Procedure: B. Test for carbonate ion (CO,²) Add 1 mL of 1M Na2CO3 (or your unknown) and 1 mL of 6M HCI to a small test tube. C. Test for sulfate ion (SO,²) Add 1 mL of 0.5 M Na SO. (or your unknown) and 1 mL of 6 M HCI to a small test tube. Next add a few drops of 1 M BaCl2. D. Test for phosphate ion (PO4³) Add 1 mL of 0.5 M Na₂HPO4 (or your unknown) and 1 mL of 6 M HNO3 to a small test tube. Next add a 1 mL of 0.5 M (NH4); MoO, and stir thoroughly. Place the test tube in the hot water bath and continue to stir. E. Test for thiocyanate ion, (SCN) Add 1 mL of 0.5 M KSCN (or your unknown) and 1 mL of 6 M acetic acid (HC2H3O2) to a small test tube. Now add 2 drops of 0.1 M Fe (NO3)3. A dark red solution indicates the presence of SCN-. F. Test for chloride ion, (Cl₂-) Add 1 mL of 0.5 M NaCl (or your unknown) and 1 mL of 6 M HNO3 to a small test tube. Next add 2 to 3 drops of 0.1 M AgNO3. G. Test for nitrate ion, (NO, Add 1 mL of 0.5 M NaNO3 (or your unknown) and 1 mL of 6 M NaOH to a small test tube. Then add a few granules of aluminum metal and put the test tube in the hot water bath. Place a red litmus paper directly above the test tube. |

Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter6: An Introduction To Spectrometric Methods
Section: Chapter Questions
Problem 6.19QAP
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Question

Complete the table 

Procedure:
B. Test for carbonate ion (CO,?)
Add 1 ml of 1M Na,CO: (or your unknown) and1 ml of 6M HCI to a small test
tube.
C. Test for sulfate ion (SO,)
Add 1 ml of 0.5 M Na,SO. (or your unknown) and 1 ml of 6 M HCI to a small
test tube. Next add a few drops of 1 M Baclı.
D. Test for phosphate ion (PO, *)
Add 1 ml of 0.5 M Na;HPO. (or your unknown) and 1 ml of 6 M HNO3 to a
small test tube. Next add a 1 ml of 0.5 M (NH4),MoO, and stir thoroughly. Place
the test tube in the hot water bath and continue to stir.
E. Test for thiocyanate ion, (SCN)
Add 1 ml of 0.5 M KSCN (or your unknown) and 1 ml of 6 M acetic acid
(HC,H;O2) to a small test tube. Now add 2 drops of 0.1 M Fe (NO:)3. A dark red
solution indicates the presence of SCN-.
F. Test for chloride ion, (Cl-)
Add 1 ml of 0.5 M NaCI (or your unknown) and 1 ml of 6 M HNO; to a small
test tube. Next add 2 to 3 drops of 0.1 M AGNO:.
G. Test for nitrate ion, (NO, )
Add 1 ml of 0.5 M NANO: (or your unknown) and 1 ml of 6 M N2OH to a small
test tube. Then add a few granules of aluminum metal and put the test tube in
the hot water bath. Place a red litmus paper directly above the testtube.
Transcribed Image Text:Procedure: B. Test for carbonate ion (CO,?) Add 1 ml of 1M Na,CO: (or your unknown) and1 ml of 6M HCI to a small test tube. C. Test for sulfate ion (SO,) Add 1 ml of 0.5 M Na,SO. (or your unknown) and 1 ml of 6 M HCI to a small test tube. Next add a few drops of 1 M Baclı. D. Test for phosphate ion (PO, *) Add 1 ml of 0.5 M Na;HPO. (or your unknown) and 1 ml of 6 M HNO3 to a small test tube. Next add a 1 ml of 0.5 M (NH4),MoO, and stir thoroughly. Place the test tube in the hot water bath and continue to stir. E. Test for thiocyanate ion, (SCN) Add 1 ml of 0.5 M KSCN (or your unknown) and 1 ml of 6 M acetic acid (HC,H;O2) to a small test tube. Now add 2 drops of 0.1 M Fe (NO:)3. A dark red solution indicates the presence of SCN-. F. Test for chloride ion, (Cl-) Add 1 ml of 0.5 M NaCI (or your unknown) and 1 ml of 6 M HNO; to a small test tube. Next add 2 to 3 drops of 0.1 M AGNO:. G. Test for nitrate ion, (NO, ) Add 1 ml of 0.5 M NANO: (or your unknown) and 1 ml of 6 M N2OH to a small test tube. Then add a few granules of aluminum metal and put the test tube in the hot water bath. Place a red litmus paper directly above the testtube.
Experiment No. 11
QUALITATIVE ANALYSIS OF ANIONS
Table 1. Experimental Data
田
Anions
Experimental Results
Theoretical Results
so.-
PO,
SCN-
Clz-
NO,
Transcribed Image Text:Experiment No. 11 QUALITATIVE ANALYSIS OF ANIONS Table 1. Experimental Data 田 Anions Experimental Results Theoretical Results so.- PO, SCN- Clz- NO,
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ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning