Question

check all the ways listed below that ensure accurate reading of volume from a graduated pipette. tapping the base of the pipette on the table using subtraction to determine the volume dispensed making sure that you read the volume with the liquid inside the pipette at eye level reading only the final volume of liquid after dispensing ensuring that air bubbles are not in the column of liquid inside the pipette which pipette above shows that 4 ml of liquid has been dispensed? a complete done

Explanation:

Tapping the pipette base can introduce errors. Using subtraction (initial - final volume) helps find dispensed volume. Reading at eye - level gives accurate volume. Only reading final volume is insufficient. Air bubbles distort volume readings.

Answer:

using subtraction to determine the volume dispensed, making sure that you read the volume with the liquid inside the pipette at eye level, ensuring that air bubbles are not in the column of liquid inside the pipette