Laboratory Equipment and its Usage

Safety Glasses and goggles: Use to protect your eyes. MUST be worn at ALL times in the lab

ONLY taken off when instructed!!!!!!!

Electronic Balance: Used to measure the mass of a solid. NOTE:1. NEVER mass a solid chemical directly on the pan. ALWAYS use weighting paper.2. ONLY mass solids you are instructed to mass.3. DO NOT move.4. $483

Beaker: Used to mix and heat solutions and mixtures. It is graduated but is only used for general volumes measurements.Can use with a stirring rod to pour.MUST marked with Pyrex, TEKK orBomex to be heated.

Erlenmeyer Flask: Used to heat and mix solutions and mixtures. It is graduated but is only used for general volume measurements.

Bunsen Burner: Used to heat solutionsouter cone: 600oFmiddle cone: HOTTEST

1200oFinner cone: 800oF

Flint Spark Lighter: Used to light the Bunsen burner

Evaporating Dish: Used to heat solids and drive off any moisture.

Ring Stand and Ring: Used to support equipment while heating in the lab.Wire Glaze: supports a beaker and spreads the flame evenly.

FunnelsClay Triangle: Used to

support a crucible

Crucible with lid: Used to heat a solid to a very high temperature.

Watch Glass: Used to cover the crucible so that you can ‘watch’ the solid.

MUST be Pyrex

Stirring Rod: Used to stir a solution and to direct flow of a liquid.

Wash Bottle: Used to rinse out solid that may stick to the side of the beaker when a precipitate forms between two solutions.

Well Plates: Used to mix solutions

Thermometer: Used to measure the temperature of a solution or mixture.

Dropper Pipets: Used to transfer small volumes of a liquid.

Hot Mitts: Used to handle hot glassware. Remember hot glass and cool glass look alike.

Water Bath Set-up: Used to heat or raise the temperature of a substance to the temperature of water.

Titration Set-up: Used in a titration. A titration is a procedure used to determine the concentration of a solution, usually an acid or base.

Filtration Set-up: Used to separate a liquid from a solid.

Place the tip of the funnel along the edge of the beaker to prevent splashing.