b. carbonate ions, CO3, were also present in that solution. Some cations listed in this experiment are not stable in water. They may react with OH- in water to form H and an insoluble hydroxide. How would you keep such an insoluble hydroxide from forming?

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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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1b 

<
D
T
PRE-LABORATORY ASSIGNMENT
C.
Q
Ų
The pre-laboratory assignment must be completed before beginning the laboratory experiment.
a.
Qualitative Analysis: 14 Solutions
4 52
+ :
1. Read the lab manual and finish the following steps:
a. Prepare a list of the cations involved in this experiment that could not be present in a solution if
carbonate ions, CO32-, were also present in that solution.
b. Some cations listed in this experiment are not stable in water. They may react with OH-in water to
form H* and an insoluble hydroxide. How would you keep such an insoluble hydroxide from
forming?
For the 14 unknown solutions with possible ions as given in this experiment, describe a logical
scheme for identifying each anion. Draw a flowchart for the identification if possible.
2. Review relevant class materials and answer the following questions:
You are given a solution that may be either NaCl(aq) or Na₂CO3(aq). Present a scheme to find which
substance was present in the solution.
b. Complete and balance the following equations and explain your results.
BaCl₂(aq) + H₂SO4 (aq) →
AgNO3(aq) + Cl(aq) → ···.
Transcribed Image Text:< D T PRE-LABORATORY ASSIGNMENT C. Q Ų The pre-laboratory assignment must be completed before beginning the laboratory experiment. a. Qualitative Analysis: 14 Solutions 4 52 + : 1. Read the lab manual and finish the following steps: a. Prepare a list of the cations involved in this experiment that could not be present in a solution if carbonate ions, CO32-, were also present in that solution. b. Some cations listed in this experiment are not stable in water. They may react with OH-in water to form H* and an insoluble hydroxide. How would you keep such an insoluble hydroxide from forming? For the 14 unknown solutions with possible ions as given in this experiment, describe a logical scheme for identifying each anion. Draw a flowchart for the identification if possible. 2. Review relevant class materials and answer the following questions: You are given a solution that may be either NaCl(aq) or Na₂CO3(aq). Present a scheme to find which substance was present in the solution. b. Complete and balance the following equations and explain your results. BaCl₂(aq) + H₂SO4 (aq) → AgNO3(aq) + Cl(aq) → ···.
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