2. Introduction to Lab #18….. Without mysteries, life would be very dull indeed.

3. Ten Numbered T-Tubes Each with a single substance Given a part of today and tomorrow to prepare No external reagents, testing materials. Smell and sight can be used

4. All sets contain hydrochloric and sulfuric acid as well as ammonia and sodium hydroxide All others are nitrates, chlorides or sulfates some held in an acid environment

5. Preliminary Work wikipedia webelements Use your text, Appendix II, or the on- line resources wikipedia or webelements. NR, no reaction P, precipitate (followed by D if it dissolves) State colors if appropriate H, heat evolved G or S for gas or smoke formed

6. 0.1 M Al(NO 3 ) 3 0.1 M BaCl 2 0.1 M NiSO 4 0.1 M BiCl 3 (in 3 M HCl) 6 M NaOH 3 M H 2 SO 4

7. Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 ?

10. Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 ? NR ?

12. Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 NR ? ?

14. Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 NR ? ?

16. Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 NR P,D ? NR ?

18. Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 NR P,DNR ? P ? ? (white)

20. Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 NR P,DNR P ? sl P ? P (white)

22. Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 NR P,DNR P sl P P (green) NR P P,H NR H Test Tube #4 (green) (white)

23. 4+1 no reaction 4+2 no reaction 4+3 green PPT 4+5 no reaction 4+6 white PPT Mixing Tests – First Series

24. Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 NR P,DNR P sl P P (green) NRP P,H NR H Test Tube #4 Test Tube #3 Test Tube #6 4+3 green PPT4+6 white PPT (green) (white)

25. 3+1 sol’n becomes hot 3+2 white PPT, sol’n becomes hot 3+5 no rection Mixing Tests – Second Series

26. Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 Al(NO 3 ) 3 BaCl 2 NiSO 4 BiCl 3 NaOH H 2 SO 4 NR P,DNR P sl P P (green) NR P P,H NR H Test Tube #4 Test Tube #3 Test Tube #6 Test Tube #1 Test Tube #2 Test Tube #5 3+1 sol’n becomes hot 3+2 white PPT, sol’n becomes hot (white) (green)