Question

question 4 (1 point) when dispensing solvent into the coloured eppendorf tube, which of the following describes the correct pipetting technique? push the plunger directly to the second stop and dispense quickly press to the first stop, dispense the liquid, and immediately eject the tip press to the first stop, pause for 1 second, then press to the second stop to fully dispense

Explanation:

In pipetting, to correctly dispense solvent into a tube, one should press to the first stop, pause briefly to ensure proper liquid - pickup, and then press to the second stop to fully dispense. This helps in getting the correct volume and avoiding air - bubbles or incomplete dispensing. The other options either involve improper pausing or incorrect ejection procedures.

Answer:

Press to the first stop, pause for 1 second, then press to the second stop to fully dispense