vapor pressure of solution = moles fraction of solvent x vapor pressure of pure solvent
moles of ethanol = 120.7/46.068 = 2.62 mols
moles of glycerin = 73.6/92.094 = 0.80 mols
Total moles = 3.42 mols
moles fraction of ethanol = 2.62/3.42 = 0.766
vapor pressure of pure ethanol = 169.3/0.766 = 221.0 torr
Explain2 The vapor pressure of a solution containing 73.6 g glycerin (C_3H_8O_3, Molar mass 92.094) in...
The vapor pressure of a solution containing 38.7 g glycerin (C3H8O3) in 146.2 g ethanol (C2H5OH) is 40.4 torr and 20 degrees C. Calculate the vapor pressure of pure ethanol at 20 degrees C assuming that glycerin is a nonvolatile, nonelectrolyte solute in ethanol. Vapor pressure = _________ torr
calculate the vapor pressure of a solution containing 28.5 g of glycerin in 118 mL of water at 30.0 C. the vapor pressure of pure water at this temperature is 31.8 torr. Assume that glycerin is not volatile and dissloves molecularly and use a density of 1.00 g/mL for the water.
Calculate the vapor pressure of a solution containing 27.3 g of glycerin (C3H8O3) in 117 mL of water at 30.0 ∘C. The vapor pressure of pure water at this temperature is 31.8 torr. Assume that glycerin is not volatile and dissolves molecularly (i.e., it is not ionic) and use a density of 1.00 g/mL for the water.
Glycerin, C3HgO3, is a nonvolatile liquid. What is the vapor pressure of a solution made by adding 163 g glycerin to 338 mL H20 at 39.8°C? The vapor pressure of pure water at 39.8°C is 54.74 torr and its density is 0.992 g/cm² Psoin 28 torr
Activity 1: Ch. 13 New Material Clusters of 3 or 4 Vapor Pressure Problem: Glycerin (C3H803) is a nonvolatile nonelectrolyte with a density of 1.26 g/mL at 25 °C Calculate the vapor pressure at 25 °C of a solution made by adding 50.0 mL of glycerin to 500.0 mL of water. The vapor pressure of pure water at 25 °C is 23.8 torr, and its density is 1.00 g/mL. Equation Henry's Law Problem: Calculate the concentration of CO2 in a...
Glycerin C3H8O3, is a nonvolatile liquid. What is the vapor pressure of a solution made by addition 164 g of glycerin to 338 mL of H2O at 39.8 °C? The vapor pressure of pure water at 39.8 °C is 54.74 torr and its density is 0.992 g/mL. Show all work
Calculate the vapor pressure of a solution containing 27.7 gg of glycerin (C3H8O3)(C3H8O3) in 130 mL of water at 30.0 ∘C∘C. The vapor pressure of pure water at this temperature is 31.8 torr. Assume that glycerin is not volatile and dissolves molecularly (i.e., it is not ionic) and use a density of 1.00 g/mLg/mL for the water.
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...
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...
The vapor pressure of pure water at 25.0 °C is 23.76 torr. The vapor pressure of a solution containing 5.40 g of a nonvolatile substance in 90.0 g of water is 23.32 torr. What is the molecular weight of the solute?