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show working please (2) The vapor pressure of pure ethanol at 20°C is 44.6 mmHg, What...
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...
The vapor pressure of water at 20°C is 17.5 mmHg. What is the vapor pressure of water over a solution prepared by dissolving 25.0 g of glucose (C6H12O6) in 500. mL of water?
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]
The vapour pressure of pure ethanol, CH3CH2OH, is 40.0 mmHg at 19 degree C. Determine the reduced vapour pressure in a solution of 15.0 g of the non-volatile solute urea, OC(NH_2)_2, dissolved in 250. g of ethanol.
please show work? Question 40 (8 points) What is the vapor pressure at 35°C of a solution made by dissolving 44.6.g of sucrose, C12H22011, in 62.3 g of water? The vapor pressure of pure water at 35°C is 42.2 torr.
The vapor pressure of ethanol is 1.00 × 102 mmHg at 34.90°C. What is its vapor pressure at 61.25°C? (ΔHvap for ethanol is 39.3 kJ/mol.) (answer in mmHg)
At 20.0°C, the vapor pressure of ethanol is 45.0 torr, and the vapor pressure of methanol is 92.0 torr. What is the vapor pressure at 20.0°C of a solution prepared by mixing 24.0 g methanol and 80.0 g ethanol?
please show all work 3) The vapor pressure of pure ethanol at 60 °C is 0.459 atm. Raoult's Law predicts that a solution prepared by dissolving 10.0 mmol naphthalene (nonvolatile) in 90.0 mmol ethanol will have a vapor pressure of atm. A) 0.790 B) 0.498 C) 0.367 D) 0.413 E) 0.0918 4) George is making spaghetti for dinner. He places 4.01 kg of water in a pan and brings it to a boil. Before adding the pasta, he adds 58...
The vapor pressure of ethanol is 1.00 × 102 mmHg at 34.90°C. What is its vapor pressure at 52.89°C? (ΔHvap for ethanol is 39.3 kJ/mol.)
The vapor pressure of ethanol is 1.00 x 102 mmHg at 34.90°C. What is its vapor pressure at 52.1°C? (ΔHvap for ethanol is 39.3 kJ/mol.)