Macmillan Learning O A solution containing a mixture of metal cations was treated as outlined. 1. Dilute HCI was added and a precipitate formed. The precipitate was filtered off. 2. H₂S was bubbled through the acidic solution. Again, a precipitate formed and was filtered off. 3. The pH was raised to about 9 and H₂S was again bubbled through the solution. No precipitate formed. 4. Finally, sodium carbonate was added. A precipitate formed and was filtered off. What can be said about the presence of each of these groups of cations in the original solution? Cation group Ag+, Pb²+, Hg2+ Bi³+, Cd²+, Cu²+, Hg²+, Pb²+, Sb +, Sn²+, Sn+ AP+, Co²+, Cr, Fe²+, Fe³+, Ni²+, Mn²+, Zn²+ Ba²+, Ca²+, Mg²+, SP2²+ Li+, Na+, K+, NH; Description form insoluble chlorides form acid-insoluble sulfides form base-insoluble sulfides or hydroxides form insoluble carbonates completely soluble Present in the original solution? Answer Bank At least one of these ions was present. All of these ions were present. unknown None of these ions were present.
Macmillan Learning O A solution containing a mixture of metal cations was treated as outlined. 1. Dilute HCI was added and a precipitate formed. The precipitate was filtered off. 2. H₂S was bubbled through the acidic solution. Again, a precipitate formed and was filtered off. 3. The pH was raised to about 9 and H₂S was again bubbled through the solution. No precipitate formed. 4. Finally, sodium carbonate was added. A precipitate formed and was filtered off. What can be said about the presence of each of these groups of cations in the original solution? Cation group Ag+, Pb²+, Hg2+ Bi³+, Cd²+, Cu²+, Hg²+, Pb²+, Sb +, Sn²+, Sn+ AP+, Co²+, Cr, Fe²+, Fe³+, Ni²+, Mn²+, Zn²+ Ba²+, Ca²+, Mg²+, SP2²+ Li+, Na+, K+, NH; Description form insoluble chlorides form acid-insoluble sulfides form base-insoluble sulfides or hydroxides form insoluble carbonates completely soluble Present in the original solution? Answer Bank At least one of these ions was present. All of these ions were present. unknown None of these ions were present.
Chemistry
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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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Question 25 of 35-Module 7 H X
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Cation group
Ag+, Pb²+, Hg2+
Bi³+, Cd²+, Cu²+, Hg²+,
Pb²+, Sb³ +, Sn²+, Sn¹+
Al³+, Co²+, Cr³+. Fe²+
Fe³+, Ni²+, Mn²+, Zn²+
Ba²+, Ca²+, Mg2+, S²+
Lit, Na+, K+, NH
A solution containing a mixture of metal cations was treated as outlined.
1. Dilute HCI was added and a precipitate formed. The precipitate was filtered off.
2. H₂S was bubbled through the acidic solution. Again, a precipitate formed and was filtered off.
3. The pH was raised to about 9 and H,S was again bubbled through the solution. No precipitate formed.
4. Finally, sodium carbonate was added. A precipitate formed and was filtered off.
What can be said about the presence of each of these groups of cations in the original solution?
Description
form insoluble chlorides
form acid-insoluble sulfides
form base-insoluble sulfides
or hydroxides
form insoluble carbonates
completely soluble
Topic: Week 4 Discussion
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Present in the original solution?
Answer Bank
At least one of these ions
was present.
All of these ions
were present.
unknown
None of these ions
were present.
Hint
☆
Expert Solution
Step 1
This is part of qualitative inorganic analysis, in which we followed the procedure as follows;
1. Dilute HCI was added and a precipitate formed. The precipitate was filtered off
2. H2S was bubbled through the acidic solution. Again, a precipitate formed and was filtered off.
3. The pH was raised to about 9 and H2S was again bubbled through the solution. No precipitate formed.
4. Finally, sodium carbonate was added. A precipitate formed and was filtered off.
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