Answered: I am doing a prelab and I need help…

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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I am doing a prelab and I need help with the questions. I want to make sure I did everything right. We are using the group 1 ions: Hg2+, Ag+, Pb2+

Expert Solution

Step 1

1.The group (I) cations are $A g^{+}, P b^{2 +} a n d H {g_{2}}^{2 +}$ , they all form form white precipitate, corresponding chlorides when treated with dilute HCl.

However only precipitated lead chloride is soluble in hot water.

Therefore,

ions present is(although still needs confirmation): $P b^{2 +}$

ions absent is/are : $A g^{+} a n d H {g_{2}}^{2 +}$

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