What is generally the best approach when liquid from a large reagent

Subject : Chemistry

Question: What is generally the best approach when liquid from a large reagent bottle is needed in an experiment?

Select one:

A) Pour some of the reagents from the bottle into a beaker, then use as needed in the procedure.

B) Pour liquids directly from a reagent bottle only when a funnel is placed securely underneath.

C) Dispense the liquid directly from the reagent bottle whenever it is needed.

D) Insert a pipet into the reagent bottle as many times as needed to get the desired amount of liquid.

Expert Verified Solution:

The correct answer is:

A) Pour some of the reagents from the bottle into a beaker, then use as needed in the procedure.

This approach is generally considered best practice because it minimizes the risk of contamination and spillage, and ensures that the reagent bottle remains uncontaminated. By transferring only the necessary amount into a separate container, you avoid repeated exposure of the main reagent bottle to the environment and reduce the risk of errors in your experiment.