Laboratory Glassware and Equipment Guidelines

Laboratory Glassware and Basic Equipment

• Classroom Policies: Classroom discipline is required at all times. Eating, smoking, and playing in the lab are forbidden. Toxic chemicals and cultures are handled, so following rules is crucial. Students caught violating rules face disciplinary action. Students who miss the entire class session are marked absent.

• PPE: Wear lab coats or aprons and gloves during experiments. All materials marked with an asterisk must be provided by the student. Students without necessary materials are asked to leave and are marked absent.

• Manual Requirements: A copy of the lab manual is mandatory and considered a valid course requirement only for those officially issued. Photocopies are not acceptable for grading in this course. Computations should keep space free for final results. Results should be based on the correct number of significant figures, and units of measurement must be consistent.

• Reagent Handling: Do not return excess reagents to the reagent bottle, as it contaminates the original stock. Excess reagents should be passed to another group in need of that specific reagent.

• Safety in the Lab: Use the correct apparatus for chemical measurements. Reference information, and read labels before using chemicals. Do not take reagent bottles to your working areas.

• Record Keeping: Take initial notes using a pencil. Finalize all answers in ink. All final laboratory reports must be written only in ink.

• No Make-Ups: No make-up reports will be given for missed experiments. Students absent during an experiment receive zero credit for that experiment.

• Electronic Devices: Turn off all electronic gadgets (cell phones, pagers) during the experiments.

Specific Equipment

• Aspirator: A device using the venturi effect to create a vacuum. Contains a fluid (liquid or gas) that flows through a narrowed tube.

• Beaker: A reaction container, or for holding liquid or solid samples. Commonly used lab glassware.

• Erlenmeyer Flask: Useful for containing reactions or holding liquid samples. A type of flask commonly used in chemistry.

• Burette Clamp: Secures a burette in place during experiments requiring precise volume measurements. A holding tool for laboratory equipment.

• Test Tube Brush: Cleaning tool for test tubes.

• Test Tube Rack: Holds test tubes upright, especially when tubes contain chemicals. Can also be used for upside down drying.

• Porcelain Spatula/Spatulas: Tool for taking up small amounts of powdered compounds.

• Medicine Dropper: Used to add liquids drop by drop.

• Stirring Rod: Used for mixing liquids or solids and liquids.

• Funnel: For funneling liquids to another container or filtering when used with filter paper.

• Wire Gauze: Supports beakers and other containers for heating over a Bunsen burner. Metal grid with a hole in center.

• Metal Spatula: Scraping and transferring powders or solid samples.

• Test Tube Holder: Holds test tubes while avoiding contact or touching. A device for safely manipulating test tubes.

• Clay Triangle: Placed on a ring attached to a ring stand, as a support for funnel, crucible or evaporating dish. A tri-shaped support.

• Pipette: Used for dispensing small quantities of liquids. Graduated for volume measurements.

• Evaporating Dish: Tool for separating liquids and solids from a solution. Allows water to evaporate into air. Usually round and shallow bowl shaped container.

• Laboratory Tripod: Three-legged platform for supporting flasks and beakers. A tool for holding equipment.

• Laboratory Thermometer: Measuring boiling point during experiments and measuring the temperature of substances. A measuring device.

• Mortar and Pestle: Used for grinding mixtures. A tool for mixing and crushing/pulverizing substances.

• Watch Glass: For holding small samples while covering beakers or evaporating dishes. Round and flat pieces of glass.

• Test Tube: Used to hold, mix, and heat materials in chemical experiments. Cylindrical shaped glass tubes.

• Crucible Tongs: Tool to handle heated crucibles. Tongs to securely hold heated vessels.

• Alcohol Lamp: Used for heating, sterilization, and combustion in a lab. A small lamp used for heating.

• Crucible and Cover: Used to heat solid chemicals at high temperatures over burner. A small container for chemicals and a lid for covering it.

• Bunsen Burner: Gas burner for heating, combusting, and sterilizing objects. A type of gas burner used in chemistry.

• Triple Beam Balance: Measures mass of small objects. A measuring tool for items commonly used in chemistry.

This quiz covers essential guidelines for laboratory glassware and basic equipment use. It includes classroom policies, personal protective equipment (PPE) requirements, manual specifications, and reagent handling procedures. Understanding these guidelines is crucial for laboratory safety and compliance.