The vapor pressure of ethanol (C2H5OH) at 20°C is 44 mmHg, and the vapor pressure of methanol (CH3OH) at the same temperature is 94 mmHg. A mixture of 27.3 g of methanol and 43.1 g of ethanol is prepared and can be assumed to behave as an ideal solution. Calculate the vapor pressure of methanol and ethanol above this solution at 20°C. Be sure to report your answers to the correct number of significant figures. Methanol mmHg Ethanol mmHg Calculate the mol fraction of methanol and ethanol in the vapor above this solution at 20°C. Methanol Ethanol

Q: A solution is made by dissolving a non-volatile, non-electrolyte in water. The vapor pressure of the…

A: The relative lowering of vapor pressure is calculated using the following formula:…

Q: Pentane (C5H12) and hexane (C6H14) form an ideal solution. At 25°C the vapor pressures of pentane…

A: Raoult's Law of Ideal solution states that mole fraction of solvent is directly proportional to the…

Q: The osmotic pressure of an aqueous solution at 309 K is 120 kPa. Calculate the freezing point of the…

A:

Q: Pentane (C, H12) and hexane (C,H14) form an ideal solution. At 25°C the vapor pressures of pentane…

A: We have given that at 25°C P°(C5H12) = 511 torr P°(C6H14) = 150 torr Volume of Pentane = 25 mL…

Q: Calculate the molal concentration of a solution of 44.9 g of naphthalene, C10H8, in 175 g of…

A: Please find your solution below : Molality is a measure of concentration which is defined as the…

Q: Pentane ( CH2) and hexane ( CH14) form an ideal solution. At 25°C the vapor pressures of pentane and…

A: The no of moles of pentane and hexane are calculated as follows: Mass = Density × Volume n…

Q: Assuming all of the following solutions are ideal, which will have the highest vapor pressure at…

A: Vapor pressure is the pressure exerted by the vapors above the surface of liquid at equilibrium…

Q: The vapor pressure of an aqueous solution is found to be 19.4 mmHg at 25 °C. What is the mole…

A:

Q: 1.20 mol of a nonvolatile, nonelectrolyte hydrocarbon is dissolved in 1,115.7 g of benzene. What is…

A: Elevation in Boiling point is the rise in the boiling point of the solution on addition of solute to…

Q: A glucose solution contains 53.8 g of glucose (molar mass = 180.18 g/mol) in 455 g of water. Given a…

A: Depression in freezing point is given by the relationship: ∆Tf=Kf.m…

Q: 1. Which aqueous solution would have the lowest vapor pressure at 250⁰C? a. 1M NaCl c. 1M glucose…

A: Note: As per our guidelines, we are supposed to answer only one question. Please repost the other…

Q: Calculate the vapor pressure of a solution prepared by dissolving 90.0 g of naphthalene, C10H8 (a…

A: According to Raoult's law: "The vapor pressure of a solution containing non-volatile solute is equal…

Q: solution is prepared by dissolving 0.0125 moles of insulin in 1000 mL of water.   Calculate the…

A: The Question is based on the concept of solutions. we have to calculate osmotic pressure of the…

Q: Suppose the freezing point of a solution of 2.00 g of an unknown molecular substance in 10.00 g of…

A: We know, depression in freezing point is given by  ∆Tf=Kf×mwhere ∆Tf=depression in…

Q: Pentane (C; H12) and hexane (C6H14) form an ideal solution. At 25°C the vapor pressures of pentane…

A:

Q: the freezing point of the solution be?  Calculation sheet attached.

A: Given: The melting (freezing point) point of carbon disulfide = -111.5 deg C. The freezing point…

Q: What is the vapor pressure of 1000 g of a water solution at 25 Celsius that contains 124.0 g of the…

A:

Q: aqueous solution containing 34.9 g of an unknown molecular (non-electrolyte) compound in 153.7 g of…

A: Weight of non - electrolyte = 34.9 gm Weight of water = 153.7 gm = 0.1537 kg (1kg = 1000g) Freezing…

Q: The vapor pressure of ethanol, C2H5OH is 100.0 torr at 35 °C. Calculate the vapor pressure of the…

A: The number of moles of ethanol and alpha naphthol in the given solution is calculated using equation…

Q: The vapor pressure of methanol, CH3OH, is 94 torr at 20 °C. The vapor pressure of ethanol, C2H5OH,…

A: Raoult's law The law states that partial pressure of a solution is equal to  the mole fraction…

Q: At 40°C, the vapor pressure of pure carbon tetrachloride(CCl4) is 0.293 atm and the vapor pressure…

A: nCCl4 = 30.0 g ×1 mol153.8g           =0.195 mol

Q: Given the following data for: Mass of test tube, beaker, cyclohexane =100.17 g Mass of test tube…

A: Solution- The mass of the test tube, beaker, and cyclohexane = 100.17 g The mass of the test tube…

Q: A solution is prepared by mixing 5.81 g acetone (C3H6O, molar mass 1 g/mol) and 11.9 g chloroform…

A:

Q: At a certain temperature the vapor pressure of pure acetyl bromide (CH,COB1) is measured to be 363.…

A: we need to calculate partial pressure of acetyl bromide

Q: What is the vapor pressure of a 45.0% (by mass) solution of glucose, C6H12O6, at 90.0°C, given that…

A: vapour pressure of a liquid /solution is the pressure exerted by the vapours in equilibrium with the…

Q: Pentane (C5 H12) and hexane (C6H14) form an ideal solution. At 25°C the vapor pressures of pentane…

A:

Q: The vapor pressure of methanol is 94 torr at 20degrees Celsius. The vapor pressure of ethanol is…

A: (a)Given,50.0 g of methanol is mixed with 50.0g of ethanol.Mass of methanol = 50.0gMolar mass of…

Q: C2H;OH, is 44 torr 65. The vapor pressure of methanol, CH3OH, is 94 torr at 20 °C. The vapor…

A: Given,Vapor pressure of methanol is 94 torr.Vapor pressure of ethanol is 44 torr.

Q: (c) Pentane, C,H12, and hexane, C,H14, combine to form an ideal solution. At 25°C the vapor…

A:

Q: The molal freezing point depression constant =Kf·7.96°C·kgmol−1 for a certain substance X. When…

A: Answer: We will calculate the depression in freezing point using following formula:…

Q: Calculate the molality of a solution containing 5 g of the nonelectrolyte glucose (C6H12O6) in 0.400…

A: Molality is the ratio of moles of solute to mass of solvent in kiligram.

Q: An engine coolant is an aqueous solution of ethylene glycol, HOCH¿CH¿OH, 40.0 % by mass with a…

A:

Q: 21. 250. 0 ml of 1.00 M NAOH solution has a density of 1.90 g/mL. Calculate the concentration of…

A: According to our policy we should solve one question(If any subparts present than first three…

Q: At 25.0 °C, the vapor pressure of pure carbon tetrachloride (CCl4) is 143. torr and the vapor…

A: a) Yes, the vapor pressure of a pure solvent will differ from the vapor pressure of the solution of…

Q: Pentane (C5H12) and hexane (C6H14) form an ideal solution. At 25°C the vapor pressures of pentane…

A:

Q: The solution contained 2.743 mg of protein in sufficient H2O to form 17.66 of solution The measured…

A: A numerical problem based on colligative property, which is to be accomplished.

Q: You have a 10.40-g mixture of table sugar (C 12H 22O 11) and table salt (NaCl). When this mixture is…

A: Given mass of mixture = 10.40 g Mass of water = 150 g Freezing point = -2.24°C some standard values…

Q: The vapor pressure of a solution containing 47.2 g glycerin (C3H8O3) in 173.8 g ethanol (C2H5OH) is…

A: Since the glycerin is non volatile non electrolyte solute. Hence the vapour pressure of solution is…

Q: For each case,compute the vapor pressure of the solution at 25°C. The vapor pressure of pure water…

A: The relationship between the vapor pressure of the solution (P) and the vapor pressure of the pure…

Q: A 0.9720 M aqueous solution of NaCl has a density of 1.03625 g/cm3 at 25 °C, Calculate the molality…

A:

Q: A solution contains 22.5 g of methanol , CH3OH , dissolved in sufficient water to give a total mass…

A: Molality: The mole of the solute dissolved in one kilogram of the solution is known as the molality…

Q: Assuming ideal solution behavior, what is the boiling point of a solution of 150.0 g of nonvolatile…

A: The boiling point of water is 100 degree centigrade and the freezing point of the water is 0 degree…

Q: Use the MEASURED Van't Hoff factors in the table below to calculate each colligative property: a.…

A:

Q: Pentane (C5H12) and hexane (C6H14) form an ideal solution. At 25°C the vapor pressures of pentane…

A:

Q: The density of an aqueous solution containing 15.0 percent ethanol (C2H5OH) by mass is 0.974 g/mL.…

A:

Q: A solution contains 10.0 g pentane, C5H12, 10.0 g hexane, C,H14 and 10.0 g benzene, C6H6. What is…

A:

Q: At a certain temperature the vapor pressure of pure methanol (CH,OH) is measured to be 0.42 atm.…

A:

Q: At 300°K, the vapor pressure of pure benzene (C6H6) is 0.1355 atm and the vapor pressure of pure…

A:

Q: The vapor pressure of pure water at 25 °C is 23.76 mm Hg. Calculate the vapor pressure of a solution…

A: We will first calculate number of moles of sucrose and water. Then calculate vapor pressure of…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.