Read upper meniscus of mercury

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August undefined, 2024

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. 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 …

How to Read a Meniscus in Lab Measurements - ThoughtCo

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 … WebThe mercury atoms are strongly attracted to each other by metallic bonds. Mercury is attracted to the glass, but the cohesive forces in mercury are stronger than the adhesive forces between mercury atoms and the glass. ( 9 votes) Show more... Cathrin Lionheart 7 years ago At 5:56 cancelled ink stamp

Which liquid has upper meniscus? – Sage-Answers

WebBP 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.) … 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 ... 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 … fishing sam rayburn in january vidos

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Which liquid has upper meniscus? – Sage-Answers

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. 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 … fishing sandals dswWebJun 6, 2024 · In your high-school chemistry final exam you mistakenly read a meniscus as 21.9 milliliters (ml) instead of the correct 21.7 ml (in this picture), and thus you get an 89 … fishing sandals australia

"WebJan 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, … " - Read upper meniscus of mercury

Read upper meniscus of mercury

Why do we consider lower meniscus for colorless solutions and …

WebAnswer: In short, you read the bottom level because the higher level is a reflection. But it doesn’t matter which you use when measuring differences as with a burette reading, provided you use the same surface reference level. Of course, reading the bottom is necessary when dispensing an absolute... WebSep 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 …

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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 … 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 …

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 … 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 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 … 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...

WebSep 1, 2024 · Meniscus in Anatomy. In anatomy and medicine, a meniscus is a crescent-shaped or semi-lunar structure that partially divides the cavity of a joint. A meniscus is a fibrocartilaginous tissue. Examples in humans are found in the wrist, knee, temporomandibular, and sternoclavicular joints. In contrast, an articular disk is a structure …

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 … cancelled las vegas showsWebMay 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 cancelled license plateWebJun 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 … cancelled lightWebIn order to get the true volume with a concave meniscus, read based on the bottoms of the meniscus Being at eye level When reading a volume in a graduated cylinder, it is also important that your eyes are level so that you … cancelled larryWebSep 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 … cancelled light novelsWebMay 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 … fishing sandals size 14WebAug 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 … cancelled manga