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Nitrobenzene,
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Chapter 14 Solutions
EBK GENERAL CHEMISTRY
- Carbon tetrachloride (CCl4) and benzene (C6H6) form ideal solutions. Consider an equimolar solution of CCl4 and C6H6 at 25C. The vapor above the solution is collected and condensed. Using the following data, determine the composition in mole fraction of the condensed vapor. Substance Gfo C6H6(l) 124.50 kJ/mol C6H6(g) 129.66 kJ/mol CCI4(l) 65.21 kJ/mol CCI4,(g) 60.59 kJ/molarrow_forwardThe vapor pressures of several solutions of water-propanol (CH3CH2CH2OH) were determined at various compositions, with the following data collected at 45C: H2O Vapor pressure(torr) 0 74.0 0.15 77.3 0.37 80.2 0.54 81.6 0.69 80.6 0.83 78.2 1.00 71.9 a. Are solutions of water and propanol ideal? Explain. b. Predict the sign of Hsoln for water-propanol solutions. c. Are the interactive forces between propanol and water molecules weaker than, stronger than, or equal to the interactive forces between the pure substances? Explain. d. Which of the solutions in the data would have the lowest normal boiling point?arrow_forwardCarbon tetrachloride (CCl4) boils at 76.8C and has a density of 1.59 g/mL. (a) A solution prepared by dissolving 0.287 mol of a nonelectrolyte in 255 mL of CCl4 boils at 80.3C. What is the boiling point constant (kb) for CCl4? (b) Another solution is prepared by dissolving 37.1 g of an electrolyte (MM=167g/mol) in 244 mL of CCl4. The resulting solution boils at 85.2C. What is i for the electrolyte?arrow_forward
- s) At 20 °C the vapor pressure of benzene is 10 kPa and that of methylbenzene is 2.8 · kPa. If this mixture is an ideal solution, what is the total vapor pressure of an equimolar mixture of the two components? Note that equimolar means that there are the same number of moles of both substances.arrow_forwardConsider a body of water in equilibrium with solid calcium sulfate, CaSo4, for which Ksp= 3.0 x 10^-5 at 25 degrees C. Calculate the solubility, in g/L, of calcium sulfate in water assuming that other reactions are negligible. *arrow_forwardThe sealed containers of fizzy drinks contain dissolved CO2. This dissolved CO2 is in equilibrium with a small quantity of gaseous CO2 at the top of the container. (a) The partial pressure of CO2 gas in a 250 cm3 can of fizzy drink is 3.0 atm at 25 0C. What is the concentration of CO2 in the fizzy drink? (b) If the can contain only the mass of CO2 calculated in part (ii) as a gas, calculate the pressure in the can when it is stored at 25 0C. (c) The maximum pressure that a can of fizzy drink can withstand is 7 atm. Using the graph below, determine the maximum temperature at which a can, can be stored safely. (concentration=0.093M)arrow_forward
- In a study designed to prepare new gasoline-resistant coat-ings, a polymer chemist dissolves 6.053 g of poly(vinyl alcohol)in enough water to make 100.0 mL of solution. At 25°C, the os-motic pressure of this solution is 0.272 atm. What is the molar mass of the polymer sample?arrow_forwardThe vapor pressure of water at 30 °C is 4.24 kPa. Calculate the vapor pressure if 95.0 g of xylose, C₅H₁₀O₅(l), is added to 100.0 mL of water. The density of water at 30 °C is 0.996 g・mL⁻¹.arrow_forwardWhat is the boiling point of the automobile radiator fluid prepared by mixing 1.02 Lof ethylene glycol (HOCH2CH2OH, density = 1.114 %3D g/mL) with 1.18 Lof water (density = 1.000 g/mL)? The Kp of water is 0.520°C/m. °Carrow_forward
- what is the molar mass of toluene if 0.85g of toluent depresses freezing pt 1.00 x102 g of benzene by 0.47 degrees C; Kf=5.12degrees C/m.arrow_forwardThe partial pressure of CO2 gas above the liquid in a bottle of champagne at 20°C is 5.5 atm. What is the solubility of CO2 in champagne? Assume Henry’s law constant is the same for champagne as for water: at 20°C, kH = 3.7 x 10-2 mol/L⋅atm.arrow_forwardThe solubility of CoCl2.6H2O in methanol (CH3OH) is 38.5 g per 100 g of methanol (CH3OH) at 20oC. Express this solubility in molality.arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
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