Lab Equipment & Glassware and Measurement Rules

Vocabulary flashcards covering common laboratory equipment, glassware, and volume measurement estimation rules.

Beaker

Used as a container; may be heated; volume markings are approximate and it is NOT used for measuring a specific volume.

Graduated Cylinder

Used for accurate measurement of liquid volume; requires estimating one uncertain digit when reading.

Erlenmeyer Flask

Used as a container where contents may be swirled to mix; may be heated; NOT used to measure a specific volume.

Volumetric Flask

Used for dissolving solids in water; holds only one precise volume and is the most accurate flask.

Buret

Used to deliver known volumes of a solution; the zero mark is located at the top.

Volumetric Pipette

Used to measure and transfer small, precise volumes; the zero mark is located at the top.

Test Tube

Used for mixing and reacting small quantities of liquids.

Bunsen Burner

Used to heat chemicals in beakers, flasks, or test tubes.

Ring Stand

Used to support lab apparatus.

Tongs

Used for picking up and holding hot items safely.

Clamp

Used to attach a piece of equipment to a ring stand.

Wire Gauze

Used to spread the heat of a flame onto the bottom of a beaker or flask.

Mortar and Pestle

Used to grind solid chemicals into a fine powder.

Evaporating Dish

Used to hold solutions over a Bunsen burner to evaporate liquid.

Hot Plate

Used for heating objects (usually an evaporating dish or beaker); turn off and unplug when finished.

Stirring Rod

Used to stir mixtures and to help pour liquids cleanly without spilling.

Pipette

Used to transfer small amounts of liquid.

Watch Glass

Used to cover liquids being heated in a beaker to prevent spattering; should not be directly heated.

Crucible & Cover

Used to heat small amounts of solids to high temperatures.

Funnel

Used to help pour liquids without spilling or to hold filter paper.

Clay Triangle

Used to hold a crucible while heating.

Well Plate

Used to perform experiments with small volumes, allowing multiple conditions to be tested simultaneously.

Graduated Cylinder Reading ($1\,mL$ markings)

When markings are every $1\,mL$, estimate the volume reading to the nearest $0.1\,mL$ (e.g., $23.9\,mL$).

Graduated Cylinder Reading ($0.1\,mL$ markings)

When markings are every $0.1\,mL$, estimate the volume reading to the nearest $0.01\,mL$ (e.g., $6.60\,mL$, where trailing zeros are required).