what instrument is used to measure liquid volume

what instrument is used to measure liquid volume

1 year ago 63
Nature

There are several instruments that can be used to measure liquid volume, including:

  • Graduated cylinder: This is a cylindrical glass or plastic tube with a calibrated scale that allows the volume of liquid to be read directly. The scale divisions on a graduated cylinder are generally determined by its size, with larger cylinders having larger divisions.

  • Buret: This is a long, thin glass tube with a stopcock at the bottom that allows for precise measurement of liquid volume. The scale of a buret is generally more precise than that of a graduated cylinder, with divisions as small as 0.01 mL.

  • Pipette: This is a glass or plastic tube with a bulb at one end and a tapered tip at the other. It is used to transfer a specific volume of liquid from one container to another. Volumetric pipettes are designed for greater precision and are typically accurate to within 0.05% .

  • Beaker: This is a cylindrical glass or plastic container with a flat bottom and a spout for pouring. Beakers can be used to make coarse measurements of volumes, provided that graduated volume levels are printed on the side of the beaker. They are usually accurate to within 5% .

  • Erlenmeyer flask: This is a conical glass or plastic container with a flat bottom and a narrow neck. Like beakers, Erlenmeyer flasks can be used to make coarse measurements of volumes, provided that graduated volume levels are printed on the side of the flask. They are usually accurate to within 5% .

In general, the choice of instrument will depend on the required volume and the accuracy required for the measurement. Graduated cylinders and beakers are suitable for making rough measurements, while burets and volumetric pipettes are preferred for more precise measurements.

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