Instruments Used in the Lab 9262020 Erlenmeyer Flask

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Instruments Used in the Lab 9/26/2020

Instruments Used in the Lab 9/26/2020

Erlenmeyer Flask • Used to measure large volumes of liquid • 10 m. L

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

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

Beaker • A general purpose item of glassware • Used to measure large volume

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

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

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

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

• 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

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

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

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

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

Filter Paper 9/26/2020

Watch Glass • Watch glasses are small, flat, round pieces of glassware. • They

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

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

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.

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

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

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

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

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

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

Spot Plate or microwells • Used for small scale reactions 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

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

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

• 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

Spatulas and Scupulas • Used for transferring solid chemicals Scoopula

Triple Beam Balance: Used for measuring Mass Accurate to a hundredth of a gram

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

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

Weighing Containers Weigh Boats Weighing Trays 9/26/2020

Weighing Containers Weigh Boats Weighing Trays 9/26/2020

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

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

Meter Stick 9/26/2020

Meter Stick 9/26/2020

Stoppers • Many different sizes. • May or may not have holes for thermometers.

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

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