Group II cations: Cu2 , Bi3 , Hg2 , Sn4 , Sb3 The pH is adjusted to 0.5 and thioacetamide is added to an unknown containing Group II cations. A black precipitate is formed, insoluble in NaOH but completely soluble in HNO3. When NH3 is added, a white precipitate forms and the solution turns deep blue.What ion(s) is/are clearly absent?What ion(s) is/are almost certainly present?Write net ionic equations for all observations: GROUP II PRELABNAMEThe pH is adjusted to 0.5 and thioacetamide is added to an unknown containing Group IIcations. A black precipitate is formed, insoluble in NaOH but completely soluble inHNO, When NH, is added, a white precipitate forms and the solution turns deep blue.What ion(s) is/are clearly absent?What ion(s) is/are almost certainly present?Write net ionic equations for all observations.

Qualitative analyses are usually performed to determine cations in solution. In this process…

Answered: Group II cations: Cu2 , Bi3 , Hg2 , Sn4…

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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Group II cations: Cu2 , Bi3 , Hg2 , Sn4 , Sb3

The pH is adjusted to 0.5 and thioacetamide is added to an unknown containing Group II cations. A black precipitate is formed, insoluble in NaOH but completely soluble in HNO3. When NH3 is added, a white precipitate forms and the solution turns deep blue.

What ion(s) is/are clearly absent?

What ion(s) is/are almost certainly present?

Write net ionic equations for all observations:

GROUP II PRELAB
NAME
The pH is adjusted to 0.5 and thioacetamide is added to an unknown containing Group II
cations. A black precipitate is formed, insoluble in NaOH but completely soluble in
HNO, When NH, is added, a white precipitate forms and the solution turns deep blue.
What ion(s) is/are clearly absent?
What ion(s) is/are almost certainly present?
Write net ionic equations for all observations.

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