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3.) An aqueous solution of Alz(S04), has a freezing point temperature of -7.8585 °C and an...
ch.13 answer each of these please What is the boiling point of an aqueous solution that...
ch.13
answer each of these please
What is the boiling point of an aqueous solution that has a vapor pressure of 22.5 torr at 25°C? (Puo 23.78 torn; Kb = 0,512 °C/m). Express your answer using four significant figures. VO AXO ? c A solution contains 10.55 g of unknown compound (non-electrolyte) dissolved in 50,0 mL of water. (Assume a density of 1.00 g/mL for water.) The freezing point of the solution is -4,35 °C. The mass percent composition of...
1. 1200 mL aqueous solution of 45 g of ethylene glycol and 80 g of sucrose...
1. 1200 mL aqueous solution of 45 g of ethylene glycol and 80 g of sucrose were prepared with a density of 1.37 g/mL. Assume that the solution behaves ideally. Notes: The vapor pressures of water and ethylene glycol at 20 °C are 17.54 torr and 0.06 torr, respectively, and Kb and Kf of water are 0.51 K/m and 1.86 K/m, at 25 °C respectively. a. What is the freezing point of this solution? b. What is the vapor pressure,...
4. An aqueous solution is 20.% glucose by mass (d = 1.078 g/mL at 20 °C)....
4. An aqueous solution is 20.% glucose by mass (d = 1.078 g/mL at 20 °C). Calculate the following: (Some useful constants for water: Kr = 1.86 °C/m and Ko = 0.512 °C/m) [-2.6°C] a) freezing point [100.71 °C] b) boiling point at 1 atm c) osmotic pressure (29 atm]
2. What is the freezing point of an aqueous solution containing 69.5g NaNO3 (MM=85.00g/mol) dissolved in...
2. What is the freezing point of an aqueous solution containing 69.5g NaNO3 (MM=85.00g/mol) dissolved in 175g water? Kf=1.86°C/m for water and assume "ideal" behavior. 10. An RV antifreeze is an aqueous solution containing 5.68 M proplyene glycol (MM=76.09 g/mol). If the density of the antifreeze is 1.080 g/mL, what is the molality of the solution?
1.) A 0.046 M aqueous solution of FeCl, has an osmotic pressure of 4.09 atm at...
1.) A 0.046 M aqueous solution of FeCl, has an osmotic pressure of 4.09 atm at 28°C. a. Calculate the percentage difference of the van't Hoff factor from the ideal value. b. What should be the concentration of this aqueous solution if this is in ideal condition?
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 hypotheti...
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...
2.) An aqueous solution of KI has a boiling point temperature of 100.512°C. Calculate the molarity...
2.) An aqueous solution of KI has a boiling point temperature of 100.512°C. Calculate the molarity concentration of the solution if it has a density of 1.30 g/ml.
1) Calculate the freezing point (°C) of a solution of 50 mL of acetone (CH3COCH3, Molar...
1) Calculate the freezing point (°C) of a solution of 50 mL of acetone (CH3COCH3, Molar Mass = 58.08 g/mol, density 0.784 g/cm3) in 150g of CCl4, whose normal freezing point is -23.0 °C. Given: P = 1 atm, Kf CCl4 = 29.8 °C/m. Please show work. ------------------------------------------------------------------------------------------- 2) Calculate the boiling point (°C) at P = 1 atm of a solution of 25 g of acetone in 100 g of camphor whose normal boiling point is 204 °C. Kb...
8. What is the final boiling point of a 1.25 molal solution of sugar in water?...
8. What is the final boiling point of a 1.25 molal solution of sugar in water? The Kb for water is 0.512 C/m. (For sugar i = l.) 9. A solution was prepared by dissolving 0.52 mol hexane into 400g CCl4. What is the change in freezing point of this solution? Carbon tetrachloride has a freezing point depression constant of 29.8 Cm,and freezes at-23。. 10. A solution was prepared by dissolving 0.26 moles of ethanol (C2HsOH) into 750g Diethyl ether....
The osmotic pressure of an aqueous solution at 300 K is 120 kPa. Calculate the freezing...
The osmotic pressure of an aqueous solution at 300 K is 120 kPa. Calculate the freezing point of the solution.
ch.13
answer each of these please
What is the boiling point of an aqueous solution that has a vapor pressure of 22.5 torr at 25°C? (Puo 23.78 torn; Kb = 0,512 °C/m). Express your answer using four significant figures. VO AXO ? c A solution contains 10.55 g of unknown compound (non-electrolyte) dissolved in 50,0 mL of water. (Assume a density of 1.00 g/mL for water.) The freezing point of the solution is -4,35 °C. The mass percent composition of...
1. 1200 mL aqueous solution of 45 g of ethylene glycol and 80 g of sucrose were prepared with a density of 1.37 g/mL. Assume that the solution behaves ideally. Notes: The vapor pressures of water and ethylene glycol at 20 °C are 17.54 torr and 0.06 torr, respectively, and Kb and Kf of water are 0.51 K/m and 1.86 K/m, at 25 °C respectively. a. What is the freezing point of this solution? b. What is the vapor pressure,...
4. An aqueous solution is 20.% glucose by mass (d = 1.078 g/mL at 20 °C). Calculate the following: (Some useful constants for water: Kr = 1.86 °C/m and Ko = 0.512 °C/m) [-2.6°C] a) freezing point [100.71 °C] b) boiling point at 1 atm c) osmotic pressure (29 atm]
1.) A 0.046 M aqueous solution of FeCl, has an osmotic pressure of 4.09 atm at 28°C. a. Calculate the percentage difference of the van't Hoff factor from the ideal value. b. What should be the concentration of this aqueous solution if this is in ideal condition?
2.) An aqueous solution of KI has a boiling point temperature of 100.512°C. Calculate the molarity concentration of the solution if it has a density of 1.30 g/ml.
8. What is the final boiling point of a 1.25 molal solution of sugar in water? The Kb for water is 0.512 C/m. (For sugar i = l.) 9. A solution was prepared by dissolving 0.52 mol hexane into 400g CCl4. What is the change in freezing point of this solution? Carbon tetrachloride has a freezing point depression constant of 29.8 Cm,and freezes at-23。. 10. A solution was prepared by dissolving 0.26 moles of ethanol (C2HsOH) into 750g Diethyl ether....
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