1. When Pearl added (NH4)2CO3 solution to an unknown salt solution in basic conditions, the solution remained clear and colorless. Which of the following is the metal ion present in the salt solution? a.Ca2+ b.K+ c.Sr2+ d.Ba2+ 2. The unknown salt solution assigned to Hayoung produced a white precipitate with (NH4)2CO3 (in basic conditions), and the resulting precipitate is soluble in 6 M CH3COOH. Then, she added 3 drops of 1 M K2CrO4 to a portion of the original salt solution, and a yellow precipitate was observed. What is the identity of the yellow precipitate? a.Na2CrO4 b.BaCrO4 c.CaCrO4 d.(NH4)2CrO4
1. When Pearl added (NH4)2CO3 solution to an unknown salt solution in basic conditions, the solution remained clear and colorless. Which of the following is the metal ion present in the salt solution? a.Ca2+ b.K+ c.Sr2+ d.Ba2+ 2. The unknown salt solution assigned to Hayoung produced a white precipitate with (NH4)2CO3 (in basic conditions), and the resulting precipitate is soluble in 6 M CH3COOH. Then, she added 3 drops of 1 M K2CrO4 to a portion of the original salt solution, and a yellow precipitate was observed. What is the identity of the yellow precipitate? a.Na2CrO4 b.BaCrO4 c.CaCrO4 d.(NH4)2CrO4
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter21: Chemistry Of The Main-group Elements
Section: Chapter Questions
Problem 21.199QP
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Question
1. When Pearl added (NH4)2CO3 solution to an unknown salt solution in basic conditions, the solution remained clear and colorless. Which of the following is the metal ion present in the salt solution?
a.Ca2+
b.K+
c.Sr2+
d.Ba2+
2. The unknown salt solution assigned to Hayoung produced a white precipitate with (NH4)2CO3 (in basic conditions), and the resulting precipitate is soluble in 6 M CH3COOH. Then, she added 3 drops of 1 M K2CrO4 to a portion of the original salt solution, and a yellow precipitate was observed. What is the identity of the yellow precipitate?
a.Na2CrO4
b.BaCrO4
c.CaCrO4
d.(NH4)2CrO4
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