please show work? Question 40 (8 points) What is the vapor pressure at 35°C of a...
help pelase Calculate the volume in millilitres of a 0.875 M sodium sulfate solution containing 8.90 g of sodium sulfate? Question 19 (8 points) How many g of water should be added to 8.27 g of acetic acid (HC2H302) to give a .175 m aqueous acetic acid solution? Question 20 (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 has a vapor pressure of 47.1 torr at 37 oC. What is the vapor pressure of water over a solution that is made by dissolving 50.0 g of glycerin, C3H8O3, in 100.0 mL of water at 37 oC? The density of water at 37 oC is 0.993 g/mL. Please show all steps clearly :)
show working please (2) The vapor pressure of pure ethanol at 20°C is 44.6 mmHg, What is the vapor pressure in the mmHg of a solution with 16.0 g of glucose (C6H1206) dissolved in 80.0 g of ethanol (CH3OH) at 20°C.
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.
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...
What will the solution vapor pressure be for a solution of 53.09 mol of sucrose (C12H22O11) dissolved in 1.000L of water at 20.0 °C? The vapor pressure of pure water at 20.0 °C is 17.5 torr
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...
8. (6 pts) Determine the vapor pressure at 25 C of an aqueous ethylene glycol (CIO) solution at is 14.8% C,H602 by mass. The vapor pressure of pure water at 25 °C is 23.8 torr A) 3.52 tor B) 22.7 torr C) 1.14 torr D) 20.3 torr Show work:
Calculate the vapor pressure of a solution made by dissolving 94.5 g of urea (molar mass= 60.06 g/mol) in 214.5 mL of water at 35°C (Hint: The vapor pressure of pure water at 35°C is given in the table below. Assume the density of the solution is 1.00 g/mL.) What is the magnitude of vapor-pressure lowering? mmHg
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?