A solution contains dissolved sugars at a total concentration of 0.28molL at 25∘C. What pressure (torr) must be applied to prevent osmotic flow of pure water into the solution through a membrane permeable only to water molecules?
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A solution contains dissolved sugars at a total concentration of 0.28molL at 25∘C. What pressure (torr)...
A solution contains naphthalene (C10H8) dissolved in hexane (C6H14) at a concentration of 11.17 % naphthalene by mass. Calculate the vapor pressure at 25 ∘C of hexane above the solution. The vapor pressure of pure hexane at 25 ∘C is 151 torr. Express the answer using three significant figures.
q16 An aqueous solution containing glucose has a vapor pressure of 19.9 torr at 25°C. What would be the vapor pressure of this solution at 45°C? The vapor pressure of pure water is 23.8 torr at 25°C and 71.9 torr at 45°C. Vapor pressure torr If the glucose in the solution were substituted with an equivalent amount (moles) of NaCl, what would be the vapor pressure at 45°C? Vapor pressure torr
a) The vapor pressure of pure water at 30°C is 31.8 torr. An aqueous solution of urea had a vapor pressure of 29.3 torrat the same temperature. What is the mole fraction of urea in the solution? b) How many grams of sucrose, C12H22O11(MW=342), must be dissolved in 552 g H2O (MW=18.016) to give a vapor pressure 2.0 torr lower than of pure H2O at 20°C? The VP of H2O at 20°C is 17.5 torr.
A membrane permeable only to water separates a 0.01 M solution of sucrose from a 0.001 M one. On which solution must pressure be applied to bring the system into equilibrium? Calculate this osmotic pressure. Assume ideal solutions, 25 ◦C.
At 25 ∘C, the osmotic pressure of a solution of the salt XY is 60.8 torr . What is the solubility product of XY at 25 ∘C?
Predict the vapor pressure in torr at 25 degrees C of a solution prepared by mixing 16.8 g sodium phosphate with 87.15 mL of water. Assume the density of water to be 0.977 g/cm3 . The vapor pressure of pure water at 25 degrees is 23.76 torr
74 Percent Concentration -The amount of solute dissolved in a fixed amount of solvent is called the concentration of the solution. Concentrations are typically expressed as Mass al.) (% m/m) which is the mass of the solute (g) divided by the mass of the solution [solute+ solvent] (g)x 1000/0; or as Volume ol.) (% v/v ) which is the volume of the solute in a fixed volume of solution (1O0mL of solution) x 1000/0; or less commonly in the laboratory,...
Determine the vapor pressure of a solution at 25°C that contains 76.6 g of glucose (C6H12O6) in 250.0 mL of water. The vapor pressure of pure water at 25°C is 23.8 torr. Please show work...
Review Constant A solution contains naphthalene (C H ) dissolved in hexane ( H ) at a concentration of 10 14 % naphthalene by mass You may want to reference (Pages 558.563) Section 136 while completing this problem Part A Calculate the vapor pre 25 of hexane above the solution. The vapor pressure of pure hexane at 25 "Cis 151 torr Express the answer using three significant figures. 70 AED RO? Submit Request Answer
When 4.33g of a nonelectrolyte solute is dissolved in water to make 205 mL of solution at 21 C, the solution exerts an osmotic pressure of 891 torr. What is the molar concentration of the solution? How many moles of solute are in the solution? What is the molar mass of the solute?