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%. Hatoms 6.949 + 2159 X 26. A solution of 4.00 g of a nonelectrolyte dissolved in 55.0 g of benzene is found to freeze at 2.32 °C. What is the molar mass of this compound? (need freezing point and freezing point depression of benzene)

%. Hatoms 6.949 + 2159 X 26. A solution of 4.00 g of a nonelectrolyte dissolved in 55.0 g of benzene is found to freeze at 2.32 °C. What is the molar mass of this compound? (need freezing point and freezing point depression of benzene)

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
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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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N₂ molecular CH3CH₂CH₂CH3 molecular NH4NO3 onic KIPO, Toni 23. What is the coordination number of a chromium atom in the body-centered cubic structure of chromium? 181 24. Predict whether each of the following substances would be more soluble in water (polar solvent) or in a hydrocarbon such as heptane (C7H₁6, nonpolar solvent): more sonon Polar vegetable oil Polar isopropyl alcohol water! hydrocarbon Cheptane 25. Solutions of hydrogen in palladium may be formed by exposing Pd metal to H₂ gas. The concentration of hydrogen in the palladium depends on the pressure of H₂ gas applied, but in a more complex fashion than can be described by Henry's law. Under certain conditions, 0.94 g of hydrogen gas is dissolved in 215 g of palladium metal (solution density = 10.8 g/cm³). = M 0. aug H₂ 2.016 g/mol = 0.466 mo Metallic HCI Ionic SIC The work Covalent C (graphite) Covalent network Cm³= 1000 cm Determine the molarity of this solution. Volume Scen Hmojes Salute number moles solute M= Volume solution 0.446 mois #₂ -3.9 M Determine the molality of this solution. matality= 0.47 moves H₂ 2.186 moi/kg 0.215 kg 760 torr ionic potassium bromide Water moles = mares H2₂ 1 mass solvent (kg) 2159 10.8 g (cm³) 120cm³ 2.186 m Determine the percent by mass of hydrogen atoms in this solution. 0.949 7. mass= 6.949 + 2159 X 26. A solution of 4.00 g of a nonelectrolyte dissolved in 55.0 g of benzene is found to freeze at 2.32 °C. What is the molar mass of this compound? (need freezing point and freezing point depression of benzene) X100=0.43%. Hatoms 1200 IL =0 11000 cm³ 27. A 0.500 L sample of an aqueous solution containing 10.0 g of hemoglobin has an osmotic pressure of 5.9 torr at 22 °C. What is the molar mass of hemoglobin? I am - 760 for 0°C 273:15K 5.9 torr lath = 0.00776316 28. A solution contains 5.00 g of urea, CO(NH2)2, a nonvolatile compound, dissolved in 0.100 kg of water. If the vapor pressure of pure water at 25 °C is 23.7 torr, what is the vapor pressure of the solution?
Transcribed Image Text:N₂ molecular CH3CH₂CH₂CH3 molecular NH4NO3 onic KIPO, Toni 23. What is the coordination number of a chromium atom in the body-centered cubic structure of chromium? 181 24. Predict whether each of the following substances would be more soluble in water (polar solvent) or in a hydrocarbon such as heptane (C7H₁6, nonpolar solvent): more sonon Polar vegetable oil Polar isopropyl alcohol water! hydrocarbon Cheptane 25. Solutions of hydrogen in palladium may be formed by exposing Pd metal to H₂ gas. The concentration of hydrogen in the palladium depends on the pressure of H₂ gas applied, but in a more complex fashion than can be described by Henry's law. Under certain conditions, 0.94 g of hydrogen gas is dissolved in 215 g of palladium metal (solution density = 10.8 g/cm³). = M 0. aug H₂ 2.016 g/mol = 0.466 mo Metallic HCI Ionic SIC The work Covalent C (graphite) Covalent network Cm³= 1000 cm Determine the molarity of this solution. Volume Scen Hmojes Salute number moles solute M= Volume solution 0.446 mois #₂ -3.9 M Determine the molality of this solution. matality= 0.47 moves H₂ 2.186 moi/kg 0.215 kg 760 torr ionic potassium bromide Water moles = mares H2₂ 1 mass solvent (kg) 2159 10.8 g (cm³) 120cm³ 2.186 m Determine the percent by mass of hydrogen atoms in this solution. 0.949 7. mass= 6.949 + 2159 X 26. A solution of 4.00 g of a nonelectrolyte dissolved in 55.0 g of benzene is found to freeze at 2.32 °C. What is the molar mass of this compound? (need freezing point and freezing point depression of benzene) X100=0.43%. Hatoms 1200 IL =0 11000 cm³ 27. A 0.500 L sample of an aqueous solution containing 10.0 g of hemoglobin has an osmotic pressure of 5.9 torr at 22 °C. What is the molar mass of hemoglobin? I am - 760 for 0°C 273:15K 5.9 torr lath = 0.00776316 28. A solution contains 5.00 g of urea, CO(NH2)2, a nonvolatile compound, dissolved in 0.100 kg of water. If the vapor pressure of pure water at 25 °C is 23.7 torr, what is the vapor pressure of the solution?
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