1. Common Chemistry Lab Equipment

2. A. Well Plate  Used as a “small scale” reaction vessel, where you are only using drops of solutions.

3. B. Scoopula  Scoopula  Used for measuring small amounts of chemicals.  Never stick these directly into a bottle of chemicals. You can contaminate the entire bottle.

4. C. Goggles D. Hose Clamp  Used for eye protection. You will lose points in lab if you don’t.  Hose Clamp (not pictured)

5. E. Wash bottle F. Rubber Stoppers  Use this for “rinsing” chemicals into your reaction vessel.  Not squirting your classmates.  Rubber stoppers (not pictured) are for closing up test tubes.

6. G. Disposable Pipet H. Test Tube Clamp  Disposable Pipet (not pictured) used as a dropper for measuring out liquids.  Test Tube Clamp or Test Tube Holder

7. I. Test Tubes L. Test Tube Rack  Test Tubes are a medium sized reaction vessel, where you are using 1-5 mL or less.

8. J. Graduated Cylinder  Use these to accurately measure liquids in lab.  Never use beakers or flasks to measure.  The answer on the SOL is always GRADUATED CYLINDER.

9. Volume Conversion Factors!  We will work with liters (L) and milliliters (mL) in this class.  1000 mL = 1L;  1000 L = 1 m 3  Cubic centimeters (cm 3 ) and milliliters (mL) are different names for the same amount.  1 mL = 1 cm 3.  1 drop = 0.05 mL.  So, 20 drops = 1 mL.

10. K. Combustion Spoon M. Thermometer  We use Celcius (°C) and Kelvin (K) temperature in Chemistry.  K = °C + 273  Combustion spoon (not pictured).

11. Back Side of Handout N. Tongs  Used for picking up hot pieces of equipment

12. O. Crucible and Lid  Used for STRONG Heating  Use tongs to pick up while heating

13. P. Watchglass  2 uses:  Use as a “plate” to hold solid samples during experiments.  Use as a “lid” to cover a beaker.

14. Q. Funnel  Used with filter paper.  Use for filtration (which is a physical separation technique)  Separates a solid from a liquid.

15. R. Beaker  Used ONLY as a “container” for liquids.  NEVER used for measuring. Lines are not accurate.

16. S. Evaporating Dish  Used for GENTLE heating or NO heating  Use tongs while heating.

17. T. Clay Triangle  Used to safely heat crucibles.  Use with a ring stand and ring clamp (next slide).  Heat crucible using a bunsen burner.

18. U. Ring Clamp  Used as a “platform” for heating things SAFELY.  Use with a Clay Triangle to heat crucibles.

19. V. Wire Gauze  Use this on top of a Ring Clamp for heating beakers or flasks or even evaporating dishes.

20. W. Erlenmeyer Flask  Erlenmeyer is a person’s name and should be capitalized.  Used as a large reaction “vessel” in lab.  You can swirl!

21. X. Ring Stand Z. Utility Clamp  Ring stand is used for building things. Use with ring clamp or other clamps.  Utility clamp is at the bottom (it is fuzzy)

22. Y. Bunsen Burner  Bunsen is a person’s name and should be capitalized.  Used for safely heating things in lab. Flame is 1500°C (2700°F)

23. Bunsen Burner Safety  1. Never walk away from a lit burner.  2. Never leave the gas turned on while the burner is NOT lit.  3. Never leave a test tube (or any glass) directly in the flame while heating.  4. Never point a test tube at someone else while heating.

24. $. Volumetric Pipet  Used for accurately transferring a precisely measured amount of liquid.  Never use your mouth to suck liquid into the pipet. Use the rubber bulb.

25. Volumetric Flask Not on Handout  Used for making very accurate solutions (mixtures).

26. Volumetric Flasks  Beakers/Flasks— accurate to about 5% (50,000 ppm)  Graduated cylinder— accurate to about 1% (10,000 ppm)  Volumetric Flasks— accurate about 0.04% (400 ppm)

27. Glass Stirring Rod Not on Handout  Used for (duh) stirring stuff.  Glass is inert (means doesn’t react).  But they do break. Breaking glass is number 1 accident in lab.

28. Mortar & Pestle Not on Handout  Mortar = bowl and Pestle = stick.  Used for grinding up solids or mixing solids thoroughly.  Pharmacists use these a lot when making customized medicines.

29. sschwartz@city schools.com Be ready for an Equipment Quiz very soon. Be able to identify names and function of pieces of equipment.