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After adding 6M HCl to the unknown solution, the resulting solid is separated from the liquid. Hot water is next added to the solid. Not mixing the solid real well with the hot water could result in false-positive results for which ion(s)?

After adding 6M HCl to the unknown solution, the resulting solid is separated from the liquid. Hot water is next added to the solid. Not mixing the solid real well with the hot water could result in false-positive results for which ion(s)?

Chemistry
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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After adding 6M HCl to the unknown solution, the resulting solid is separated from the liquid. Hot water is next added to the solid. Not mixing the solid real well with the hot water could result in false-positive results for which ion(s)? 

 

 

Hg,2+, Ag*, Pb2*, K*, Ca2", AP+ Add 6M HCI (until ppt is complete) ppt solution Hg2Cl2, AgCI, PbCl2 (white), (white), (white) K+, Ca2+, Al3+ Extract ppt with hot H,O (3 times, 1 mL per time) Continue analysis for Kt, Ca2+, AP+ ppt hot H,O Hg2Cl2, AgCI Pb2+ (white), (white) Add 1M K2CrO4 3M NH (10 drops) (6 or 7 drops) cool in ice-bath PbCrO4 (yellow solid) ppt solution + [Ag{NH),j* (black), (white) (colorless) 6M HNO3 (until acidic) AgCl (white solid)
Transcribed Image Text:Hg,2+, Ag*, Pb2*, K*, Ca2", AP+ Add 6M HCI (until ppt is complete) ppt solution Hg2Cl2, AgCI, PbCl2 (white), (white), (white) K+, Ca2+, Al3+ Extract ppt with hot H,O (3 times, 1 mL per time) Continue analysis for Kt, Ca2+, AP+ ppt hot H,O Hg2Cl2, AgCI Pb2+ (white), (white) Add 1M K2CrO4 3M NH (10 drops) (6 or 7 drops) cool in ice-bath PbCrO4 (yellow solid) ppt solution + [Ag{NH),j* (black), (white) (colorless) 6M HNO3 (until acidic) AgCl (white solid)
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