A solution contains 59.0 g of heptane (C7H16) and 44.5 g of octane (C8H18) at 25 ∘C. The vapor pressures of pure heptane and pure octane at 25 ∘C are 45.8 torr and 10.9 torr, respectively. Assuming ideal behavior, calculate each of the following. (Note that the mole fraction of an individual gas component in an ideal gas mixture can be expressed in terms of the component's partial pressure.)
The vapor pressure of heptane in the mixture.
The vapor pressure of octane in the mixture.
The total pressure above the solution.
What is the mass percent concentration of heptane in vapour phase?
What is the mass percent concentration of octane in vapour phase?
Why is the composition of the vapor different from the composition of the solution?
A solution contains 59.0 g of heptane (C7H16) and 44.5 g of octane (C8H18) at 25...
A solution contains 48.5 g of heptane (C7H16)(C7H16) and 44.0g of octane (C8H18)(C8H18) at 25∘C The vapor pressures of pure heptane and pure octane at 25 ∘C are 45.8 torr t o r r and 10.9 torr t o r r , respectively. Assuming ideal behavior, calculate each of the following. (Note that the mole fraction of an individual gas component in an ideal gas mixture can be expressed in terms of the component's partial pressure.) a)The vapor pressure of...
A mixture of hydrocarbons contains 32.5%32.5% heptane,heptane, C7H16,C7H16, 12.2%12.2% nonane,nonane, C9H20,C9H20, and 55.3%55.3% octane,octane, C8H18.C8H18. The mixutre is combusted in an excess of oxygen. What mass of CO2CO2 is generated from the combustion of 16.8 kg16.8 kg of the mixture?
A mixture of hydrocarbons contains 37.8%heptane,C7H16, 14.4%nonane, C9H20, and 47.8%octane, C8H18. The mixture is combusted in an excess of oxygen. What mass of CO2 is generated from the combustion of 13.8 kg13.8 kg of the mixture? mass of CO2: _______kg kg
1. A mixture of hydrocarbons contains 30.5%, heptane, C7H16, 11.5%, nonane, C9H20, and 58.0%,octane, C8H18. The mixture is combusted in an excess of oxygen. What mass of CO2 is generated from the combustion of 20.0 kg of the mixture? mass of CO2CO2: kg 2. The concept of determining which reactant is limiting and which is in excess is akin to determining the number of sandwiches that can be made from a set number of ingredients. Assuming that a cheese sandwich...
1)A mixture contains 25 g of cyclohexane (C6H12) and 44 g of 2-methylpentane (C6H14). The mixture of liquids is at 35 oC . At this temperature, the vapor pressure of pure cyclohexane is 150 torr, and that of pure 2-methylpentane is 313 torr. Assume this is an ideal solution. What is the mole fraction of cyclohexane in the liquid phase? 2) What is the vapor pressure (in torr) of cyclohexane above the solution? 3)What is the mole fraction of cyclohexane...
A solution of benzene (C6H6) and toluene (C7H8) is 29.0 % benzene by mass. At 25∘C the vapor pressures of pure benzene and pure toluene are 94.2 and 28.4 torr, respectively. Part A Assuming ideal behavior, calculate the vapor pressure of benzene in the mixture. Express the pressure to three significant figures and include the appropriate units. Part B Assuming ideal behavior, calculate the vapor pressure of toluene in the mixture. Express the pressure to three significant figures and include...
A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 269 torr . Pure pentane and hexane have vapor pressures of 425 torr and 151 torr, respectively, at room temperature. What is the mole fraction of hexane? (Assume ideal behavior.)
A solution of benzene (C6H6) and toluene (C7H8) is 29.0 % benzene by mass. The vapor pressures of pure benzene and pure toluene at 25∘C are 94.2 and 28.4 torr, respectively. Assuming ideal behavior, calculate the total vapor pressure above the solution. Express the pressure to three significant figures and include the appropriate units.
Toluene and pyridine form ideal solutions. Consider solution of toluene and pyridine prepared at 25°C. Assuming that the mole fractions of toluene and pyridine in the vapor phase are equal, calculate the composition of the solution. At 25°C the vapor pressures of toluene and pyridine are 28 and 21 torr, respectively. X 42.8 Xtoluene 0.428 Xpyridine
A solution of 1.699 g of dichloromethane and 9.953 g of dibromomethane at 25°C was experimentally measured to have a solution vapor pressure of 42.3 kPa. The vapor pressures of the pure solvents, dichloromethane and dibromomethane, at 25°C are published by NIST to be 435- and 44.4-mm Hg, respectively. 1) Calculate the vapor pressure of each component and the total pressure of the solution assuming the behavior of this solution is ideal. 2) Based on the comparison of two total...