CH-1364
Separation and purification
Chemistry · Secondary 4 · Medium · Separation and purification
A sample of magnesium sulfate crystals, , is contaminated with sand. Which sequence of methods will obtain pure, dry magnesium sulfate crystals?
- Filtration → evaporation to dryness
- Filtration → crystallisation
- Distillation → filtration
- Crystallisation → filtration
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