Lead is a heavy metal poison found in old paint and in old plumbing. The solubility of lead carbonate in water is 3.87 x 10³ M. Write the mass action expression and calculate the equilibrium constant. Here the equilibrium constant is written as Kp which is the solubility product a. constant. b. To a solution of Pb2+ with a concentration of 3.87 x 108 M is added ammonium hydroxide with a concentration of [OH] of 1 x 108 M. Will a precipitate form which is Pb(OH)2? Ksp for Pb(OH)2 is 1.2 x 10-15. c. What will be the Pb2+ concentration in Part a if 0.1 M Na2CO3 is added. (assume no change in solution volume).
Lead is a heavy metal poison found in old paint and in old plumbing. The solubility of lead carbonate in water is 3.87 x 10³ M. Write the mass action expression and calculate the equilibrium constant. Here the equilibrium constant is written as Kp which is the solubility product a. constant. b. To a solution of Pb2+ with a concentration of 3.87 x 108 M is added ammonium hydroxide with a concentration of [OH] of 1 x 108 M. Will a precipitate form which is Pb(OH)2? Ksp for Pb(OH)2 is 1.2 x 10-15. c. What will be the Pb2+ concentration in Part a if 0.1 M Na2CO3 is added. (assume no change in solution volume).
Chemistry
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ISBN:9781305957404
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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I need help answering number 5
![### Problem 5: Solubility and Chemical Reactions of Lead Compounds
**Background:**
Lead is a heavy metal poison found in old paint and plumbing. The solubility of lead carbonate in water is \(3.87 \times 10^{-5}\,M\).
**Questions:**
**a. Mass Action Expression and Equilibrium Constant**
Write the mass action expression and calculate the equilibrium constant. Here, the equilibrium constant is written as \(K_{sp}\), which is the solubility product constant.
**b. Solution Reaction with Hydroxide**
To a solution of \(Pb^{2+}\) with a concentration of \(3.87 \times 10^{-8}\,M\), ammonium hydroxide is added with a concentration of \([OH^-]\) of \(1 \times 10^{-8}\,M\). Will a precipitate form which is \(Pb(OH)_2\)? The solubility product constant (\(K_{sp}\)) for \(Pb(OH)_2\) is \(1.2 \times 10^{-15}\).
**c. Effect of Sodium Carbonate Addition**
What will be the \(Pb^{2+}\) concentration in Part (a) if 0.1 M Na2CO3 is added? (Assume no change in solution volume.)
**Graph/Diagram Explanation:**
There are no graphs or diagrams included in this problem set.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fec00f85d-2845-42aa-a887-b2442479ff82%2Fccca3082-0c49-41d0-be56-3cdd49e5c1fd%2Fl9cv9qf_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Problem 5: Solubility and Chemical Reactions of Lead Compounds
**Background:**
Lead is a heavy metal poison found in old paint and plumbing. The solubility of lead carbonate in water is \(3.87 \times 10^{-5}\,M\).
**Questions:**
**a. Mass Action Expression and Equilibrium Constant**
Write the mass action expression and calculate the equilibrium constant. Here, the equilibrium constant is written as \(K_{sp}\), which is the solubility product constant.
**b. Solution Reaction with Hydroxide**
To a solution of \(Pb^{2+}\) with a concentration of \(3.87 \times 10^{-8}\,M\), ammonium hydroxide is added with a concentration of \([OH^-]\) of \(1 \times 10^{-8}\,M\). Will a precipitate form which is \(Pb(OH)_2\)? The solubility product constant (\(K_{sp}\)) for \(Pb(OH)_2\) is \(1.2 \times 10^{-15}\).
**c. Effect of Sodium Carbonate Addition**
What will be the \(Pb^{2+}\) concentration in Part (a) if 0.1 M Na2CO3 is added? (Assume no change in solution volume.)
**Graph/Diagram Explanation:**
There are no graphs or diagrams included in this problem set.
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