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
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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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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