Question

Identify items that can be used to control the boiling when heating liquid in a round bottom flask?

1) Stirring rod
2) Thermometer
3) Condenser
4) Bunsen burner

Answer 1

To control the boiling of a liquid in a round bottom flask, a stirring rod, condenser, and Bunsen burner are used to prevent superheating, refrigerate vapors, and supply adjustable heat respectively.

Step-by-step explanation:

To control the boiling of a liquid in a round bottom flask when heating, there are a few options. Among those listed, a stirring rod, a condenser, and a Bunsen burner are the most relevant. A stirring rod can be used to prevent superheating and bumping by allowing vapor bubbles to form more easily, ensuring a more even boil. The condenser cools the vapors back to liquid to control the temperature within the system. Lastly, the Bunsen burner provides the heat source, but its flame can be adjusted to control the intensity of the boil.