Instruments Used in the Lab 9262020 Erlenmeyer Flask

Instruments Used in the Lab 9/26/2020

Erlenmeyer Flask • Used to measure large volumes of liquid • 10 m. L – 2000 m. L 9/26/2020

Other kinds of flasks 9/26/2020 Florence Flask Volumetric Flask

Beaker • A general purpose item of glassware • Used to measure large volume of liquid • 50 m. L – 2000 m. L 9/26/2020

Beaker & Beaker Tongs • Used to handle hot beakers • Do not work well for very small beakers or very large beakers 9/26/2020

Graduated Cylinders-used to measure more precise and accurate amounts of liquid 9/26/2020

Pipettes are smalls tubes either plastic or glass that can be used to measure small amounts of a solution from one container to another. Usually anywhere from 1 -100 m. L 9/26/2020

• They are filled with a red liquid for easy reading 9/26/2020 Thermometers

Test Tubes • Used for holding small amounts of liquids and solids • Sometimes reactions are done in test tubes 9/26/2020

Test Tube Racks • Test tube racks come in many styles. Can be made from plastic, metal, or wood. 9/26/2020

Test Tube Holder • This small piece of equipment does nothing except hold test tubes • The holder is used to hold test tubes when they are hot and untouchable. Usually made from metal. 9/26/2020

Funnels 9/26/2020 • There are several different types of funnels but this a common one. • Funnels can be used to cleanly transfer liquid into containers with a small opening or filter paper can put in the funnel to filter solids from a liquid.

Filter Paper 9/26/2020

Watch Glass • Watch glasses are small, flat, round pieces of glassware. • They are mainly used to dry and weigh solid compounds and to cover containers 9/26/2020

Ring Stand Iron Ring • Iron rings attach to a ring stand • Have several uses 9/26/2020

Wire Mesh (guaze) • square-shaped pieces of mesh or screen • When placed on top of a ring, they are good, flat supports for Erlenmeyer flasks and beakers in a variety of situations. • They allow for an even transfer of heat. 9/26/2020

Bunsen Burner • common piece of laboratory equipment used for heating, sterilization, and combustion. • safely burns a continuous stream of a flammable gas such as natural gas 9/26/2020

Striker • The striker has an advantage that it's longer than a match (avoid burning your fingers), and produces sparks, as opposed to an open flame, to light the burner. 9/26/2020

This is the proper set up for heating a beaker or flask Ring Stand Wire Guaze Iron Ring Striker Bunsen Burner 9/26/2020

Crucible : used for heating substances to high temperatures. • Crucible Tongs are used to move a hot crucible and lift its lid. 9/26/2020

Clay Triangle • The triangle is used to hold crucibles when they are being heated. • They usually sit on a ring stand 9/26/2020

Evaporating Dish • used to heat and evaporate liquids. 9/26/2020

Spot Plate or microwells • Used for small scale reactions 9/26/2020

Glass Stir Rods • Stir rods are long cylinders made of glass. • They come in many sizes 9/26/2020

Clamps • Connect to a ring stand at one end and to glassware at the other end. • They are designed for clamping cylindrical shaped objects. 9/26/2020

• All used to test the p. H of a substance. Phenolphthalein 9/26/2020 Litmus Paper Universal Indicator

Spatulas and Scupulas • Used for transferring solid chemicals Scoopula

Triple Beam Balance: Used for measuring Mass Accurate to a hundredth of a gram (. 01) 9/26/2020

Electronic Balance Accurate to. 01 grams Used for measuring mass 9/26/2020

Weighing Containers Weigh Boats Weighing Trays 9/26/2020

Hot Plates/Stir Plate • Used to heat up reactions 9/26/2020

Meter Stick 9/26/2020

Stoppers • Many different sizes. • May or may not have holes for thermometers. • Used for flasks. 9/26/2020

Wash Bottles • Bottle used to dispense liquid as needed. Usually used to rinse a container or to help rinse off solids in a filter funnel. 9/26/2020