What is the identity of L? CrO42- AsO43- PO43- Hg2+ Q, U, A, L, INo ppt0.1M KMNO4, 6M3M HCIH,SO4 + waterYellow pptCanaryU = White pptQ, A, L, I = No ppt.Ammonium molybdateyellow ppt0.1M KI+ 6M HNO3 (hot bath)6M NHОН6M NH,OH| = Green pptA, L = No pptBrown ppt0.1M AGNO33% H2O2,Excess 6M NH4OHQ = White pptconc. H2SO4Soluble ppt+ acetoneA = No pptL = Yellow ppt0.1MClear solutionConc. NH,OH +K4Fe(CN)61M NAOH +6M HNO3dimethylglyoximeBrown ppt0.1M NaCl1.0М ВаСlzSolubleCherry red pptWhite pptWhite ppt1.0М ВаClzWhite pptInsoluble6М HNO3White ppt0.1 MPb(CH;COOH)2Soluble in 6M HNO3

Qualitative inorganic analysis involves the detection of the anions and cations present in…

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What is the identity of L? CrO42- AsO43- PO43- Hg2+

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

Chapter1: Introduction

Section: Chapter Questions

Problem 1.11QAP

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Question

What is the identity of L?

		CrO42-
		AsO43-
		PO43-
		Hg2+

Q, U, A, L, I
No ppt
0.1M KMNO4, 6M
3M HCI
H,SO4 + water
Yellow ppt
Canary
U = White ppt
Q, A, L, I = No ppt.
Ammonium molybdate
yellow ppt
0.1M KI
+ 6M HNO3 (hot bath)
6M NHОН
6M NH,OH
| = Green ppt
A, L = No ppt
Brown ppt
0.1M AGNO3
3% H2O2,
Excess 6M NH4OH
Q = White ppt
conc. H2SO4
Soluble ppt
+ acetone
A = No ppt
L = Yellow ppt
0.1M
Clear solution
Conc. NH,OH +
K4Fe(CN)6
1M NAOH +
6M HNO3
dimethylglyoxime
Brown ppt
0.1M NaCl
1.0М ВаСlz
Soluble
Cherry red ppt
White ppt
White ppt
1.0М ВаClz
White ppt
Insoluble
6М HNO3
White ppt
0.1 M
Pb(CH;COOH)2
Soluble in 6M HNO3

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