Final answer:
To accurately read a volume from a burette, ensure the instrument is level and eye is at the level of the liquid's meniscus. Read the bottom of the meniscus, and for precise measurements, divide the space between markings mentally if needed.
Step-by-step explanation:
When reading volume from a burette, the best practice involves a few key steps to ensure accuracy and precision. First, ensure that the burette is level and your eye is aligned with the level of the liquid to avoid parallax error. Next, to accurately measure the volume of liquid in the burette, take note of the bottom of the meniscus, which is the lowest point of the curved surface of the liquid. Many burettes allow for volume measurements to the nearest 0.01 mL, but it is important to read the correct measurement at the meniscus and mentally subdivide the spacing between the markings if necessary.
For example, in a graduated cylinder, you would mentally subdivide the distance between the marks and make a reading at the bottom of the meniscus.