Lab #7 Report Chemical

Lab 7 Purpose The purpose of this essay is to analyze known dissolving agents of Ba(NO3)2, Ca(NO3)2, Mg(NO3)2 and Sr(NO3)2 (alkaline earths) and known solutions of NaBr, NaCl and NaI (halogens). Then we are given an cabalistic solution to determine what ions are present. Materials 1. Test tobacco pipes 2. Test subway carrier 3. Pipet 4. 1 M H2SO4 5. 0. 1 M Na(NO3)2 6. 0. 1 M Ca(NO3)2 7. 1 M Na2CO3 8. 0. 25 M (NH4)2C2O4 9. 0. 1 M KIO3 10. bromine piss system 11. Chlorine water 12. Iodine water 13. 0. 1 M NaCl 14. 0. 1 M NaBr 15. 0. 1 M NaI 16. extraterrestrial (E) MethodsAlkaline Earths 1. washout the ladder renders of any residue 2. tally 12 drops of 1m H2SO4 to four analyse 3. Then add 12 drops of 0. 1m Ba(NO3)2 to one outpouring pipework containing 1M H2SO2 4. score 12 drops of 0. 1m Ca(NO3)2 to other adjudicate tube containing 1M H2SO2 5. Add 12 drops of 0. 1m Mg(NO3)2 to another show tube containing 1M H2SO2 6. Add 12 drops of 0. 1m Sr(NO3)2 to the terminal te st tube containing 1M H2SO2 7. bump and take notes on the reduce or the lack of return in each response 8. Clean the test tubes after victorious notes . take over the procedure, but now with 12 drops of 1m Na2CO3 in each test tube 10. Add 12 drops of 0. 1M Ca(NO3)2 to another test tube containing 1M Na2CO3 11. Add 12 drops of 0. 1M Mg(NO3)2 to another test tube containing 1M Na2CO3 12. Add 12 drops of 0. 1M Sr(NO3)2 to the final test tube containing 1M Na2CO3 13. Observe and take notes on the precipitate or the lack of precipitate in each chemical response 14. Clean the test tubes after winning the notes 15. Repeat the process with 12 drops of 0. 25M (NH4)2C2O4 16.Observe and take notes on the precipitate or the lack of precipitate in each answer 17. Clean the test tubes after fetching the notes 18. Repeat the process with 12 drops of 0. 1M KIO3 19. Observe and take notes on the precipitate or the lack of precipitate in each reaction 20. Clean the test tubes after fetchin g the notes 21. Repeat the process with 12 drops of unknown (E) 22. Observe and take notes on the precipitate or the lack of precipitate in each reaction and deduct if its Ba(NO3)2, Ca(NO3)2, Mg(NO3)2 or Sr(NO3)2. 23. Clean the test tubes after taking the notesHalogens 1. Place a few drops of bromine water into the test tube and add 12 drops of heptane and shake 2. Repeat the process with chlorine water and iodine water and note any glossiness changes in each 3. Clean the test tubes after taking the notes 4. Get three test tubes and add 12 drops of bromine water to each test tube with 12 drops of HEP 5. Add 12 drops of 0. 1M NaCl to the first test tube, 12 drops of 0. 1M NaBr to the second test tube and 12 drops of 0. 1M NaI to the third test tube 6. Note the color of each reaction 7. Clean the test tubes after taking the notes . Repeat the steps but with 12 drops of chlorine water in each test tube with 12 drops of HEP 9. Observe the color of each reaction 10. Clean the test tubes after taking the notes 11. Repeat the steps but with 12 drops of iodine water in each test tube with 12 drops of HEP 12. Observe the color of each reaction 13. Clean the test tubes after taking the notes 14. Repeat the steps but with 12 drops of unknown (E) in each test tube with 12 drops of HEP 15. Observe the color of each reaction and deduct if the unknown is either NaBr, NaCl or NaI ResultsAlkaline H2SO4 Na2CO3 (NH4)2C2O4 KIO3 Ba(NO3)2 Cloudy uninfected Very mucky dust coat White precipitate sits on substructure Tiny amounts of white precipitate Ca(NO3)2 No reaction Cloudy white Cloudy white precipitate No reaction Mg(NO3)2 No reaction White film on top No reaction No reaction Sr(NO3)2 White precipitate on top White profound solution with some white precipitate Faint white cloudy foggy precipitate Little amounts of tiny white precipitate Unknown (E) No reaction White film on top No reaction No reaction .Unknown Alkaline Earth Mg(NO3)2 Reaction betwixt Halogens and Ha lides NaBr NaCl NaI Unknown (E) Bromine water spark faint sensationalistic luxurious chickenhearted Faint yellow tint timid faint yellow Chlorine water Dark yellow amber Colorless Light yellow Dark yellow amber Iodine water Light yellow tint Dark red color Light yellow Light yellow tint Unknown Halogen NaBr Color of Halogens in solution Br2 Cl2 I2 Water Orangey-Brown Colorless Brown HEP Orange Colorless empurple Conclusion