Calculate the vapor pressure (in torr) of a solution prepared by dissolving 0.693 mol of a non-volatile solute in 284 g of hexane (86.2 g/mol) at 49.6°C. P°hexane = 400.0 torr at 49.6°C. Report your answer to the tenths place.

Calculate the vapor pressure at 85.0°C of a solution prepared by dissolving 0.450 mol of liquid dibromoethane (C2H4B12, P° = 127 torr) in 1.80 mol of liquid dibromopropane (C3H6Br2, p° = 173 torr). %3D torr

Calculate the vapor pressure at 85.0°C of a solution prepared by dissolving 0.300 mol of liquid dibromoethane (C2H4Br2, P° = 127 torr) in 1.80 mol of liquid dibromopropane (C3H6Br2, P° = 173 torr).

At 20.0∘C, an ideal solution containing 1.80 moles of a nonvolatile solute and 340.0 g of ethanol (C2H5OH) is created. What is the vapor pressure of the solution given that the vapor pressure (in torr) of pure ethanol at this temperature is 43.6 torr? Report your answer using three significant figures

Calculate the vapor pressure of a solution containing 26.8 g of glycerin (C3H8O3) in 114 mL of water at 30.0 °C. The vapor pressure of pure water at this temperature is 31.8 torr. Assume that glycerin is not volatile and dissolves molecularly (i.e., it is not ionic), and use a density of 1.00 g/mL for water. Express the pressure in torr to three significant figures. ►View Available Hint(s) Psolution = Submit IVE ΑΣΦ ? torr

At a certain temperature the vapor pressure of pure acetyl bromide (CH, COBR) is measured to be 410. torr. Suppose a solution is prepared by mixing 71.7 g of acetyl bromide and 87.3 g of heptane (C,H16): Calculate the partial pressure of acetyl bromide vapor above this solution. Round your answer to 3 significant digits. Note for advanced students: you may assume the solution is ideal. torr х10

The vapor pressures of ethanol (C₂H5OH) and 1-propanol (C3H₂OH) at 35 °C are 100. mmHg and 37.6 mmHg, respectively. Assume ideal behavior and calculate the partial pressures of ethanol and 1-propanol at 35 °C over a solution of ethanol in 1-propanol, in which the mole fraction of ethanol is 0.345. Be sure each of your answer entries has the correct number of significant digits. Part 1 of 2 P ethanol Part 2 of 2 P₁- 1- propanol mmHg mmHg x x10 X S Ś

When 4.18 g of a certain molecular compound X are dissolved in 45.0 g of benzene (C6H6), the freezing point of the solution is measured to be 4.9 °C. Calculate the molar mass of X. If you need any additional information on benzene, use only what you find in the ALEKS Data resource. Also, be sure your answer has a unit symbol, and is rounded to the correct number of significant digits. □□ 品 5

Urea (molar mass: 60.056 g/mol) is a non-volatile solute with a solubility of 17.0 g per 100 mL of methanol at 20 ºC. The vapor pressure of pure methanol (molar mass: 32.042 g/mol; density: 0.792 g/mL) at 20 ºC is 95.7 torr. What is the vapor pressure of a saturated solution of urea in methanol at 20 ºC? Select one: a.5.00 torr b.9.83 torr c.85.9 torr d.55.6 torr

Pentane (C5H12) and hexane (C6H14) form an ideal solution. At 25°C the vapor pressures of pentane and hexane are 511 and 150 torr, respectively. A solution is prepared by mixing 25 mL pentane (density, 0.63 g/mL) with 43 mL hexane (density, 0.66 g/mL).   What is the vapor pressure of the resulting solution? Ptotal=         torr   What is the composition by the mole fraction of pentane in the vapor that is in equilibrium with this solution?