Mõõtesilinder

Mõõtesilinder, also known as a graduated cylinder, is a common piece of laboratory equipment used to measure the volume of a liquid. It is a tall, cylindrical tube, typically made of glass or plastic, with markings along its side indicating specific volumes. These markings, called graduations, allow for precise measurements of liquids.

The primary function of a mõõtesilinder is to hold a liquid and provide a clear indication of its volume. They are generally more accurate than beakers or flasks for measuring liquid volumes, though not as accurate as volumetric pipettes or burettes. The accuracy of a mõõtesilinder is dependent on its size and the fineness of its graduations. Larger cylinders have wider graduations and are less precise, while smaller cylinders have finer graduations and offer greater accuracy.

When using a mõõtesilinder, it is important to place it on a flat, level surface to ensure accurate readings. The liquid's surface forms a meniscus, a curve caused by the adhesion of the liquid to the cylinder's walls. The volume should be read at the bottom of the meniscus for most liquids, such as water, or at the top for liquids that form a convex meniscus, like mercury.

Mõõtesilindrid come in various sizes, ranging from a few milliliters to several liters, to accommodate different measurement needs. They are essential tools in chemistry, biology, and other scientific disciplines where accurate liquid volume measurement is required. Their simplicity and relative accuracy make them a staple in any laboratory setting.