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A hot-water or boiling water bath requires which of the following sets of equipment?

A. Burner, tongs, beaker
B. Burner, iron ring and ring stand, beaker
C. Burner, wire/mesh gauze, tongs, iron ring and ring stand, beaker
D. Burner, iron ring and ring stand, stirring rod, wire/mesh gauze, beaker

Answer :

Final answer:

A hot-water bath in a chemistry lab requires a burner, a beaker, and tongs, along with an iron ring, ring stand, and wire gauze for stability. The burner provides the heat, while the tongs help handle hot equipment safely. A proper setup is crucial for effective heating of liquids.


Explanation:

Understanding Hot-Water Baths in Chemistry

In a chemistry lab, a hot-water or boiling water bath is employed to heat substances gently and evenly. To set up a proper water bath, you typically need the following equipment:

  • Burner: This can be a Bunsen burner or a hot plate to provide the heat source.
  • Beaker: A vessel to hold the water, usually placed above the burner.
  • Tongs: Essential for safely handling hot equipment.
  • Iron ring and ring stand: These hold the beaker in place securely above the flame.
  • Wire/mesh gauze: Used to provide stability and even heat distribution to the beaker or flask.

The best combination for a hot-water bath would therefore involve Burner, wire/mesh gauze, tongs, iron ring and ring stand, and beaker to ensure safe and effective heating of liquids.

Example of Equipment Setup

For instance, you can fill a beaker with water, place it on a wire gauze set atop an iron ring supported by a ring stand, and then heat it using a Bunsen burner underneath. This setup allows for safe heating and easy access to the water bath.


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