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11 CHEM
Intro Quiz
| Question | Answer |
|---|---|
| Erlenmeyer Flask | An Erlenmeyer Flask is used to mix/swirl liquids Can be stoppered to prevent evaporation |
| Bunsen Burner | A Bunsen Burner is a device used in scientific laboratories for heating and the sterilization of equipment |
| Latex hose | Connects Bunsen burner to the gas |
| Flint Striker | A Flint Striker creates a spark Used to safely light a Bunsen burner Preferred over matches |
| Watch Glass | A Watch Glass is a small concave is a small concave circular piece of glass is used either as surface to evaporate a liquid or as a cover for a beaker |
| Graduated Cylinder | A Graduated Cylinder, is the only type of lab glassware, is the only type of lab glassware that we use for measuring the volumes, is the only type of lab glassware that we use for measuring the volumes of liquids, |
| Test Tube | A Test Tube is designed to allow for the easy heating of samples Must be held in a flame, at a 45o angle Made of special expansion-resistant glasses called Pyrex Only Pyrex can be used in flames |
| Test Tube Brush | A Test Tube Brush is used to clean test tubes & beakers Fits neatly inside, to allow for scrubbing Glassware and equipment is ALWAYS cleaned after lab…. |
| Pipette & Dropper | Both a Pipette and Dropper dispense small volumes or drops of liquids Volume dispensed is not exact |
| Burette | A Burette is used to dispense an EXACT volume of liquid Mostly used in a procedure called a “titration” to calculate the acidity of an unknown acid |
| Beaker | A Beaker is a cylindrical cup with a notch on the top to allow the pouring of liquids Made of Pyrex glass Used for mixing & heating of chemicals NEVER used for measurement of volume! |
| Test Tube Rack | The Test Tube Rack is used to hold multiple test tubes in the upright position May be made of wood or plastic Always place test tubes in the rack or they will roll off the lab bench and break!! |
| Test Tube Holder | Test Tube Holder is used to hold hot test tubes Made of metal with a spring Squeeze to open… make sure the test tube is secure! |
| Crucible | A Crucible is a cup-shaped piece of laboratoryis a cup-shaped piece of laboratory equipment Used when heating compounds to very high temperatures Made of porcelain |
| Crucible tongs | are used to safely holds a crucible |
| Mortar & Pestle | A Mortar and Pestle is used to grind a solid into powder Made of porcelain |
| Iron Ring | fastens to a stand Serves as support to heat various lab apparatus upon |
| Metal Stand | serves as support for iron ring and other lab apparatus Heavy metal base |
| Test Tube Clamp | A Test Tube Clamp connects to the metal stand to hold test tube Often contains rubber coated ends |
| Clay Triangle | sits on the iron ring Metal wire frame with porcelain center Supports a crucible while heating |
| Wire Mesh | sits on the iron ring, under a beaker It evenly distributes heat from a Bunsen burner |
| Evaporating Dish | An Evaporating Dish is a porcelain dish used to heat solutions i.e. salt water Solutions will evaporate & we are left with whatever was dissolved in the solution i.e. salt |
| Stir Rods | are long cylinders made of glass, plastic or wood Used to carefully mix solutions |
| Thermometer | is used to measure temperature NEVER used to stir a mixture! We only use the Celsius scale in chemistry |
| Hot Hands | are used to safely hold “hot” beakers, the iron ring and larger diameter glassware |
| Electronic Balance & Weigh Paper | is used to mass substances They are very delicate is a plastic, disposable dish used when massing substances Protects balance |
| Scoopula & Forceps | is used to transfer chemicals Use these instead of your fingers!! are used to pick up small, solid items in the laboratory |
| Spot Plate | has a number of small "wells" Chemicals are placed into the wells, and reactions are observed Allows for “Microscale” experiments |
| Funnel | A Funnel is used to channel liquids or fine-grain substances into containers with small openings |
| Safety Glasses | must be worn at ALL times to protect eyes Wears of eye glasses should use the googles over his/her glasses |
| Wash Bottle | is a squeezable bottle with a nozzle and screw top lid Used to rinse various pieces of laboratory equipment Different colored bottles contain varying types of liquids |
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