. Write a short note on some devices that are used to measure the volume of liquids.
Answers
In buret we r measuring
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Explanation:
In the sciences, the “tools” for measuring the volumes of liquids are generally made from glass, plastic or occasionally metal, although professionals referred to all of them as “glassware.” Scientists, and chemists in particular, have a variety of glassware at their disposal for measuring volumes. The particular piece of glassware chosen in any situation will depend primarily upon two factors: the required volume and the accuracy required for the measurement.
Beakers and Flasks
Beakers and FlasksBeakers and Erlenmeyer flasks can be used to make coarse measurements of volumes, provided that graduated volume levels are printed on the side of the beaker or flask (not all beakers and flasks have these marks). They are usually accurate to within 5%. The volumetric flask, designed for greater precision, is typically accurate to within 0.05%. Its uses include the preparation of solutions of known concentration.
Beakers and FlasksBeakers and Erlenmeyer flasks can be used to make coarse measurements of volumes, provided that graduated volume levels are printed on the side of the beaker or flask (not all beakers and flasks have these marks). They are usually accurate to within 5%. The volumetric flask, designed for greater precision, is typically accurate to within 0.05%. Its uses include the preparation of solutions of known concentration.Graduated Cylinders
Beakers and FlasksBeakers and Erlenmeyer flasks can be used to make coarse measurements of volumes, provided that graduated volume levels are printed on the side of the beaker or flask (not all beakers and flasks have these marks). They are usually accurate to within 5%. The volumetric flask, designed for greater precision, is typically accurate to within 0.05%. Its uses include the preparation of solutions of known concentration.Graduated CylindersGraduated cylinders are transparent cylinders with finely divided markings – otherwise known as graduations – marked on their side. They represent a significant improvement in accuracy over beakers and flasks – generally to within 1%. Thus, a 10 mL graduated cylinder will be accurate to within 0.1 mL. Graduated cylinders are manufactured in sizes ranging from 5 mL to 2000 mL. As with beakers and flasks, graduated cylinders are available in either glass or plastic; glass is easier to clean, but more fragile and expensive than plastic.