0% vill 2 Equilibrium: Lead carbonate, a mostly insoluble compound, is found in lead pipes and it protects lead from entering the water supply. However, lead carbonate is sparing soluble (this means it dissolves a little). Once the lead carbonate has dissolved it is able to dissociate into lead and carbonate ions. PbCO, (s) Pb2+ (aq) + CO2 (aq) 7. Write the equilibrium constant for the reaction above. (1 pt) 8. The equilibrium constant for the above reaction is 3.97 x 107, does this favour the reactants or the products? (1 pt) Carbonate ions can react with acid (H*) in the water supply to form water and carbon dioxide. 9. Write a balanced equation describing this process. (2 pts) If there is more acid in the system, it will react with the carbonate, reducing the concentration of carbonate ions in the water supply. Looking back to the dissociation of lead carbonate, if the concentration of carbonate ions in solution is decreasing, 10. What direction does the equilibrium move (towards the products or towards the reactants)? (1 pt) 11. What happens to the concentration of lead ions? (1 pt)

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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Equilibrium:
Lead carbonate, a mostly insoluble compound, is found in lead pipes and it protects lead
from entering the water supply. However, lead carbonate is sparing soluble (this means it
dissolves a little). Once the lead carbonate has dissolved it is able to dissociate into lead
and carbonate ions.
PbCO, (s) Pb2+ (aq) + CO2 (aq)
7. Write the equilibrium constant for the reaction above. (1 pt)
8. The equilibrium constant for the above reaction is 3.97 x 107, does this favour the
reactants or the products? (1 pt)
Carbonate ions can react with acid (H*) in the water supply to form water and carbon
dioxide.
9. Write a balanced equation describing this process. (2 pts)
If there is more acid in the system, it will react with the carbonate, reducing the
concentration of carbonate ions in the water supply. Looking back to the dissociation of lead
carbonate, if the concentration of carbonate ions in solution is decreasing,
10. What direction does the equilibrium move (towards the products or towards the
reactants)? (1 pt)
11. What happens to the concentration of lead ions? (1 pt)
Transcribed Image Text:0% vill 2 Equilibrium: Lead carbonate, a mostly insoluble compound, is found in lead pipes and it protects lead from entering the water supply. However, lead carbonate is sparing soluble (this means it dissolves a little). Once the lead carbonate has dissolved it is able to dissociate into lead and carbonate ions. PbCO, (s) Pb2+ (aq) + CO2 (aq) 7. Write the equilibrium constant for the reaction above. (1 pt) 8. The equilibrium constant for the above reaction is 3.97 x 107, does this favour the reactants or the products? (1 pt) Carbonate ions can react with acid (H*) in the water supply to form water and carbon dioxide. 9. Write a balanced equation describing this process. (2 pts) If there is more acid in the system, it will react with the carbonate, reducing the concentration of carbonate ions in the water supply. Looking back to the dissociation of lead carbonate, if the concentration of carbonate ions in solution is decreasing, 10. What direction does the equilibrium move (towards the products or towards the reactants)? (1 pt) 11. What happens to the concentration of lead ions? (1 pt)
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