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Why do we use the lower meniscus to read the clear liquid and upper meniscus to read the colored liquid?
Wiki User
∙ 10y ago
If the colored liquid is opaque (you can't see through it) you can't see the bottom of the meniscus. If the liquid is like Mercury, you can't see through it but it doesn't make any difference because the meniscus is reverse from that of water. You read the top.
Wiki User
∙ 15y ago
Wiki User
∙ 10y agoWhen you read a scale on the side of a container with a meniscus, such as a graduated cylinder or volumetric flask, it's important that the measurement accounts for the meniscus. Measure so that the line you are reading is even with the center of the meniscus. For water and most liquids, this is the bottom of the meniscus. For mercury, take the measurement from the top of the meniscus. In either case, you are measuring based on the center of the meniscus.
Wiki User
∙ 10y agoWhen measuring the level of liquid in a container, you take the measurement at the bottom of the meniscus. This provides an accurate reference point. The meniscus varies in size and shape - according to the shape of the vessel. Using the lowest point guarantees the observer is taking the measurement at the correct point.
Wiki User
∙ 12y agoFor colored liquids, the lower meniscus can't be seen clearly, therfore the upper meniscus is considered
Wiki User
∙ 11y agoWhen water is in a graduated cylinder, the center point at the top of the water appears to be lower than the edges, near the vessel's walls, forming a bowl shape
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Law of lower and upper meniscus levels in determining liquid solution?
In measuring liquids using graduated cylinder, there are two things to consider. 1.) CLEAR LIQUID and 2.) COLORED LIQUID (as we may say) In identifying the volume of CLEAR LIQUID (e.g. plain water, oil, alcohol, etc.), THE LOWER MENISCUS is read. For the COLORED LIQUID (e.g. soy sauce, ketchup, etc. ) the upper meniscus is get, since there is only one meniscus there.. (meaning there is no upper & lower meniscus.)
State two types of meniscus shape?
Convex and concave or else they are also known as the upper meniscus and the lower meniscus
Which meniscus of acid hematin is considered for taking reading?
lower meniscus of acid hematin is considered while taking reading
What is a concave meniscus and a convex meniscus?
Concave and convex lenses are curved lenses that bend light in a predictable manner depending on their radius of curvature and index of refraction. A concave lens bend inwards and a convex lens bends outwards.
How do you lower the pH level?
liquid muriatic acid
Law of lower and upper meniscus levels in determining liquid solution?
In measuring liquids using graduated cylinder, there are two things to consider. 1.) CLEAR LIQUID and 2.) COLORED LIQUID (as we may say) In identifying the volume of CLEAR LIQUID (e.g. plain water, oil, alcohol, etc.), THE LOWER MENISCUS is read. For the COLORED LIQUID (e.g. soy sauce, ketchup, etc. ) the upper meniscus is get, since there is only one meniscus there.. (meaning there is no upper & lower meniscus.)
What meniscus is being read if you measuring the volume of dark colored liquids?
1.read the bottom of the curve 2. you must read the meniscus at eye level
What is meniscus level?
When a liquid is held in a vessel, the water adheres to the side of the vessel. So when the amount of liquid held by the vessel is less than the full amount the vessel will hold, the liquid level rises where it touches the vessel. It "sticks" to the side of the vessel hard enough to be above the top of the liquid. This is called a negative meniscus. When the level of the liquid is higher than the top of the vessel (but doesn't overflow the top due to the surface tension of the liquid), then there is a positive meniscus.
State two types of meniscus shape?
Convex and concave or else they are also known as the upper meniscus and the lower meniscus
When reading the volume of fluid in a graduated cylinder the eye should be?
at the bottom of the curve there are two miniscus(curves) in all liquids present in cylinders.when a coloress liquid is present then we see the lower miniscus but when we see colored fluid we see the upper miniscus.
Is a graduated cylinder used for?
A graduated cylinder is a usually glass (but some are plastic) quantitative piece of laboratory equipment. Graduated cylinders are used for accurate liquid measurement. To read a graduated cylinder correctly, the volume of liquid contained is measured at the bottom of the meniscus, which is at the top of the liquid, in the exact center of the cylinder, and not at the side where the liquid touches the glass (or plastic).A graduated cylinder, measuring cylinder or mixing cylinder is a piece of laboratory equipment used to measure the volume of a liquidit is used for the precise measurements of liquids.To measure volume of liquids.Pour liquid in the graduated cylinder then find the lower meniscus (lower meniscus's lower curve of liquid's surface) read the volume off the graduations.Measurement of liquids OR a container used to find the volume of an object in Liters.
Why should you measure a liquid at the bottom of the meniscus?
The liquid molecules are more strongly attracted to the graduated cylinder than to each other. This causes the liquid to rise up on the sides of the graduated cylinder. Therefore it is important to read the line, even with the center of the meniscus, and at the bottom of the meniscus to accurately measure the volume of a liquid in the graduated cylinder. If you are still a bit confused I also found some information at this website: http://chemistry.about.com/od/chemistrylabexperiments/qt/meniscus.htm
Which meniscus of acid hematin is considered for taking reading?
lower meniscus of acid hematin is considered while taking reading
Is the lower mantle solid or liquid?
The lower part of the Mantle is liquid.
What is a concave meniscus and a convex meniscus?
Concave and convex lenses are curved lenses that bend light in a predictable manner depending on their radius of curvature and index of refraction. A concave lens bend inwards and a convex lens bends outwards.
Which liquid be on top?
The liquid with a lower density.
Does Light-colored rocks with lower densities form from basaltic magma?
Basaltic Magmas are dark colored, heavy and are ferromagnesian in composition, so they most times do not form light colored rocks, rather, the Felsic Granitic Magma forms the light colored rocks with lower densities.
