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Which solution has the highest vapor pressure? 0.75 mol of a volatile compound in 750 g...
In a mixture of volatile substances, the vapor pressure of the solution depends on the vapor...
In a mixture of volatile substances, the vapor pressure of the solution depends on the vapor pressure of both substances (solute and solvent). Each component can evaporate, but its vapor pressure is lowered by the presence of the other substance following Rault's law. The vapor pressure of the solvent is calculated using Psolvent = Xsolvent*Posolvent and the vapor pressure of the solute is calculated using Psolute = Xsolute*Posolute. The total vapor pressure can be calculated by Dalton's law of partial...
4) Which solution a, b or c has the highest vapor pressure? Calculate the vapor pressure...
4) Which solution a, b or c has the highest vapor pressure? Calculate the vapor pressure of each. a) 50g of ethanol (CHOH) in 200mL of water. b) 50g of acetone (CH COCH) in 200ml. of water. c) 50g of sodium acetate (NaC HO) in 200ml of water.
The vapor pressure of methanol (32.043 g/mol), CH3OH, is 94 torr at 20 °C. The vapor...
The vapor pressure of methanol (32.043 g/mol), CH3OH, is 94 torr at 20 °C. The vapor pressure of ethanol (46.07 g/mol), C2H5OH, is 44 torr at the same temperature. Calculate the total vapor pressure above a solution of 32.4 g of methanol and 23.9 g of ethanol.
The vapor pressure of a solution containing 38.7 g glycerin (C3H8O3) in 146.2 g ethanol (C2H5OH)...
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
1) The vapor pressure of pure water at 120 °C is 1250 torr. A solution of...
1) The vapor pressure of pure water at 120 °C is 1250 torr. A solution of aniline and water has a vapor pressure of 1.2 atm at 120 °C. Assuming that Raoult’s law is obeyed, what is the mole fraction of aniline in the solution? Please show work. ----------------------------------------------------------------------- 2) Consider the following solutions, all in 1.0 kg of water: 1 mol of KBr, 1.5 mol CuCl2, 2 mol CH3COOH, and 1.5 mol CoCl3. The correct order for the respective...
Which of the following regarding the vapor pressure of a solution containing a nonvolatile solute is...
Which of the following regarding the vapor pressure of a solution containing a nonvolatile solute is NOT correct? A. The amount by which the vapor pressure of the solution is reduced reflects the mole fraction of the solute in the solution. B. The presence of a nonvolatile solute reduces the mole fraction of the pure solvent. C. The condensation rates of the pure solvent and the solution are probably about equal in a closed container. D. The evaporation rate of...
The common laboratory solvent ethanol is often used to purify substances dissolved in it. The vapor pressure of ethanol...
The common laboratory solvent ethanol is often used to purify substances dissolved in it. The vapor pressure of ethanol, CH2CH,OH, is 54.68 mm Hg at 25 °C In a laboratory experiment, students synthesized a new compound and found that when 35.52 grams of the compound were dissolved in 246.7 grams of ethanol, the vapor pressure of the solution was 53.38 mm Hg. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight of this...
Explain2 The vapor pressure of a solution containing 73.6 g glycerin (C_3H_8O_3, Molar mass 92.094) in...
Explain2
The vapor pressure of a solution containing 73.6 g glycerin (C_3H_8O_3, Molar mass 92.094) in 120.7 g of ethanol (C_2H_5OH, Molar mass = 46.068) is 169.3 torr at 50.0 degree C Calculate the vapor pressure of pure ethanol at 40.0 degree C assuming that glycerin is a nonvolatile, nonelectrolyte solute in ethanol.
A sample of 2.00 g of the non-volatile compound urea, CO(NH2)2 (molar mass = 60 g/mol),...
A sample of 2.00 g of the non-volatile compound urea, CO(NH2)2 (molar mass = 60 g/mol), is dissolved in 20.0 grams of water. What is the vapor pressure of water above this solution? The vapor pressure of pure water at the temperature of the experiment is 0.150 atm. a. 0.045 atm b. 0.010 atm c. 0.038 atm d. 0.146 atm e. 0.150 atm
Pure water has a vapor pressure of 24.0 mmHg at 25oC. What is the vapor pressure...
Pure water has a vapor pressure of 24.0 mmHg at 25oC. What is the vapor pressure of a solution containing 0.472 mols glucose, C6H12O6, a non- volatile solute (MW = 180 g mol-1) in 5.56 mols water (MW = 18.0 g/mol)? [Given: Kf (water) = 1.86 0C/molal]
4) Which solution a, b or c has the highest vapor pressure? Calculate the vapor pressure of each. a) 50g of ethanol (CHOH) in 200mL of water. b) 50g of acetone (CH COCH) in 200ml. of water. c) 50g of sodium acetate (NaC HO) in 200ml of water.
The common laboratory solvent ethanol is often used to purify substances dissolved in it. The vapor pressure of ethanol, CH2CH,OH, is 54.68 mm Hg at 25 °C In a laboratory experiment, students synthesized a new compound and found that when 35.52 grams of the compound were dissolved in 246.7 grams of ethanol, the vapor pressure of the solution was 53.38 mm Hg. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight of this...
Explain2
The vapor pressure of a solution containing 73.6 g glycerin (C_3H_8O_3, Molar mass 92.094) in 120.7 g of ethanol (C_2H_5OH, Molar mass = 46.068) is 169.3 torr at 50.0 degree C Calculate the vapor pressure of pure ethanol at 40.0 degree C assuming that glycerin is a nonvolatile, nonelectrolyte solute in ethanol.
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