Perfluorocarbons (PFCs), hydrocarbons with all the H re-placed by F, have very weak cohesive forces. One unusual appli-cation shows a mouse surviving submerged in O₂-saturated PFCs. (a) At 298 K, perfluorohexane (C₆F₁₄, M=338 g/mol,d=1.674 g/mL) in equilibrium with 101,325 Pa of O₂ has a mole fraction of O₂ of 4.28X10⁻³. What is the kH in mol/Latm?(b) According to one source, the kH for O₂ in water at 25°C is 756.7 L atm/mol. What is the solubility of O₂- in water at 25°C in ppm? (c) Rank the kH values in descending order for O₂- in water,ethanol, C₆F₁₄, and C₆H₁₄. Explain your ranking.
Perfluorocarbons (PFCs), hydrocarbons with all the H re-placed by F, have very weak cohesive forces. One unusual appli-cation shows a mouse surviving submerged in O₂-saturated PFCs. (a) At 298 K, perfluorohexane (C₆F₁₄, M=338 g/mol,d=1.674 g/mL) in equilibrium with 101,325 Pa of O₂ has a mole fraction of O₂ of 4.28X10⁻³. What is the kH in mol/Latm?(b) According to one source, the kH for O₂ in water at 25°C is 756.7 L atm/mol. What is the solubility of O₂- in water at 25°C in ppm? (c) Rank the kH values in descending order for O₂- in water,ethanol, C₆F₁₄, and C₆H₁₄. Explain your ranking.
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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Perfluorocarbons (PFCs), hydrocarbons with all the H re-placed by F, have very weak cohesive forces. One unusual appli-cation shows a mouse surviving submerged in O₂-saturated PFCs. (a) At 298 K, perfluorohexane (C₆F₁₄, M=338 g/mol,d=1.674 g/mL) in equilibrium with 101,325 Pa of O₂ has a mole fraction of O₂ of 4.28X10⁻³. What is the kH in mol/Latm?(b) According to one source, the kH for O₂ in water at 25°C is 756.7 L atm/mol. What is the solubility of O₂- in water at 25°C in ppm? (c) Rank the kH values in descending order for O₂- in water,ethanol, C₆F₁₄, and C₆H₁₄. Explain your ranking.
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