CH-1371
Separation and purification
Chemistry · Secondary 4 · Medium · Separation and purification
A student wants to separate a mixture of liquid hexane and liquid water. Which method using a separating funnel is correct?
- Allow layers to form, then open the tap to drain off the lower layer completely before collecting the upper layer.
- Shake the mixture vigorously and drain all of it quickly through the tap at once.
- Heat the funnel until one liquid boils and escapes as gas.
- Add a solid to absorb hexane, then filter off the solid.
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