Lab Apparatus and Functions Flashcards

1
Q

Triple Beam Balance

A

It is an instrument used to measure mass very precisely. The device has reading
error of +/- 0.05 gram.

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2
Q

Analytical Balance

A

A class of balance designed to measure small mass in the sub- milligram range.

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3
Q

Bunsen Burner

A

A type of gas burner, commonly used in chemical laboratories, with which a very hot, practically nonluminous flame is obtained by allowing air to enter at the base and mix with the gas.

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4
Q

Hot Plate

A

ability to heat the sample without any exposed flames

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5
Q

Wire Gauze

A

A sheet of thin metal that is used to protect the glassware during the heating process.

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6
Q

Iron Ring

A

Used as base to hold the wire gauze and any other container to be
heated.

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7
Q

Iron Clamp

A

Used to hold the test tube, distilling flask, and other apparatus to be
heated.

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8
Q

Iron Stand

A

Supports the iron ring and iron clamp during heating, distillation, and other extraction purposes.

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9
Q

Clay Triangle

A

Supports the crucible on an iron ring when heating.

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10
Q

Crucible Tongs

A

A tool used to hold hot materials or apparatus.

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11
Q

Crucible and Cover

A

A heat resistant container with cover in which ores or materials are melted.

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12
Q

Evaporating Dish

A

A shallow heat resistant porcelain dish in which a solution is heated and allowed to
evaporate leaving a residue on its plate.

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13
Q

Beakers

A

Least accurate instrument for measuring volume

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14
Q

Graduated Cylinder

A

Used to precisely measure the volume of liquids

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15
Q

Volumetric Flask

A

Used to measure a single predetermined volume

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16
Q

Erlenmeyer Flask

A

Used to measure approximate volumes, mixing, and sample

storage

17
Q

Pipette

A

Used to measure a volume of liquid that is being transferred to another container

18
Q

Burette

A

Used in quantitative chemical analysis to measure the volume of a
liquid or a gas

19
Q

Dropper

A

Used to move a small amounts of liquid from one place to another

20
Q

Spatula

A

Used for moving small amounts of solid from one place to another

21
Q

Test Tube

A

Used to mix, store or heat small amount of substances

22
Q

Funnel

A

Used to aid in the transfer of liquid from one vessel to another