Why does a 150 ml beaker have more uncertain than a 10.0 ml graduated cylinder in determining volume?

Answer 1

The uncertainty in measuring volume is directly related to the precision of the measuring device. A 150 ml beaker has a larger capacity, which means that the volume markings on it are further apart and have larger increments. This results in a higher degree of uncertainty when trying to measure a specific volume. On the other hand, a 10.0 ml graduated cylinder has smaller increments and therefore allows for a more precise measurement of volume, leading to lower uncertainty.

Answer 2

A 10mL graduated cylinder has graduations between each milliliter that denote 0.1mL and allow an uncertainty that is lower that 0.1mL. Because a 150mL beaker doesn't likely have many graduations, the degree of uncertainty is far greater, usually well over 1mL. Beakers are designed to hold a volume and its graduations are only meant to give an approximation while graduated cylinders are specifically designed to deliver large amounts of volume with little uncertainty.

Answer 3

A 150 ml beaker has a larger measurement range, so there is more potential for error in reading the volume accurately compared to a 10.0 ml graduated cylinder where the scale is more finely divided, leading to less uncertainty in measurement. Additionally, the markings on a graduated cylinder are typically more precise than those on a beaker, allowing for more accurate volume readings.