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Lab Equipment and Safety Procedures

Lab Equipment and Safety Procedures. Yes, you should take notes!. Funnel. used to pour liquid through a smaller opening Used for filtration Filter paper- fold in half, fold in half again, open b/w 1 and 3, place in filter. Scoopula. Used to pick up small amounts of substances or to stir.

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Lab Equipment and Safety Procedures

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  1. Lab Equipment and Safety Procedures Yes, you should take notes!

  2. Funnel • used to pour liquid through a smaller opening • Used for filtration • Filter paper- fold in half, fold in half again, open b/w 1 and 3, place in filter

  3. Scoopula • Used to pick up small amounts of substances or to stir

  4. Bunsen Burner • Gas valve perpendicular=OFF • Gas valve parallel=ON • Tie back hair and loose clothing • TURN OFF WHEN NOT BEING USED • Used for heating, sterilization, and combustion

  5. Test Tube Brush • Used to clean glassware

  6. Watch Glass • Used as another surface

  7. Test Tube Holder • Made of wire and used to hold tube when you can't hold it directly

  8. Well Plate • Holds several small amounts of liquids

  9. Goggles • Must be on at ALL times during a lab

  10. Pipet • To use squeeze bulb • RINSE THOROUGHLY BETWEEN THE TRANSFER OF DIFFERING CHEMICALS TO ELIMINATE CONTAMINATION

  11. Test Tube • holds small amounts of liquids

  12. Evaporating Dish • Used to heat or cool • Also used to crush chemicals

  13. Crucible • Used to hold substances for heating • Made of steel

  14. Test Tube Rack • Divots for holding test tubes in upright position • Pegs for drying of test tubes in upside down position

  15. Hot Plate • TURN OFF AND UNPLUG WHEN NOT IN USE • Used for heat

  16. Graduated Cylinder • Read from bottom of MENISCUS (U shape) • A tall glass cylinder with a range of calibrated markings that is used for visually MEASURING THE VOLUMES OF LIQUIDS

  17. Erlenmeyer Flask • Used in filtrations and distillations

  18. Ceramic Triangle • Used to hold for heating

  19. Clamp • Clamps rubber tubing to stop the flow of liquid • An extension off of the ring stand used to hold other lab equipment

  20. Mortar and Pestle • Used to grind • May have one in your kitchen

  21. Tongs • Used to move hot objects like crucibles

  22. Striker • Used to light Bunsen burner

  23. Iron Ring • Attached to ring stand • Supports beakers on the ring stand so that they may be heated

  24. Beaker • A cylinder container used to hold and transfer liquids • Several sizes

  25. Wire Gauze • Allows for more even and gradual heating of glassware • Place on iron ring

  26. Thermometer • Be careful… they roll off tables!

  27. Ring Stand • The base supporting the iron ring

  28. Triple Beam Balance • Measures mass – amount of matter in an object • Be sure all weights are pushed completely to the left • Start with highest weight and work your way down • You want the beam to balance in the middle of the arm

  29. Beaker Tongs • Large, curved tongs • Special tongs used for handling hot glassware

  30. Wash Bottle • Filled with water • Plastic, with plastic straw • Squeeze gently to rinse glassware

  31. Rubber Stopper • Holds thermometer in place while measuring temperature • Used to seal glassware to prevent contaminants from entering

  32. Timer • Keep track of how long it takes a reaction to take place • Measure in seconds

  33. Hot Glove • Move hot items

  34. A Few extra reminders… • Kill jar – labeled container for disposing of chemicals that cannot be rinsed down the sink • If you have extra reagent, do NOT return to container. This will cause CONTAMINATION of the entire container. Dispose of it properly. • If glassware is broken at your lab station, please CALL YOUR TEACHER. DO NOT ATTEMPT TO CLEAN IT UP YOURSELF!

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