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Incomplete Lab Report

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Jul 23rd, 2019
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  1. Step 1. There is no first step.
  2.  
  3. Step 2. Activate your hot plate, set it to five.
  4.  
  5. Step 3. Acquire your unknown, NOTE ITS NUMBER, and weigh out between an eighth of and a grams of it in your two-fifths liter beaker.
  6.  
  7. Step 4. Dissolve your unknown in a tenth of a liter of water.
  8.  
  9. Step 5. Slowly, add fifty milliliters of Pb(NO3)2, while stirring.
  10.  
  11. Step 6. Place this on your hot plate, do not let it boil, and stir steadily until the liquid turns transluscent.
  12.  
  13. Step 7. Place this on a hot pad to cool. Add a drop of Pb(NO3)2. If nothing happens, you're done. If anything does, add ten more milliliters and repeat step six.
  14.  
  15. Step 8. After some time, place the beaker in an ice bath and let it cool for a sixth of an hour.
  16.  
  17. Step 9. Arm your ring stand. Knick a Büchner funnel, the support thereof, a filter flask and a touch of filter paper. Weigh the filter paper.
  18.  
  19. Step 10. Assemble the funnel and corresponding equipment. Place filter in FUNnel. Activate vacuum, spray with deionized water. If any sound is made, fix the seal.
  20.  
  21. Step 11. Apply beaker to funnel, properly.
  22.  
  23. Step 12. Clear all solids through the filter, if any appear.
  24.  
  25. Step 13. Wash the funnel thrice with a hundredth of a liter of deionized water each time. Let dry for five minutes.
  26.  
  27. Step 14. As above, but substitute C2H3O2^- for deionized water, and wait only two-fifths as long.
  28.  
  29. Step 15. Weigh the precipitate.
  30.  
  31. Step 16. Place beaker in drying oven.
  32.  
  33. Step 17. Bin the unused liquid in a large waste beaker. Return the equipment you will no longer use, and tidy up a bit.
  34.  
  35. Step 18. Clean your Büchner funnel properly, and return it after drying.
  36.  
  37. Step 19. Weigh your precipitate after removing it from the drying oven.
  38.  
  39. Step 20. Calculate the mass of the iodide that was in the sample.
  40.  
  41. Step 21. Calculate the standard deviation.
  42.  
  43. Step 22. Tidy up.
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