I believe that for the first one, should be cleaned and dry. But for the second, it does not need to be dry because we would need to condition our pipet first. Can someone explain further as to why?
Chemistry 1B Name: Experiment 6B Prelab Assignment Section Pre-Lab: Before coming to lab: Make an outline of the experimental procedures in your notebook. Before coming to lab: Prepare the following table to record your titration data into your lab notebook. As always, tables are to be neat and drawn with a straight edge. Leave room for additional titrations to be performed in case a mistake is made. Titration CaSO4 (mL) Vanal(mL) Vimitial (mL) Vtotal EDTA (mL) EDTA. EDTA 1 225.00 2 25.00 R25.00 Instructor use only: Answer the following questions and tear out the Prelab pages, place on the instructor's bench. l. Answer the following questions: a. You will pipet 25.00 mL of CaSo4 solution into an Erlenmeyer flask. Does the Erlenmeyer flask need to be dry? Explain why or why not. b. You will pipet 25.00 mL of Caso solution. Does that pipet need to be dry? Explain why or why not. 120