Read upper meniscus of mercury

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August undefined, 2024

WebDec 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... WebJun 19, 2024 · 1. A vacuum must exist above the meniscus of the column so that the mercury can rise above 760mm (or 30 in.) which is what a mercury barometer reads at sea level. In other words, the mercury column needs headroom to rise with increasing ambient atmospheric pressure. A barometer capillary tube with a ball pediment cistern must have …

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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 … Webmeniscus. The meniscus formed by a non-wetting liquid, such as mercury (Hg), is convex with the highest point in the center and is no longer regularly used for volumetric calibrations. In the case of a convex meniscus, the highest point is used to make the reading. The reading of a mercury barometer or thermometer is a classic example of this … did darrell brooks apologize for his actions

Why mercury has its meniscus upward - Socratic.org

WebDec 14, 2024 · To correctly read a graduated cylinder, the surface at the center of the meniscus must be read, not the top of the ring of liquid clinging to the wall of the graduated cylinder. For most liquids, this "center" will be the lowest point of the meniscus. WebNov 6, 2015 · Explanation: Mercury metal is more attracted to itself than to the walls of the glass manometer. Why? Because mercury still exhibits metallic bonding, even in the liquid … WebAs you may have noticed, when water is in such a thin glass tube, it does not have a flat surface at the top. Instead, the top is curved inward, making it a little difficult to decide … did darkest hour win an oscar

Meniscus Definition and Examples (Science) - ThoughtCo

What Is a Meniscus? - Definition, Uses & Lab Examples

Webmeniscus (Fig. 3). The lower margin of the meniscus is observed trough the glass plate. The glass plate is turned until the margin appears at the same height as the meniscus peak laying beside it, owing to the refraction of light. The height of the meniscus can then be read from the micrometer knob. The barometer has a hPa graduation. 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. did darpa create the internetWebJun 6, 2024 · The long answer: To read a meniscus, you first need to see what type of meniscus your liquid forms. If the meniscus is a concave … did darpa invent the internet

"WebWith the meniscus curved upwards, the volume should be read at the lowest point of the liquid level (edge). During the reading, the lowest point must touch the upper edge of the … " - Read upper meniscus of mercury

Read upper meniscus of mercury

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 … 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

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WebApr 6, 2024 · How do you read upper meniscus? A meniscus occurs because of surface tension in the liquid and must be read at eye level. For a concave meniscus, the correct … Web7 hours ago · Most of upper Thailand will be hit with summer storms this weekend, while the rest of the country will experience hot to very hot temperatures, the Thai Meteorological Department warned.

WebNov 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 … WebSep 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 …

WebMay 7, 2024 · the case of a convex meniscus, the highest point is used to make the reading. The reading of a mercury barometer or thermometer is a classic example of this kind. In all apparatus where the volume is defined by a up meniscus, the concave- setting or reading is made on the lowest point of the meniscus. In order that the lowest point may be

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 …

WebA meniscus as seen in a burette of colored water. '20.00 mL' is the correct depth measurement. When reading a depth scale on the side of an instrument filled with liquid, such as a water level device, the meniscus … did darren chester win his seatWebOct 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 … did darren bailey vote to raise taxesWebAug 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 … did darren waller play todayWebSep 4, 2024 · Answer: The lower meniscus must be read while measuring the volume of colourless or transparent liquids but the upper meniscus while using colured ones … did darry drop out of schoolWebBP reading is done by noting the level of the lower meniscus of the mercury. 15.) The process involved in the exchange of gases in the lungs is: A.) Diffusion B.) Osmosis C.) … did darryl make a good predictionWebJul 4, 2024 · 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. How does the meniscus affect reading the correct volume? A meniscus occurs because of surface tension in the liquid and must be read at … did darrell brooks have a drivers licenseWebSep 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... did darren bailey win