1. Part ASolution temperature =24 °CConductivity of instrument grade water = 1.043 uScm!Conductivity of deionised water = 1.74 µScm!Conductivity of tap water =330 μScmlOn the basis of data above comment on conditions of the different water grades.2. The experimental data for electrolytes in Part B are given below:Electrolytec (M)K (ms.cm')HC10.015.06KCI0.011.415NaCl0.011.236CaCl20.012.30КОН0.012.29CH3OH0.010.003K2SO40.012.65Calculate molar conductivity A of each electrolyte solution in Sm/mol above. Correct for theconductivity of deionized water.

Answered: Image /qna-images/answer/f9cd7737-d0d7-4a0f-9842-bec5d3d59750.jpg

Answered: 1. Part A Solution temperature = 24 °C…

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter12: Solutions

Section: Chapter Questions

Problem 12.52QE

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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/mol
Some nonelectrolyte solute (molar mass = 142 g/mol) was dissolved in 150. mL of a solvent (density = 0.879 g/cm3). The elevated boiling point of the solution was 355.4 K. What mass of solute was dissolved in the solvent? For the solvent, the enthalpy of vaporization is 33.90 kJ/mol, the entropy of vaporization is 95.95 J/K mol, and the boiling-point elevation constant is 2.5 K kg/mol.
The density of a 3.75 M aqueous sulfuric acid solution in a car battery is 1.225 g/mL. Express the concentration of the solution in molality, mole fraction H2SO2, and mass percentage of H2SO4.
The 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?
A solution is made by dissolving 0.455 g of PbBr2 in 100 g of H2O at 50C. Based on the data in Table 8-1, should this solution be characterized as a. saturated or unsaturated b. dilute or concentrated
A solution is prepared by dissolving 40.00 g of MgCl2 (f.w. = 95.211 g mol–1), a non-volatile solute, in enough water (m.w. = 18.02 g mol–1) to result in exactly 2 L of solution at 25 °C. Assume the density of the solution is that of pure water (dsolution = 1.000 g mL–1). The ebullioscopic constant (Kb) for water is 0.513 °C m–1. The cryoscopic constant (Kf) for water is 1.86 °C m–1. The vapor pressure of pure water is 0.0313 atm. Determine the osmotic pressure in atm.
A solution is prepared by dissolving 40.00 g of NaCl (f.w. = 58.44 g mol–1), a non-volatile solute, in enough water (m.w. = 18.02 g mol–1) to result in exactly 1 L of solution at 25 °C. Assume the density of the solution is that of pure water (dsolution = 1.000 g mL–1). The ebullioscopic constant (Kb) for water is 0.513 °C m–1. The cryoscopic constant (Kf) for water is 1.86 °C m–1. The vapor pressure of pure water is 0.0313 atm. Determine the following: Boiling point of solution (in °C to two decimal places) Freezing point of solution (in °C to two decimal places) Vapor pressure of the solution (in atm to three decimal places) Osmotic pressure (in atm to three decimal places)
The partial molar volumes of water and ethanol in a solution with H₂O are 17.0 and 57.0 cm³.mol-¹, respectively. Part A AV = Calculate the volume change upon mixing sufficient ethanol with 6.50 mol of water to give this concentration. The densities of water and ethanol are 0.997 and 0.7893 g-cm-³, respectively, at this temperature. Express your answer to two significant figures and include the appropriate units. Submit 17 μA 3 cm³ Previous Answers Request Answer ? = X Incorrect; Try Again; One attempt remaining 0.45 at 25 °C ANSWER 1: Deduction: AV = 0.314 L ANSWER 2: Deduction: AV = 0.31 L ANSWER 3: Deduction: AV = 17 L ANSWER 4: Deduction: AV = 17 cm³ ANSWER 5: Deduction: AV = -17 cm³

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