Laboratory Apparatus Overview

Questions and Answers

What is the primary use of a burette?

To measure the volume of a liquid or gas (correct)

To store chemicals

To heat substances

To grind substances

A crucible is primarily used for holding liquids.

False

What laboratory equipment is used for liquid-liquid extractions?

Separatory funnel

The __________ flask is mostly used in distillation experiments.

Florence Signup and view all the answers

Match the laboratory equipment with its use:

Pipette = Transporting measured volumes of liquid Weighing Boat = Container for dry chemicals Test Tube Holder = Holding test tubes during reactions Graduated Cylinder = Accurate measurement of liquid volumes Signup and view all the answers

Which laboratory apparatus is used primarily for cleaning test tubes?

Test tube brush Signup and view all the answers

A dropper is used for moving large amounts of liquid.

False Signup and view all the answers

What is the purpose of a mortar and pestle?

To grind and mix substances Signup and view all the answers

The __________ funnel is used in suction filtration.

Büchner Signup and view all the answers

What is a common use for the Erlenmeyer flask?

Heating or boiling substances Signup and view all the answers

Study Notes

Laboratory Apparatus and Their Functions

Burette: Used for quantitative chemical analysis to measure liquid or gas volume; features a graduated glass tube with a stopcock for precise control during titrations.
Crucible: Cup-shaped equipment essential for containing chemical compounds when subjected to high heating, often used in various heating applications.
Separatory Funnel: Essential for liquid-liquid extractions; enables the separation of mixtures between immiscible solvents of varying densities.
Florence Flask: Designed for even heating of substances; widely utilized in distillation experiments due to its bulbed bottom which promotes uniform heat distribution.
Volumetric Flask: Specifically crafted for measuring and containing precise volumes of liquids, ensuring accuracy in chemical preparations.
Erlenmeyer Flask: Commonly employed for heating and boiling substances; its conical shape reduces the risk of spills during vigorous stirring or boiling.
Dropper: Device for transferring small liquid quantities; typically made from plastic and intended for single-use, ensuring hygienic handling of chemicals.
Weighing Boat: Serves as a container for dry chemicals before weighing, allowing for easy transfer and reducing contamination risks.
Pipette: Instrument tailored for transporting measured liquid volumes, crucial for precision in liquid handling.
Mortar and Pestle: Tool for grinding and mixing substances; the pestle acts as a heavy stick for pounding, while the mortar serves as the bowl.
Beaker: Basic laboratory container for liquids; widely used due to its versatility and ease of use.
Graduated Cylinder: Instrument designed for accurately measuring liquid volumes, crucial for various chemical reactions.
Glass Funnel: Facilitates the transfer of liquids into containers, minimizing spills and losses during pouring.
Büchner Funnel: Specialized for suction filtration processes, enhancing efficiency in separating solids from liquids.
Centrifuge Tube: Commonly utilized in centrifugation for separating components based on density, especially in laboratory settings.
Test Tube: Clear, cylindrical glass tube for experimentation; versatile for sample reactions and observations.
Test Tube Holder: Instrument for securely holding test tubes during reactions or when not in use, ensuring safety and stability.
Iron Ring: Supports items being heated, often used with clamps to position items over heat sources like Bunsen burners.
Watch Glass: Circular, slightly concave glass used for evaporating liquids and covering beakers; also effective for holding solids during weighing.
Evaporating Dish: Specifically designed for heating and evaporating liquids, enabling concentration of solutions.
Clay Triangle: Used to support crucibles over a heat source, typically resting on a tripod to stabilize and distribute heat evenly.
Thistle Tube: Glassware with a reservoir and funnel section, used for adding liquids into an existing apparatus setup, facilitating smooth liquid transfers.
Thermometer: Device for measuring temperatures of solids, liquids, and gases; commonly calibrated in degrees Celsius (°C), crucial for temperature control in experiments.

Description

This quiz covers essential laboratory apparatus including burettes, crucibles, and separatory funnels. Learn about their uses in chemical analysis and experimental procedures. Test your knowledge on these crucial tools for accurate measurements in the lab.