The property of water that causes the hydrometer to be read at the level of the meniscus is surface tension. The meniscus is the curved surface of the water in the hydrometer caused by the attraction between water molecules and the walls of the hydrometer. Reading at the bottom of the meniscus helps to ensure an accurate measurement.
The hydrometer will float higher in glycerin than in gasoline because glycerin is denser than gasoline. The level to which the hydrometer floats indicates the density of the liquid it is submerged in.
You should always measure at the lowest part of the meniscus. The meniscus is a slight curvature at the top of a liquid in a container.
As the diameter of the container decreases, the meniscus becomes more pronounced. The meniscus may be convex (curving upward) or concave (curving downward). Most of the time you will find that the meniscus is concave. The most notable exception is the meniscus that forms from mercury. When taking measurement readings it is important that the reading is done properly. The following rules must be adhered to: I. Read the meniscus at eye level. Do not read the meniscus from above or below eye level. Significant measurement errors may occur II. Read the bottom of a concave meniscus and the top of a convex meniscus.
1.read the bottom of the curve 2. you must read the meniscus at eye level
Liquid volume readings should be at the bottom of the menicus or at the level of the liquid in the middle of the container. The accuracy of the reading may vary slightly with the viscosity of the liquid and the diameter of the container.
· Zero Correction (Fz): If the zero reading in the hydrometer (in the control cylinder) is below the water meniscus, it is (+), if above it is (-), if at the meniscus it is zero.· Meniscus Correction (Fm): Difference between upper level of meniscus and water level of control cylinder.
You measure from the bottom curve of the meniscus.
It's called Ya Mum's Panis
A hydrometer measures the density of liquids by floating in the liquid and sinking to a certain level based on the liquid's density. The higher the density of the liquid, the lower the hydrometer will sink. The scale on the hydrometer provides a reading of the liquid's density.
The hydrometer will float higher in glycerin than in gasoline because glycerin is denser than gasoline. The level to which the hydrometer floats indicates the density of the liquid it is submerged in.
You do not see a meniscus in Diagram C, as the liquid surface is flat and level with no curvature at the edges.
To measure the volume of a liquid accurately, it is important to read the meniscus at eye level.
You should always measure at the lowest part of the meniscus. The meniscus is a slight curvature at the top of a liquid in a container.
1.read the bottom of the curve 2. you must read the meniscus at eye level
As the diameter of the container decreases, the meniscus becomes more pronounced. The meniscus may be convex (curving upward) or concave (curving downward). Most of the time you will find that the meniscus is concave. The most notable exception is the meniscus that forms from mercury. When taking measurement readings it is important that the reading is done properly. The following rules must be adhered to: I. Read the meniscus at eye level. Do not read the meniscus from above or below eye level. Significant measurement errors may occur II. Read the bottom of a concave meniscus and the top of a convex meniscus.
meniscus is when you fill the beaker upwith liquid. when yo go down to look at the beaker with eye level, you see a dip. that's the meniscus. -used in science
Liquid volume readings should be at the bottom of the menicus or at the level of the liquid in the middle of the container. The accuracy of the reading may vary slightly with the viscosity of the liquid and the diameter of the container.