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Questions and Answers
What is the primary function of a wash bottle in a laboratory setting?
Which tool is used primarily for heating certain metals to very high temperatures?
What purpose does a triangular file serve in a laboratory?
Which piece of equipment is used to secure test tubes to a ringstand?
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What is the function of beaker tongs in a laboratory?
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When using a Bunsen burner, what equipment is typically placed on the iron ring?
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What should never be used to transfer chemicals according to safety guidelines?
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What is the main use of a Mohr pipet in laboratory procedures?
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What is the primary use of a beaker in a laboratory setting?
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Which laboratory equipment is specifically designed to hold and organize test tubes?
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What is a key characteristic of an Erlenmeyer flask?
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When are gas collecting bottles utilized?
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What is the function of a graduated cylinder in laboratory experiments?
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What should never be done when using rubber stoppers in laboratory containers?
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Which of the following statements about test tube brushes is accurate?
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What does red litmus paper indicate in a laboratory test?
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Study Notes
Basic Laboratory Equipment
- Beaker: Holds solids or liquids unlikely to release gases or splatter when stirred or heated.
- Erlenmeyer Flask: Holds solids or liquids that may release gases or splatter when stirred or heated.
- Florence Flask: Used for mixing chemicals and has a narrow neck to prevent splashing.
- Graduated Cylinder: Measures the volume of liquids.
- Gas Collecting Bottle: Used to collect large volumes of gases by water displacement.
- Test Tubes: Holds small volumes of liquids for reactions or experiments, often used for heating, typically available in two sizes: 13 x 100 mm and 10 x 75 mm.
- Test Tube Holder: Safely holds test tubes that are too hot to handle.
- Test Tube Brushes: Used to clean test tubes and graduated cylinders, choose the brush size appropriate for the container to avoid breaking it.
- Test Tube Racks: Holds and organizes test tubes on the laboratory counter, plastic racks may melt with very hot test tubes.
- Rubber Stoppers: Seals containers to prevent spillage or contamination, never heat a container with a stopper in place.
- Glass Stir Rod: Manually stirs solutions and can be used to transfer a single drop.
- Medicine Dropper: Transfers small volumes of liquid (less than 1 ml), equipped with a rubber bulb.
- Litmus Paper: Identifies acids and bases, red litmus paper turns blue in a base, blue litmus paper turns red in an acid.
- Forceps: Used to pick up small objects.
- Funnel: Aids in transferring liquids from one vessel to another.
- Mohr Pipet: Measures and delivers exact volumes of liquids.
- Wash Bottle: Dispenses a wash solution, typically distilled water, to a specific area.
- Weighing Boat: Used to weigh solids before transferring them to another vessel.
- Spatulas: Dispense solid chemicals from their containers, never use bare hands to handle chemicals.
- Beaker Tongs: Move beakers containing hot liquids.
- Bunsen Burner: Used to heat nonvolatile liquids and solids.
- Evaporating Dish: Used to heat stable solid compounds and elements.
- Crucible: Used for heating solids, particularly metals, to high temperatures.
- Clay Triangle: Supports porcelain crucibles when heated over a Bunsen burner.
- Crucible Tongs: Handle hot crucibles and other hot objects.
- Glass Plates: Used for semi-micro experiments such as drop reactions and testing acids and bases.
- Triangular File: Used to cut glass rod.
- Ringstand: A safe and convenient way to perform reactions that require heating with a Bunsen burner.
- Iron Rings: Connect to a ringstand to provide a stable, elevated platform for reactions.
- Utility Clamps: Used to secure test tubes, distillation columns, and burets to the ringstand.
- Double Buret Clamps: Secure burets, long graduated tubes used in titration.
- Wire Gauze: Placed on an iron ring to provide a stable platform for a beaker.
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Description
Test your knowledge of essential laboratory equipment with this quiz. Explore various tools like beakers, flasks, and graduated cylinders. Learn about their functions and proper usage in scientific experiments.
