Read upper meniscus of mercury
WebNov 21, 2024 · It is called a meniscus. When a glass capillary immersed in mercury, the meniscus is convex upwards. The air pressure on the upper or convex side of the meniscus is the atmospheric pressure P. We know that the pressure on the concave side of the free surface is greater than that on the convex side. WebJun 21, 2024 · Pick up the glassware to bring it up to eye level or bend down to take a measurement. The key to getting an accurate reading is to measure the centre of the meniscus whether it be concave or convex. E.g. with a concave meniscus, measure the bottom of the meniscus and for convex meniscus, take the reading from the top of the …
Read upper meniscus of mercury
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WebOct 2, 2024 · For mercury, take the measurement from the top of the meniscus. In either case, you are measuring based on the center of the meniscus. For a flat meniscus, make … Meniscus in Chemistry . A concave meniscus forms when the liquid … Solids . A solid has a definite shape and volume because the molecules that … Stuart Minzey / Getty Images. Test tubes are good for collecting and holding small … Learn how to read a barometer and how to tell what kind of weather (fair or stormy) … Fuse / Getty Images. This procedure uses flammable substances and generates … The can be used to calculate the density of an object if its mass is known. Graduated … Reading a Meniscus in Measurement. An important laboratory technique in a … Surface Tension Definition . Surface tension is a physical property equal to the … Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, … By clicking “Accept All Cookies”, you agree to the storing of cookies on your device … WebSep 30, 2024 · A meniscus may be either concave or convex. A concave meniscus curves downward; if you are looking down from the top, it curves away from you, like the opening of a cave would. In contrast, a...
WebMay 7, 2024 · reading is made on the lowest point of the meniscus. In order that the lowest point may be observed, it is necessary to place a shade of some dark material … WebApr 30, 2024 · The chemistry definition of meniscus is the curve that exists on the surface of a liquid when it is placed into a container. This curve is either convex or concave. It …
WebThe meniscus of most liquids is concave-up, with the lowest point in the center that is used to determine the meniscus reading. Your eye must be on the same level as the bottom of the meniscus to read the volume correctly. The meniscus formed by a non-wetting liquid, such as mercury (Hg), is convex with the highest point in the center. In the WebIf the cohesion force of a fluid is stronger than the adhesion force of the glass wall, an upwardly curved (convex) meniscus is formed. This happens with mercury, for example. ... In the case of a concave meniscus, the volume has to be read at the lowest point of the liquid level. The lowest point of the meniscus has to touch the upper edge of ...
WebApr 11, 2024 · Brainly User. To accurately measure the final volume of a solution in a burette, it is important that you read of the measurement in the lower meniscus like for water and for substances like mercury you read it on the upper meniscus. This is the standard way of reading volumes in laboratory apparatus. Also, it should be that the apparatus ...
WebNov 16, 2016 · For mercury, take the measurement from the top of the meniscus. In either case, you are measuring based on the centre of the meniscus. You won’t be able to take an accurate reading looking up at the liquid level or down into it. Get eye-level with the meniscus. You can either pick up the glassware to bring it up to your level or else bend ... the postman\u0027s knock blogWebDec 31, 2010 · 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... siemens 2 ring induction hobWebNov 16, 2016 · When you read a scale on the side of a container with a meniscus, such as a graduated cylinder or volumetric flask, it is important that the measurement accounts for … the postman\u0027s creedWebFeb 3, 2012 · The meniscus of water curves up the sides of the cylinder, while heavy liquids like mercury curves down the cylinder. You should always measure light liquids at the bottom of the meniscus and... the postman sign installationWebSep 2, 2024 · A meniscus occurs because of surface tension in the liquid and must be read at eye level. For a concave meniscus, the correct volume will be read at the bottom of the … the postman seattle shootingWebIf you filled it with mercury, you would get a meniscus that looks like this where there's a bulge near the center when you're further away from the container than when you're at the … the postmans knock handwritingWebAug 28, 2024 · The meniscus (plural: menisci, from the Greek for "crescent") is the curve in the upper surface of a liquid to the surface of the container or another object. It can be … siemens 2200 thermostat