There are two different types of reactions that NaI might undergo with concentratedsulfuric acid in Part E. Describe and write balanced equations for both possibilities. From Part E: Reactions with NaI and NaCl17. CAUTION: 18 M H2SO4 is extremely caustic. Handle it with care.18. This part will utilize the “Testing for an Acidic or Basic Gas” technique described in Appendix B.1419. Collect about 2 dropper’s worth of 18 M H2SO4 in a small tube and take it to your workstation for this part;don’t perform the following reactions in the main hood where this acid is kept.20. Place a small quantity (about the same amount of solid used for part D above) of NaI in a clean dryevaporating dish. Place the same amount of NaCl in a separate dish.23. Lift one of the watch glasses just enough to add one dropper’s worth* of 3 M H2SO4 to the salt inside andthen quickly replace it.25. Clean the dishes out and set them up as you did before with solid NaI and NaCl, and fresh pieces of litmuspaper. Add acid to the salts as you did previously, but use concentrated (18 M) H2SO4 instead of 3 M.
There are two different types of reactions that NaI might undergo with concentrated
sulfuric acid in Part E. Describe and write balanced equations for both possibilities.
From Part E: Reactions with NaI and NaCl
17. CAUTION: 18 M H2SO4 is extremely caustic. Handle it with care.
18. This part will utilize the “Testing for an Acidic or Basic Gas” technique described in Appendix B.
14
19. Collect about 2 dropper’s worth of 18 M H2SO4 in a small tube and take it to your workstation for this part;
don’t perform the following reactions in the main hood where this acid is kept.
20. Place a small quantity (about the same amount of solid used for part D above) of NaI in a clean dry
evaporating dish. Place the same amount of NaCl in a separate dish.
23. Lift one of the watch glasses just enough to add one dropper’s worth* of 3 M H2SO4 to the salt inside and
then quickly replace it.
25. Clean the dishes out and set them up as you did before with solid NaI and NaCl, and fresh pieces of litmus
paper. Add acid to the salts as you did previously, but use concentrated (18 M) H2SO4 instead of 3 M.
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