Final answer:
When looking at a burette, you can obtain two readings: the initial reading and the final reading. To determine the amount of liquid dispensed, you can subtract the final reading from the initial reading.
Step-by-step explanation:
When looking at a burette, you can obtain two readings: the initial reading and the final reading. The initial reading is the volume of the liquid in the burette before any liquid is dispensed, while the final reading is the volume of the liquid remaining in the burette after a certain amount is dispensed. To determine the amount of liquid dispensed, you can subtract the final reading from the initial reading. For example, if the initial reading is 30 mL and the final reading is 25 mL, then the amount of liquid dispensed would be 30 mL - 25 mL = 5 mL.