ans

Why does the procedure use a graduated cylinder and not simply have you put 2 mL of unknown solution directly into the test tube? Accuracy is important in the laboratory. There is not a way to accurately put 2 mL into a test tube without first measuring 2 mL in the graduated cylinder. Benedict reagent will only work in a graduated cylinder. Using a clear graduated cylinder allows the researcher to observe the unknown solution for contamination prior to use. Amain objective of this lab is to successfully transfer liquids