Small containers should be used to prepare solutions in the laboratory because they minimize the amount of chemical that is used. This is important for safety reasons, as it reduces the risk of exposure to hazardous chemicals. Additionally, small containers are easier to handle and clean up.

2. When you prepare the dilution of a concentrated acid with water, what is the most important rule that you must follow?

The most important rule to follow when preparing the dilution of a concentrated acid with water is to add the acid to the water, never the water to the acid. This is because concentrated acids are more dense than water and will sink to the bottom of the container if added to water. If water is added to acid, it can splash up and cause burns.

3. In the laboratory, where should you work with volatile chemical reagents?

Volatile chemical reagents should be worked with in a fume hood. A fume hood is a ventilated enclosure that helps to remove hazardous vapors from the air. This is important because volatile chemicals can be harmful if inhaled.

4. What are the correct rules for the safe use of Bunsen burners?

The correct rules for the safe use of Bunsen burners are:

• Always turn off the Bunsen burner when you are not using it.
• Never leave a Bunsen burner unattended.
• Keep the flame away from flammable materials.
• Do not point the flame at yourself or others.
• Be careful not to spill chemicals on the Bunsen burner.

Here are some additional safety tips for working in a chemistry laboratory:

• Always read the safety labels on chemicals before using them.
• Wear appropriate personal protective equipment (PPE), such as safety goggles, gloves, and a lab coat.
• Follow the instructions of your instructor or supervisor.
• Be aware of your surroundings and be careful not to trip or bump into anything.
• Clean up any spills immediately.

By following these safety tips, you can help to prevent accidents and injuries in the chemistry laboratory.