The vapor pressure of methanol, CH3OH, is 94 torr at 20 °C. The vapor pressure of ethanol, C2H5OH, is 44 torr at the same temperature.(a) Calculate the mole fraction of methanol and of ethanol in a solution of 50.0 g of methanol and 50.0 g of ethanol.(b) Ethanol and methanol form a solution that behaves like an ideal solution. Calculate the vapor pressure of methanol and of ethanol above the solution at 20 °C.(c) Calculate the mole fraction of methanol and of ethanol in the vapor above the solution.

Q: Certain salty water containing sodium chloride is found to boil at 103.7°C. If there is 700 g of…

A: Given that:  Boiling point of solution = 103.7°C Mass of water = 700g Kb = 0.52°C/m Molar mass of…

Q: calculate the freezing point of a solution containing 0.600 kg of CHCl3 and 42.0 g of eucalyptol…

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Q: The normal freezing point of ethanol (CH3CH2OH) is -117.300 ºC.  In a laboratory experiment,…

A: The freeing point depression is observed on the addition of solute in a solvent, which is a…

Q: A saturated solution of Na2S2O3 at 80 degree celsius was determined to be 47.6% by mass. What is…

A:

Q: The vapor pressure of carbon tetrachloride, CCI4, is 0.354 atm, and the vapor pressure of…

A: Interpretation - The mole fraction of the chloroform in the vapor above the solution and vapor…

Q: Calculate the freezing point of a .2m CaCl2 aqueous solution, assuming it dissociates completely to…

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: Camphor 1C10H16O2 melts at 179.8 °C, and it has a particularly large freezing-point-depression…

A: Colligative properties are the properties of the solution that depend on the number of moles of…

Q: The freezing point of ethanol, CH3CH,OH, is -117.300 °C at 1 atmosphere. Kgethanol) = 1.99 °C/m In a…

A: Given: The freezing point of pure ethanol is -117.300°C. The freezing point depression constant of…

Q: 5 °C, the vapor pressure of pure benzene is 100.84 Torr. What is the vapor pressure of a solution…

A:

Q: What is the osmotic pressure at 25°C when 74.5 mL of a solution containing 5.25 grams of electrolyte…

A:

Q: when 5.0g of an unknown substance is dissolved in 100.0g of water, the freezing point of the…

A:

Q: A 300 mg sample of caffeine was dissolved in 10.0 g of camphor (Kf = 39.7°C/m), decreasing the…

A: The depression in the freezing point (∆Tf) can be expressed as follows-

Q: Calculate the following:  The vapor pressure of benezene, C6H6 at 25C in an ideal solution…

A: In accordance to Raoult’s law, solutions in an ideal mixture exert their individual pressures.  This…

Q: If the boiling-point elevation of an aqueous solution containing a nonvolatile electrolyte is…

A: Boiling point elevation can be defined as a phenomenon in which the boiling point of liquid will be…

Q: Calculate the molal concentration, m of a solution that contains 12g of Magnesium hydroxide, mg…

A: Answer: Among different ways of representing the concentration of a solution, molality is one…

Q: When 6.31 g of a certain nonvolatile solute is dissolved in 505 g of water, the freezing point of…

A: Given data is as follows: The mass of nonvolatile solute = 6.31 g The mass of water = 505 g = 0.505…

Q: What is the effect on vapor pressure of a solution with particularly strong solute–solvent…

A: Vapor pressure is the pressure of vapors that are in contact with its liquid form. In case of…

Q: Calculate the molality of the solution formed when 1.5g of urea (molar mass = 60g / mol) is…

A: Given, 1.5g of urea (molar mass = 60g / mol) is dissolved in 200g of benzene

Q: What is the molality of a 24.4% (by mass) aqueous solution of phosphoric acid?

A: Given, % by mass of aqueous solution of phosphoric acid (H3PO4) = 24.4 %   This means that 100 g of…

Q: What is the molality of HCI in a aqueous solution in which the mole fraction of HCI is 0.220?

A: Given - - > Mole Fraction of HCl = 0.220 Molality of HCl = ?

Q: What is the effect on the vapor pressure of a solution with particularly strong solute-solvent…

A:

Q: A solution which is composed of heptane (C-H16, 100.198 g mol"") and octane (CH43, 114.224 g mol-)…

A: Given, The vapor pressure of the mixture of heptane and octane is------ 78 torr at 40oC. A saturated…

Q: What will be the osmotic pressure exerted by an aqueous solution of 500ml volume at 25 degree…

A: Since it is not given whether 2.33 is concentration or mass or moles. Hence I'm assuming it to be…

Q: At 20.0 °C, the vapor pressure of cyclohexane, a nonpolar hydrocarbon, is 66.9 torr and that of…

A: Given: Vapor pressure of cyclohexane = 66.9 torr Vapor pressure of toluene = 21.1 torr Mole fraction…

Q: The mole fraction of copper (II) nitrate in an aqueous copper (II) nitrate solution solution is…

A: The aqueous copper (II) nitrate solution has water and copper (II) nitrate with it. The number of…

Q: At 20.0 °C, the vapor pressure of cyclohexane, a nonpolar hydrocarbon, is 66.9 torr and that of…

A: Given  P⁰1 = 66.9 torr P⁰2= 21.1 torr

Q: A 5.2 molal aqueous solution of methyl alcohol, CH3OH is supplied. What is the mole fraction of…

A: The mole fraction is defined as the number of moles of a particular component is divided by total…

Q: Estimate the freezing point of an antifreeze mixture made up by combining one volume of ethylene…

A: One volume of the ethylene glycol  V1 = 1 L = 10-3 m3  Two volume of the water  V2 = 2 L = 2 x 10-3…

Q: In a 55.0g aqueous solution of methanol, CH4O, the mole fraction of methanol is 0.110. What is the…

A: Mole fraction is the ratio of the number of moles of one component to the sum of the moles of total…

Q: Calculate the mass of compound (molar mass = 256 g mol-1) to be dissolved in 75 g of benzene to…

A: A colligative property is a property that depends on the number of moles of solute, not on the…

Q: A nonvolatile solute is dissolved in benzene and the resulting solution has a vapor pressure of 18.1…

A: Given           The vapor pressure of the resulting solution = 18.1 torr.           The vapor…

Q: A solution of hydrochloric acid in water is 38.00% hydrochloric acid by mass. Its density is 1.1886…

A: Given information: Mass percent of hydrochloric acid = 38.00 % Density = 1.1886 g cm-3

Q: if

A:

Q: 0.02 molal solution of potassium iodide freezes at -0.25OC. What is the percentage dissociation?

A:

Q: What will be the normality of a solution obtained by mixing 0.45 N and 0.60 N NaOH in the ratio 2: 1…

A: Given information: Normality (N1) = 0.45 N Normality (N2) = 0.60 N V1 = 2 V2 = 1

Q: Explain the existence of colligative properties using the concept of chemical potentials.

A: Colligative properties

Q: he freezing point of benzene, C6H6, is 5.500 °C at 1 atmosphere. Kbenzene) = -5.12 °C/m a laboratory…

A: The question is based on the concept of solutions.   Molality is a method of expressing…

Q: At 25°C a solution containing 5.25g of a substance in 150.0cm³ of solution exerts an osmotic…

A: 1st question:  Data given: Mass of the substance, m = 5.25 g Temperature of the substance, m = 25 °C…

Q: The freezing point of an aqueous solution of barium nitrate is -2.65°C. Determine the apparent molal…

A: Given: Freezing point of solution = -2.65°C Freezing point of water = 0°C Molal freezing point…

Q: The solubility of carbon dioxide in water at 25°C and 1 atm is 0.034 mol/L. What is its solubility…

A: We have to predict the solubility of the gas.

Q: What is the molality of HCl in an aqueous solution in which the mole fraction of HCl is 0.220

A: Sum of Mole fraction of all components in solution = 1 In the solution, only 2 compounds are present…

Q: Two volatile substances, A and B are dissolved in one another and the resulting solution has a vapor…

A: Solution

Q: The osmotic pressure, in atmospheres, of a solution formed by dissolving 45.0 mg of KCI in enough…

A:

Q: The vapor pressures of pure benzene and toluene at 25 ° C are 95.1 and 28.4 mmhg,respectively. A…

A:

Q: The mole fraction of iodine, I2, dissolved in dichloromethane, CH2Cl2, is 0.115. What is the molal…

A: The amount of the substance dissolved in the given volume of the solvent to furnish the solution can…

Q: The enthalpy of hydration of Li+1 is -520 kj/mol. Calculate the enthalpy of solution of LiF(s)

A: Given: Enthalpy of hydration of Li+1 = -520 kj/mol Lattice energy of LiF(s) = 1030 kJ/mol

Q: An ideal solution is composed of methanol (CH3OH) and propanol (C3H7OH), and it has avapor pressure…

A: As per Dalton's law of partial pressure, the pressure exerted by a gas in the mixture of at least…

Q: A bottle of phosphoric acid is labeled “85.0% H;PO, by mass; density = 1. 689 g/cm2." Calculate the…

A:

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.