Pemisahan Campuran dengan Sublimasi

Summary

This video demonstrates a science experiment aimed at separating camphor from sand using sublimation. The instructor, Ema Diastar Wibawa, introduces the necessary materials such as camphor, sand, a spirit burner, and an evaporating dish. The process begins with grinding the camphor and mixing it with sand. The mixture is then heated, causing the camphor to sublimate and recondense into a pure solid, separating it from the sand. This experiment showcases the sublimation process and provides a clear, hands-on example of physical separation techniques.

Takeaways

• 😀 The experiment aims to separate camphor and its impurities.
• 😀 The tools required for the experiment include a pestle, spoon, matchstick, spirit burner, tripod, wire gauze, evaporation dish, and watch glass.
• 😀 The materials needed for the experiment are sand, camphor, and ice cubes.
• 😀 The first step involves grinding the camphor into fine powder using the pestle.
• 😀 The camphor powder is then mixed with sand to form a uniform mixture.
• 😀 The mixture of camphor and sand is transferred into the evaporation dish.
• 😀 The evaporation dish is placed on the wire gauze supported by a tripod.
• 😀 The mixture is heated using a spirit burner, and the watch glass is used to cover the evaporation dish.
• 😀 The heating process causes the camphor to undergo sublimation, where it transforms from a solid to a gas.
• 😀 The camphor vapors condense on the watch glass, separating it from the sand.
• 😀 The final result is pure camphor, free from the sand impurities.

Q & A

What is the main objective of the experiment described in the script?

The main objective of the experiment is to separate a mixture of camphor and its impurity, which is sand, through a process called sublimation.

What materials and tools are used in the experiment?

The materials and tools used include a pestle and mortar for grinding camphor, a spoon, a lighter, a spirit burner, a tripod stand, wire mesh, an evaporating dish, a watch glass to cover the dish, sand, camphor, and ice cubes.

How is the camphor prepared before it is mixed with sand?

The camphor is ground into a fine powder using a pestle and mortar to increase its surface area for the sublimation process.

What happens to the mixture of sand and camphor when it is heated?

When the mixture of sand and camphor is heated, the camphor undergoes sublimation, turning into vapor and leaving the sand behind as a solid.

What is sublimation in the context of this experiment?

Sublimation is the process where a solid, such as camphor, directly transitions into a gas without first becoming a liquid. In this experiment, the camphor sublimates when heated.

Why is the camphor vapor collected and how does it solidify again?

The camphor vapor is collected on the underside of the watch glass, where it cools down and solidifies back into its solid form, separate from the sand.

What role does the watch glass play in the experiment?

The watch glass serves as a cover for the evaporating dish, helping to trap the camphor vapor and facilitate its condensation back into a solid form.

What does the experiment demonstrate about the properties of camphor and sand?

The experiment demonstrates that camphor sublimes upon heating, whereas sand does not undergo any change and remains as a solid impurity in the mixture.

What is the result after the heating process?

After the heating process, the camphor has been separated from the sand and is returned to its pure solid form, demonstrating the success of the sublimation process.

How is the purity of the camphor ensured in this experiment?

The purity of the camphor is ensured by heating the mixture until only the camphor sublimates, leaving the sand behind, and then collecting the condensed camphor in its pure solid form.