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Chemistry
234
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Chem 234 Check-In Procedure
You will not be charged for stocking your drawer during this initial check of its contents. After this, however, you will be charged for replacing any damaged or missing items. You MUST have the contents of your locker checked by a TA or a storeroom manager upon your termination of enrollment in Chem 234 or your completion of this course. Failure to have your locker checked will result in a fine of ten dollars. This fine will be in addition to the charges that will be made for replacing any broken or missing equipment. Finally, you are responsible for the cleanliness of your own work area. For safety reasons, keep it clean!
1. Remove the equipment in your drawer, and check it against the Equipment List on the last page of the syllabus.
2. Return any extra equipment you find in your drawer to the storeroom manager in 469 Noyes Lab.
3. Mark on the Equipment List any items you find broken or missing. Remember to check for "star" cracks in glassware. Make sure that your thermometer is not cracked, and that the O-ring is inside the thermometer adapter. Also check to see that the four indentions at the bottom of your distilling column are intact.
4. Bring your completed Equipment List to the storeroom manager in room 469 Noyes Lab. Also bring him any repairable damaged equipment for replacement. He will replace your damaged equipment with good items and will provide you with any items you have found missing. Your drawer should now have a full set of equipment as listed on the Equipment List.
5. Return all checked items to your drawer. Matches, rubber bulbs, and glass stirring rods should stay in your drawer.
6. Leave the Bunsen burner on the top of your desk. Leave the Thiele tube in the clamp provided for it above your work area. DO NOT put the Bunsen burner, Thiele tube, or vacuum hoses in your locker. All ironware is to be kept in the bins at the ends of the lab. If you use these items during a laboratory session, remember to return them to the proper bins at the end of the laboratory session. DO NOT put them in your locker. All tubing (except that on the steam bath or Bunsen burner) and wire gauze should be kept in the boxes at the east and west ends of the lab.
To identify the names of equipment consult the display just inside the door or the equipment list shown below.
Chemistry 234 equipment display in 464 Noyes Lab.
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Chem.
234 Equipment List
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| 1 Adapter, Bent, 105° 14/20standard taper joint |  |
| 1 Adapter, Distilling, 14/20, w/10/18 Thermometer joint |  |
| 1 Adapter, Teflon, Thermometer,10/18 w/ O-ring |  |
| 2 Beaker, Griffin, w/spout, 30 mL |  |
| 1 Beaker, Griffin, w/spout, 50 mL | |
| 1 Beaker, Griff in, w/spout, 100 mL | |
| 1 Beaker, Griff in, w/spout, 150 mL | |
| 1 Beaker, Griffin, w/spout, 250 mL | |
| 1 Beaker, Griff in, w/spout, 400 mL | |
| 1 Bulb, pipette, pure gum rubber |  |
| 2 Clamps, i.e., Plastic, yellow, for 14/20 joint |  |
| 2 Clips, Tubing, Steel (used to attach gum rubber hoses to glass joints) |  |
| 1 Column, Distilling, 14/20 standard taper joint.,10 x 130 mm, |  |
| 1 Condensor, Leibig, 14/20 standard taper joint |  |
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1 Cylinder, pyrex glass, graduated, 10 mL |
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| 1 Cylinder, poly, graduated, 50 mL | |
| 2 Flask, Erlenmeyer, 25 mL |  |
| 2 Flask, Erlenmeyer, 50 mL |  |
| 2 Flask, Erlenmeyer, 125 mL |  |
| 1 Flask, Erlenmeyer, 250 mL |  |
| 1 Flask, Filter, 125 mL& |  |
| 1 Flask, Pear-shaped, 14/20 standard taper joint, 25 mL |  |
| 1 Flask, Recovery, 14/20 standard taper joint, 25 mL |  |
| 1 Flask, Recovery, 14/20 standard taper joint, 50 mL |  |
| 1 Flask, Recovery, 14/20 standard taper joint, 100 mL |  |
| 1 Funnel, Buchner, Porcelain, #2, 67 mm 01); Includes one rubber stopper w/ center hole |  |
| 1 Funnel, Hirsch, Porcelain, 4/0, 55 mm OD |  |
| 1 Funnel, Polyethylene, 31, 4" x 4" |  |
| 1 Funnel, Powder, P.E., 65 x 15 mm |  |
| 1 Funnel, Separatory, 250 mL,- Includes one each #22 glass stopper & teflon stopcock. (Note: TefIon stopcock has two O-rings. One black rubber O-ring & one white teflon O-ring) |  |
| 1 Glass rod, 9mm x 255mm |  |
| 1 Holder, Test Tube |  |
| 1 Rack, Test Tube |  |
| 1 Spatula, Stainless Steel, double bladed |  |
| 1 Stopper, Glass, 14/20 standard taper joint. |  |
| 6 Test Tube, Pyrex, 13 x 100 mm |  |
| 3 Test Tube, Pyrex, 25 x 150 Mm |  |
| 1 Test Tube, Pyrex, 25 x 200 mm |  |
| 1 Test tube, w/Side-arm, 25 x 200 mm |  |
| 1 Thermometer, -100 to 260°C |  |
| 1 Tube, Drying, Polyethylene |  |
| 1 Wash bottle, Polyethylene, 250 mL |  |
| 1 Watch Glass, Plain, 75 mm diameter |  |