Instruments for measuring volume are essential in all chemistry, biology and scientific research laboratories. For the measurement, transfer or containment of liquids and solids. There is a wide range of diverse materials, knowing their function facilitates their handling and obtaining quality results.
What is a volume measurment tool?
They are a tool for performing the measurement of the physical magnitude of a container, container. They can have a graduated scale or not. They are containers of liquids, solids or gases. With these, the necessary data are obtained to use them in the analysis of a sample under study. There are various ways to perform volume measurement. For a liquid with a beaker, a graduated cylinder, with a flask with a pipette, a burette. In solids, for irregular solids, by immersion in water. So the volume will be the difference of the initial volume minus the final volume.
The weight, the precision balance, the meter, the graduated cylinder are also used. It also displays units of mass such as gram, kilogram, pound. In the same line the regular solids by means of formulas of pre-established geometric figures. They are made of different materials, glass or plastic. Its size varies depending on its capacity, from liters, half a liter, a quarter liter and for what it is needed.
What are the tools to measure volume?
Within the laboratory there are various types of instruments to measure, contain or transfer the volume. Such instruments provide high efficiency. They can be classified into, materials for daily use, those with approximate measurements and those with precision measurements. Among those who are.
- The enlermeyer flask, in ml.
- The pipette, burette, in cubic Cm.
- The graduated cylinder, in ml.
- The beaker, in ml.
- The graduated pipette.
- Volumetric pipette.
- The volumetric flask.
- The kitasato flask.
- The propipeta.
- The syringe.
- The test tube.
|A tall, narrow container with calibrated markings used to measure the volume of liquids.
|Milliliters (mL), Liters (L)
|Chemistry, Biology, Education
|A flask with a precise volume mark used for preparing solutions of a specific volume.
|Milliliters (mL), Liters (L)
|Chemistry, Analytical Work
|A slender tube used to transfer precise volumes of liquids, available in various types such as micropipettes and graduated pipettes.
|Microliters (μL), Milliliters (mL)
|Biotechnology, Chemistry, Medicine
|A long, graduated tube with a stopcock at the bottom used for delivering precise volumes of liquid in titration experiments.
|Analytical Chemistry, Titration
What is the most accurate instrument for measuring volumes?
This section refers to graduated instruments, which do not share the same precision. The most accurate are: Burettes, pipettes, because they have a scale divided into subdivisions. Providing the opportunity to have values that are close to reality. With regard to the volume of the liquid exact.
They are used in chemical analysis as valuations or titrations, necessary for obtaining reliable measurements. As for the ability of graduated instruments can be said that. The smallest volume is 5 ml and the largest is 1000 ml. The most accurate are: Burettes, pipettes, volumetric pipettes, katasate, volumetric flask, Buchner flask.
Now the rough measurement materials are more imprecise, they are used for general laboratory processes. Of liquid containment, stirring, filtering, heating, for mixing, getting precipitates, treating samples, getting precipitates. As the graduated cylinder, the enlermeyer flask, the beaker.
Instruments for measuring liquid volume
The graduated cylinder is one of them which in its characteristics is a long tube that has a graduated scale, is closed at one end and open at the other. It is used as a container for liquids, solids and gases. Its purpose is the measurement of volume, collecting, transvasingliquids. It measures approximate volumes. They are made of various sizes and different materials such as plastic and glass. The Enlermeyer flask has a graduated scale to determine the approximate volume.
It has sloping walls, with a wide mouth to introduce objects, liquids or solids that are supplied with energy. The volumetric flask has a mark indicating the level of solution it can contain. It is used to dilute, contain solutions, heat substances. The presence of a spout through which the liquids are dislodged is also observed. The burette, exact volume measurements are made, with a unique diameter, it has a key with a Mohr clamp through which the liquid comes out drop by drop. It also has a specific graduated scale.
The pipette is used to measure and pass small volumes of liquid from one container to another with precision. As for its shape, it has two tips, one is cone-shaped where the liquid comes out. While the other has a small tubular reduction that serves as a grip where pressure is exerted to retain or release the solution. They are usually made of transparent glass material, use a bulb to suck out the solution. There are different types: manual, electronic, volumetric or volumetric.
The beaker, is as the name suggests a beaker with a spout on its edge. They are used to contain, heat and mix liquids and solids.
What is the most accurate instrument for measuring volumes’
The tools for measuring volume more accurately and reliably are: Burettes, pipettes, serological pipette. It contains in its constitution a few lines called subdivisions that facilitate the readings of liquid volumes.
What are the instruments for measuring the mass and volume?
Among the instruments to measure the mass by making comparison of bodies or objects we have the balance. Within which there are two types: the analytical balance and the granular balance. The first, with an accuracy ranging from the minimum load of 0.1 gr to 0.05 gr and the maximum load between 50 gr to 200 gr, the second from a load between 0.1 gr to 0.001 gr to a maximum load of 8000 grams. The graduated cylinder, instrument used to measure volume in a solid object and depends on the solid that is involved.
In the irregular solids for which they possess no form define. Where the liquid with a certain volume is placed, volume initial. The irregular solid is introduced, an increase in the volume will be observed which will be set as final. The difference between the two volumes will be the volume of solid. Added to the above we have the determination of volume in regular solids. Where it is not used no instrument but known formulas for a definite form. As for a cube, a sphere, a cylinder, a rectangle.
With the use of a ruler and the units are Cm cubic. Taking into account the width, length and depth. The volume of a gas, folds to the model or shape of the container. The unit is in centimeters cubic
Instruments for measuring volume, are the basis for the study of a sample using chemical analysis, I hope you have found answers to your concerns, please refer to this information whenever you need.
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