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3) Fish generally need an O₂ concentration in water of 4 mg/L for survival. What partial pressure of oxygen above the water is needed to obtain this concentration at 0.0 °C? -0.0002

3) Fish generally need an O₂ concentration in water of 4 mg/L for survival. What partial pressure of oxygen above the water is needed to obtain this concentration at 0.0 °C? -0.0002

Chemistry
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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**Problem Statement:** 3) Fish generally need an O₂ concentration in water of 4 mg/L for survival. What partial pressure of oxygen above the water is needed to obtain this concentration at 0.0 °C? **Physical Properties:** - The molar mass of O₂ is 31.998 g/mol. - The solubility of O₂ is 2.21 M at Pₒ₂ = 3.2 atm and 0.0 °C. **Possible Discussion Questions:** - How does gas solubility change with pressure? Why? - What does the pressure above the water/solution mean? - What does a large Henry’s Law constant mean? - What types of species would have large Henry’s Law constants? - What is partial pressure? - What is Dalton’s Law? - Why do gases generally have low solubility in water?
Transcribed Image Text:**Problem Statement:** 3) Fish generally need an O₂ concentration in water of 4 mg/L for survival. What partial pressure of oxygen above the water is needed to obtain this concentration at 0.0 °C? **Physical Properties:** - The molar mass of O₂ is 31.998 g/mol. - The solubility of O₂ is 2.21 M at Pₒ₂ = 3.2 atm and 0.0 °C. **Possible Discussion Questions:** - How does gas solubility change with pressure? Why? - What does the pressure above the water/solution mean? - What does a large Henry’s Law constant mean? - What types of species would have large Henry’s Law constants? - What is partial pressure? - What is Dalton’s Law? - Why do gases generally have low solubility in water?
--- **Understanding Oxygen Requirements for Aquatic Life** **Question 3:** Fish generally need an \( \text{O}_2 \) concentration in water of 4 mg/L for survival. What partial pressure of oxygen above the water is needed to obtain this concentration at 0.0 °C? Answer: Approximately 0.0002 --- *Explanation:* To ensure the survival of fish, the water must contain a sufficient concentration of dissolved oxygen. At a temperature of 0.0 °C, a specific partial pressure of oxygen is necessary to achieve the required concentration of 4 mg/L. This partial pressure is indicated as approximately 0.0002, ensuring adequate levels of oxygen for aquatic life. ---
Transcribed Image Text:--- **Understanding Oxygen Requirements for Aquatic Life** **Question 3:** Fish generally need an \( \text{O}_2 \) concentration in water of 4 mg/L for survival. What partial pressure of oxygen above the water is needed to obtain this concentration at 0.0 °C? Answer: Approximately 0.0002 --- *Explanation:* To ensure the survival of fish, the water must contain a sufficient concentration of dissolved oxygen. At a temperature of 0.0 °C, a specific partial pressure of oxygen is necessary to achieve the required concentration of 4 mg/L. This partial pressure is indicated as approximately 0.0002, ensuring adequate levels of oxygen for aquatic life. ---
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