to prepare a pure, dry sample of an insoluble salt, starting from two soluble reactants
Precipitation Method:
Preparing pure dry crystals of silver chloride (AgCl) from silver nitrate solution (AgNO3) and potassium chloride solution (KCl)
| Step | Explanation |
|---|---|
| Mix the two salt solutions together in a beaker | Forms a precipitate of an insoluble salt (AgCl) |
| Stir with glass rod | Make sure all reactants have reacted |
| Filter using filter paper and funnel | Collect the precipitate (AgCl) |
| Wash with distilled water | Removes any the other soluble salts (KNO3) |
| Dry by leaving in a warm place | Evaporates the water |
