introduction to lab #18….. without mysteries, life would be very dull indeed
TRANSCRIPT
Introduction to Lab #18…..
Without mysteries, life would be very dull indeed.
• 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
• 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
Preliminary Work
• Use your text, Appendix II, or the on-line resources wikipediawikipedia or webelementswebelements.
• 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
• 0.1 M Al(NO3)3
• 0.1 M BaCl2
• 0.1 M NiSO4
• 0.1 M BiCl3 (in 3 M HCl)
• 6 M NaOH
• 3 M H2SO4
Al(NO3)3
BaCl2
NiSO4
BiCl3
NaOH
H2SO4
Al(N
O 3) 3
BaCl 2
NiSO 4
BiCl 3
NaOH
H 2SO 4
?
Al(NO3)3
BaCl2
NiSO4
BiCl3
NaOH
H2SO4
Al(N
O 3) 3
BaCl 2
NiSO 4
BiCl 3
NaOH
H 2SO 4
?NR ?
Al(NO3)3
BaCl2
NiSO4
BiCl3
NaOH
H2SO4
Al(N
O 3) 3
BaCl 2
NiSO 4
BiCl 3
NaOH
H 2SO 4
NR ?NR ?
Al(NO3)3
BaCl2
NiSO4
BiCl3
NaOH
H2SO4
Al(N
O 3) 3
BaCl 2
NiSO 4
BiCl 3
NaOH
H 2SO 4
NR NR ?NR ?
Al(NO3)3
BaCl2
NiSO4
BiCl3
NaOH
H2SO4
Al(N
O 3) 3
BaCl 2
NiSO 4
BiCl 3
NaOH
H 2SO 4
NR NR NR P,D ?NR?
Al(NO3)3
BaCl2
NiSO4
BiCl3
NaOH
H2SO4
Al(N
O 3) 3
BaCl 2
NiSO 4
BiCl 3
NaOH
H 2SO 4
NR NR NR P,D NR?P ?NR ?(white)
Al(NO3)3
BaCl2
NiSO4
BiCl3
NaOH
H2SO4
Al(N
O 3) 3
BaCl 2
NiSO 4
BiCl 3
NaOH
H 2SO 4
NR NR NR P,D NRP NR ?sl P ?P(white) (white)(white)
Al(NO3)3
BaCl2
NiSO4
BiCl3
NaOH
H2SO4
Al(N
O 3) 3
BaCl 2
NiSO 4
BiCl 3
NaOH
H 2SO 4
NR NR NR P,D NRP NR sl P P
(green) NR P NRP,H NR
H
Test Tube #4(green)
(white) (white)(white)
(white)
4+1 no reaction
4+2 no reaction
4+3 green PPT
4+5 no reaction
4+6 white PPT
Mixing Tests – First Series
Al(NO3)3
BaCl2
NiSO4
BiCl3
NaOH
H2SO4
Al(N
O 3) 3
BaCl 2
NiSO 4
BiCl 3
NaOH
H 2SO 4
NR NR NR P,D NRP NR sl P P
(green) NR P NRP,H NR
H
Test Tube #4
Test Tube #3
Test Tube #6
4+3 green PPT 4+6 white PPT
(green)
(white) (white)
(white)
(white)
3+1 sol’n becomes hot
3+2 white PPT, sol’n becomes hot
3+5 no rection
Mixing Tests – Second Series
Al(NO3)3
BaCl2
NiSO4
BiCl3
NaOH
H2SO4
Al(N
O 3) 3
BaCl 2
NiSO 4
BiCl 3
NaOH
H 2SO 4
NR NR NR P,D NRP NR sl P P
(green) NR P NRP,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 hot3+2 white PPT, sol’n becomes hot
(white) (white)
(white)
(white)
(green)