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Lab: Solubility Instruction Active. Ensure Safety in the Laboratory. Which actions will ensure laboratory safety during the experiment? Check all that apply:
1. Using beaker tongs to handle the hot beaker
2. Reading the thermometer accurately
3. Checking the beaker for chips prior to heating on the hot plate
4. Using a beaker instead of an Erlenmeyer flask
5. Turning off the hot plate after use.

Answer :

Ensuring laboratory safety is crucial when performing experiments. In a chemistry lab, several actions must be taken to ensure both personal safety and the safety of others around you. Here are the actions listed from the question that contribute to laboratory safety:

  1. Using beaker tongs to handle the hot beaker: This is very important for safety. A hot beaker can cause burns if touched directly. Beaker tongs help to safely move or carry the hot beaker without risking injury.

  2. Reading the thermometer accurately: While reading a thermometer accurately is important for obtaining precise measurements during experiments, it does not necessarily relate directly to safety. However, being close enough to read it without proper precautions could potentially expose someone to chemical vapors or spills.

  3. Checking the beaker for chips prior to heating on the hot plate: This is important for safety because a chipped or cracked beaker can easily break or shatter when exposed to heat, leading to spills of hot substances and potential injuries.

  4. Using a beaker instead of an Erlenmeyer flask: This is more about procedure preference rather than directly about safety. Both a beaker and an Erlenmeyer flask can be used safely if handled correctly.

  5. Turning off the hot plate after use: This is a critical safety measure. Leaving a hot plate on unattended increases the risk of burns, fire hazards, and overheating of substances.

The safety-related actions are: 1, 3, and 5. These steps help prevent injury and accidents in the lab environment. Always remember that following proper laboratory protocols and using personal protective equipment (PPE) is essential in maintaining a safe working area.

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