WebSep 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. 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.
Why do we consider lower meniscus for colorless solutions and …
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 … WebIf 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 … molten fishing rod
Working with volumetric instruments BRAND
WebThe atmosphere of Venus is the layer of gases surrounding Venus.It is composed primarily of supercritical carbon dioxide and is much denser and hotter than that of Earth.The temperature at the surface is 740 K (467 °C, 872 °F), and the pressure is 93 bar (1,350 psi), roughly the pressure found 900 m (3,000 ft) underwater on Earth. The Venusian … 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... 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 … molten findlay ohio