What are laboratory apparatus .

Laboratory apparatus are the tools required to complete lab work, including test tubes, pipettes, beakers, and graduated cylinders.

Explanation:

The laboratory apparatus depends upon the type of laboratory you are in and the experiment you are going to perform.

For example, if you are in a chemistry laboratory, the common apparatus you need to use are:

Test tube holders, tongs - for holding test tubes and beakers that should not or cannot be touched.

Test tubes - for holding small samples or for containing small-scale reactions.

Test tube stands - for keeping a few test tubes upright

Droppers - for adding a very small amount of liquid, drop by drop

Burettes - for adding a precise volume of a liquid

Pipettes - to dispense small and precise amount of liquid samples

Bunsen burners, hot plates, hot water baths - heat sources

Beakers, Erlenmeyer flasks - to contain reactions or to hold liquid samples

Watch glasses - a cover for beakers; sometimes used as an evaporating dish

Funnels - for funneling or for filtering

Graduated cylinders - to measure an amount of liquid

Volumetric flasks - to make precise dilutions

Wash bottles - for dispensing small quantities of distilled water

Wire gauges, clay triangles - to support a container while it is heating

Clamp stands - to support a piece of equipment or a part of it that is otherwise unstable

Balances - to measure the mass of a reagent or product

Kipp's apparatus - to produce a reagent gas (e.g. H2S) in a controlled manner

Spectrophotometers - to measure the absorbance and transmittance of a liquid sample

Fume hoods - to ventilate harmful gases

Desiccators - to preserve a substance in a moisture-free environment

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