When using a graduated cylinder you should measure from the bottom of the curve that you see?
Always read the measurement at the bottom of the meniscus. The graduated cylinder will usually have heavy markings at 10, 20, 30 . . . milliliters. There are usually smaller markings in between the larger units called graduations.
When reading a graduated cylinder Do you read the bottom of the?
meniscus
This curved surfaces is called the meniscus. A meniscus forms because the liquid molecules are more strongly attracted to the container than to each other. To properly measure the volume of a liquid in a graduated cylinder you must be at eye-level and read the bottom point of the meniscus. 1.
Why are graduated cylinders more accurate?
The accuracy of a graduated cylinder is higher because the graduations on the cylinder make it easier to more precisely fill, pour, measure, and read the amount of liquid contained within.
When measuring volume which is the most accurate?
Graduated cylinders, beakers, volumetric pipets, burets and volumetric flasks are five kinds of glassware often used to measure out specific volumes. Volumetric pipets, flasks and burets are the most accurate; the glassware makers calibrate these to a high level of accuracy.
What is the accuracy of a 10 mL graduated cylinder?
0.1 mL
Nalgene® graduated cylinders volume 10 mL, accuracy: 0.1 mL, polymethylpentene.
How is water level measured with a graduated cylinder?
Measuring with a graduated cylinder is complicated somewhat by a meniscus. A meniscus is the curvature of the surface of the water. Water “sticks” to the walls of the graduated cylinder, but only on the sides and not the middle. When students look at the surface, the water level is not straight.
What do call the curved surface of water in a measuring cylinder?
If the polar water molecules can stick to a surface, adhesion wins and you will get a concave (hollow) surface. Mercury does not adhere to glass, so mercury in a cylinder will curve the other way – convex. In a graduated cylinder you would read the water level from the bottom of the curvature, and the mercury level from the top.
Why does water stick to the walls of a graduated cylinder?
A meniscus is the curvature of the surface of the water. Water “sticks” to the walls of the graduated cylinder, but only on the sides and not the middle. When students look at the surface, the water level is not straight.
Why does Mercury curve in a graduated cylinder?
Mercury does not adhere to glass, so mercury in a cylinder will curve the other way – convex. In a graduated cylinder you would read the water level from the bottom of the curvature, and the mercury level from the top.