CATION CONFIRMATORY TEST OBSERVATION ADDED REAGENT(S) OBSERVATIONS Excess NH3 NVR KSCN NVR K4Fe(CN)6 NVR K3Fe(CN)6 NVR Na2C2O4 NVR NaOH (in evaporating dish) Litmus paper: red to blue ANION CONFIRMATORY TEST OBSERVATION ADDED REAGENT(S) OBSERVATIONS HNO3, Fe(NO3)3 Blood red aqueous layer; colorless toluene layer HNO3, KMnO4 Peach aqueous layer; colorless toluene layer (to the ppt) CH3COOH White ppt does not dissolve MgCl2 NVR 6M H2SO4, FeSO4, 18M H2SO4 NVR Select one or more: NH4+ CO32- Fe3+ SO42- Cu2+ NO3- Ca2+ I- Br- PO43- Zn2+ SCN-
CATION CONFIRMATORY TEST OBSERVATION ADDED REAGENT(S) OBSERVATIONS Excess NH3 NVR KSCN NVR K4Fe(CN)6 NVR K3Fe(CN)6 NVR Na2C2O4 NVR NaOH (in evaporating dish) Litmus paper: red to blue ANION CONFIRMATORY TEST OBSERVATION ADDED REAGENT(S) OBSERVATIONS HNO3, Fe(NO3)3 Blood red aqueous layer; colorless toluene layer HNO3, KMnO4 Peach aqueous layer; colorless toluene layer (to the ppt) CH3COOH White ppt does not dissolve MgCl2 NVR 6M H2SO4, FeSO4, 18M H2SO4 NVR Select one or more: NH4+ CO32- Fe3+ SO42- Cu2+ NO3- Ca2+ I- Br- PO43- Zn2+ SCN-
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
CATION CONFIRMATORY TEST OBSERVATION
|
ADDED REAGENT(S) |
OBSERVATIONS |
|
Excess NH3 |
NVR |
|
KSCN |
NVR |
|
K4Fe(CN)6 |
NVR |
|
K3Fe(CN)6 |
NVR |
|
Na2C2O4 |
NVR |
|
NaOH (in evaporating dish) |
Litmus paper: red to blue |
ANION CONFIRMATORY TEST OBSERVATION
|
ADDED REAGENT(S) |
OBSERVATIONS |
|
HNO3, Fe(NO3)3 |
Blood red aqueous layer; colorless toluene layer |
|
HNO3, KMnO4 |
Peach aqueous layer; colorless toluene layer |
|
(to the ppt) CH3COOH |
White ppt does not dissolve |
|
MgCl2 |
NVR |
|
6M H2SO4, FeSO4, 18M H2SO4 |
NVR |
Select one or more:
NH4+
CO32-
Fe3+
SO42-
Cu2+
NO3-
Ca2+
I-
Br-
PO43-
Zn2+
SCN-
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