In this lesson, we are going to discuss the common laboratory apparatus. Clear diagrams are also included in this lesson.
COMMON LABORATORY APPARATUSBeakers are useful as a reaction container or to hold liquid or solid samples. They are also used to catch liquids from titrations and filtrates from filtering operations. Bunsen Burners are sources of heat. Burettes are for addition of a precise volume of liquid. Clay Triangles are placed on a ring attached to a ring stand as a support for a funnel, crucible, or evaporating dish. Droppers are for addition of liquids drop by drop. Conical Flasks are useful to contain reactions or to hold liquid samples. They are also useful to catch filtrates. Glass Funnels are for funneling liquids from one container to another or for filtering when equipped with filter paper. Measuring Cylinders are for measurement of an amount of liquid. The volume of liquid can be estimated to the nearest 0.1 mL with practice. Hot Plates can also be used as sources of heat when an open flame is not desirable. Pipettes are used to dispense small quantities of liquids. Test Tubes are for holding small samples or for holding reagents. Test tube holders are for holding test tubes when tubes should not be touched Volumetric Flasks are used to measure precise volumes of liquid or to make precise dilutions. Wash bottles are used for dispensing small quantities of distilled water. Watch glasses are for holding small samples or for covering beakers or evaporating dishes. Wire Gauze on a ring supports beakers to be heated by Bunsen burners LABORATORY EQUIPMENT Balances are used to determine the mass of a reagent or object.