Read upper meniscus of mercury

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August undefined, 2024

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 … WebDec 14, 2024 · Reading a graduated cylinder starts with dividing the difference between adjacent numbered lines by the number of unmarked lines counted from one numbered …

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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... 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. cup holder attachment for beach chair

Why do we consider lower meniscus for colorless solutions and …

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. 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 … WebFeb 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... cup holder attachment for treadmill

How to Read a Meniscus in Chemistry - Westlab

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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. 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 … cup holder assembly for 2007 bmw 328xiWebJun 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 … cup holder baseball tights

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Read upper meniscus of mercury

Why does mercury have a meniscus that curves upward?

WebJun 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 … WebMar 23, 2024 · When liquid mercury is confined in a tube, its surface (meniscus) has a convex shape because the cohesive forces in liquid mercury tend to draw it into a drop. 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 curve.

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WebJul 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 … WebA meniscus can go up or down. It all depends on if the molecules of the liquid are more attracted to the outside material or to themselves. A concave meniscus, which is what …

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 … Web1 day ago · The lower and upper fixed points of a mercury-in-glass thermometer are marked X and 180 mm respectively. On a particular day the mercury meniscus in the thermometer rises to 60mm. If the corresponding reading on a Celsius scale is 20°C, what is the value X?

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 … 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 ...

WebJun 21, 2024 · 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 …

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 easy centerpiece ideas for christmas tableWebJan 3, 2009 · 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, … cup holder attachmentWebSep 8, 2016 · The free surface of a liquid called meniscus, assumes a flat, convex or concave shape, depending on the solid and liquid surface. The meniscus is the curve in the upper surface of a liquid close to the surface of the container or another object, caused by surface tension. It can either be convex or concave, depending on the liquid and the surface. easy centerpiece ideas for dinner partyWebDec 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... cup holder attachment for reclinerWebJun 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 … easy center console boat coversWebApr 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 … cup holder backpackWebMay 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 … easy centerpiece ideas for graduation party