Given a 0.250 M K2CrO4 Stock Solution, describe how you would prepare a solution that is 0.0125 M K2CrO4. That is, what combination(s) of pipet and volumetric flask would you use? Typical sizes of volumetric flasks found in a general chemistry laboratory are 100.0, 250.0, 500.0, and 1000.0 mL. Typical sizes of Volumetric pipets are 1.00, 5.00, 10.00, 25.00, and 50.00 mL.