An ethanol-water solution is 40.00% ethanol by mass and has a density of 0.9450 (g/cm3) at 25.00°C. The density of pure ethanol is 0.7850 (g/cm3) and the density of pure water is 0.9970(g/cm3) at this temperature. At these conditions, the partial molar volume of ethanol is 55.00 (cm3/mol) and the partial molar volume of water is 17.5 (cm3/mol).
a. Calculate the total volume of a 1000.0 g solution assuming both ideal and non-ideal conditions.
b. What does the difference between the volumes calculated in Part a. tell you about the interactions between the water and ethanol molecules in this solution? Explain this difference based on the molecular structure of and electron distribution within these molecules.
An ethanol-water solution is 40.00% ethanol by mass and has a density of 0.9450 (g/cm3) at 25.00°C. The density of pure...
9) An ethanol-water solution is 40.00% ethanol by mass and has a density of 0.9450 (g/cm3) at 25.00°C. The density of pure ethanol is 0.7850 (g/cms) and the density of pure water is 0.9970(g/cms) at this temperature. At these conditions, the partial molar volume of ethanol is 55.00 (cm3/mol) and the partial molar volume of water is 17.5 (cmmol). a. Calculate the total volume of a 1000.0 g solution assuming both ideal and non-ideal conditions. b. What does the difference...
9) An ethanol-water solution is 40.00% ethanol by mass and has a density of 0.9450 (g/cms) at 25.00°C. The density of pure ethanol is 0.7850 (g/cms) and the density of pure water is 0.9970(g/cms) at this temperature. At these conditions, the partial molar volume of ethanol is 55.00 (cmx/mol) and the partial molar volume of water is 17.5 (cm3/mol). a. Calculate the total volume of a 1000.0 g solution assuming both ideal and non-ideal conditions. b. What does the difference...
The partial molar volumes of water and ethanol in a solution with xH2O = 0.45 at 25 ∘C are 17.0 and 57.5 cm3 mol−1, respectively. Calculate the volume change upon mixing sufficient ethanol with 6.18 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.
The density (mass divided by volume) of pure water is 1.00 g/cm3 that of whole blood is 1.05 g/cm3 and the density of seawater is 1.03 g/cm3. Part A What is the mass of 4.00 L of pure water? Part B What is the mass of 4.00 L of whole blood? Part C What is the mass of 4.00 L of seawater?
What is the partial molar volume of ethanol (in units of mL/mol) in a solution with water if 168 mL of ethanol is added to 650. mL of water and the volume increases by only 153 mL ? Take the density of ethanol to be 0.789 g/mL.
10) a. Calculate the solubility in (mol/L) of CO2(g) inside a can containing 355 cm; of water at 25.00°C if the pressure of the CO2(g) inside the can is 2.50 bar. The density of water is 0.9970 (g/cm3) at 25.00°C. b. Now suppose you pop open the can in Flagstaff and the pressure above the solution is reduced to 0.779 bar. How many moles of CO2(g) will eventually be released from the solution into the atmosphere?
5. Ethanol and methanol are form an ideal solution at 20 °C. Vapor pressure of pure ethanol and pure methanol at 20 °C is 44.5 and 88.7 mmHg, respectively. If 100 g of ethanol and 100 g of methanol are mixed into a solution, calculate: (a) the mol fractions of ethanol and methanol in the solution, (b) the partial pressures of ethanol and methanol and total pressure of the solution, and (c) the mol fraction of methanol in a vapor...
please answer 1.) The partial molar volume of water and ethanol in a solution with Xx20=0.60 at 25°C are 17.0 and 57.0 cm mol-, respectively. Calculate the volume change upon mixing sufficient ethanol with 2.00 mol of water to give this concentration. The densities of water and ethanol are 0.997 and 0.7893 g cm , respectively, at this temperature.
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent? A hypothetical solution forms between a solid and a liquid. The values of the thermodynamic quantities involved in the process are shown in the following table. Action Enthalpy separation of solute 11.5 kJ/mol separation of solvent 21.8 kJ/mol formation of solute-solvent interactions -86.7 kJ/mol solute...
A solution of 48.5% H2SO4H2SO4 by mass has a density of 1.39 g/cm3g/cm3 at 293 KK. A 24.4 cm3cm3 sample of this solution is mixed with enough water to increase the volume of the solution to 99.4 cm3cm3 . Find the molarity of sulfuric acid in the obtained solution.