The vapor pressure of a substance at 20.0 °C is 58.0 kPa and its enthalpy of vaporization is 32.7 kJ mol-1 . Estimate the temperature at which its vapor pressure is 66.0 kPa.

Q: The standard enthalpy of vaporization (H°vap) of ethylenediamine ((NH2CH2)2) is 44.0 kJ/mol. The…

A:

Q: When 14.3 g of a certain molecular compound X are dissolved in  85.0 g of benzene C6H6, the…

A: The depression in the freezing point refers to a phenomenon which is used to describe the effect of…

Q: calculate the molar mass of the polymer. Take the density of the solution to be 0.886 g cm

A: Organic solvent  tetrahydrofuran (C4H8O) The osmotic pressure () can be calculated from the…

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: A certain liquid X has a normal boiling point of 114.40 °C and a boiling point elevation constant K…

A: The boiling point of the pure liquid = 114.40 0C. The boiling point of the solution = 115.1 0C.…

Q: Calculate the mass of ethyleneglycol 1C2H6O22 that must be added to 1.00 kg of ethanol1C2H5OH2 to…

A:

Q: The vapour pressure of a liquid at 35°C is 0.60 bar and its enthalpy of vaporization is 40 kJ/mol.…

A: According to Clausius Clapeyron equation, log P2/P1 = ∆H(1/T1 - 1/T2) /2.303R Where P = pressure…

Q: The vapor pressures of tetrachloromethane (A) and trichloroethylene (B) between 76.8 °C and 87.2 °C…

A:

Q: The standard enthalpy of vaporization (H°vap) of ethylenediamine ((NH2CH2)2) is 44.0 kJ/mol. The…

A: Given: Heat of vaporization of ethylenediamine = 44.0 KJ/mol = 44000 J/mol…

Q: The standard enthalpy of vaporization (H°vap) of ethylene glycol ((CH2OH)2) is 58.7 kJ/mol.The…

A: Clausius-Clapeyron equation shows how pressure and temperature vary with respect to each other that…

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

A:

Q: 3. (a) The Lattice enthalpy for the solid ionic compound AgBr is +900. kJ/mole.     Write the…

A:

Q: Calculate the mass of ethylene glycol C2H6O2 that must be added to 1.00 kg of ethanol C2H5OH to…

A: When we add non volatile solute in a pure solvent than the vapour pressure of pure solvent decreases…

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

A: Raoult's Law states that vapor pressure of a solution formed by volatile solute and volatile solvent…

Q: The vapor pressure of water at 30 °C is 4.24 kPa. Calculate the vapor pressure if 95.0 g of…

A:

Q: Find the vapor pressure at 25ºC of a water solution obtained by dissolving 2.397 moles of MgCl2(s)…

A: A solvent's vapor pressure in  solution is often less than pure solvent's vapor pressure. The…

Q: s) At 20 °C the vapor pressure of benzene is 10 kPa and that of methylbenzene is 2.8 · kPa. If this…

A:

Q: Compound XY is an ionic compound that dissociates as it dissolves in water. The lattice energy of XY…

A: Given:             Lattice energy = -595.6 KJmol-1             Hydration energy of ions = -612.4…

Q: Camphor (C10H16O) melts at 179.8 °C, and it has aparticularly large freezing-point-depression…

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

Q: For liquid zinc, the measured vapour pressures at 627 °C and 977 °C are given as 9.5 x 10-3 atm and…

A: The Calcius Clapeyron equation to relate vapor pressure and temperature is given by   ln(P2P1) =…

Q: 3. (a) The Lattice enthalpy for the solid ionic compound AgBr is +900. kJ/mole. Write the chemical…

A: Enthalpy of lattice refers to the quantity of energy needed to convert 1 mole of ionic solid to…

Q: The vapor pressure of water at 30 °C is 4.24 kPa. Calculate the vapor pressure if 95.0 g of xylose,…

A: The question is based on the concept of colligative properties. We need to calculate vapour pressure…

Q: In his experiment, Jireh wanted to determine the molar mass of his unknown sample. Based on his…

A:

Q: Determine the change in boiling point for 301.4 g of carbon disulfide (mm=76.15,Kb=2.34 C degrees)…

A: First, calculate the moles of compound as follows: Moles of the compound dissolved = Mass/Molar mass…

Q: The vapor pressure of propanone is 15.40 kPa at 10C and 81.65 at 50C. Calculate the temperature at…

A:

Q: What is the vapor pressure of benzene when .75 mol of naphthalene is mixed with 1.00 kg of benzene?…

A: MC6H6= 78 g/mol nnapththalene  = 0.75 mol. W C6H6 = 1 Kg = 1000 g nC6H6 = W C6H6/MC6H6= 1000g/(78…

Q: The molal boiling point elevation constant =Kb·0.53°C·kgmol−1 for a certain substance X. When 7.3g…

A: We will calculate boiling point of pure solvent.

Q: The normal boiling point of cyclohexane is 81 °C. What's the vapor pressure of cyclohexane at 81 °C?

A: Normal boiling point: The temperature required by the liquid at which the vapor pressure of that…

Q: When 0.6403 of g calcium bromide is dissolved in 75.00 mL water, the solution temperature increses…

A: The dissolution reaction for the calcium bromide can be written as, => CaBr2 (aq) -----> Ca2+…

Q: What is the mole fraction of solvent in a solution of aqueous sucrose (a nonelectrolyte) that has a…

A:

Q: What is the mole fraction of solvent in a solution of aqueous sucrose (a nonelectrolyte) that has a…

A: According to Raoult's law: PA = XA PA0 where, PA = Vapour pressure of solution; XA = mole fraction…

Q: The normal boiling point of benzene is 80.10 °C. At 25.00 °C, the vapour pressure of benzene is…

A:

Q: A certain liquid X has a normal freezing point of 7.00°C and a freezing point depression constant…

A: For an ideal solution containing a strong electrolyte, Raoult's law states that: ∆Tf=i.Kf.C Where:…

Q: Osmotic pressures are often reported in units of atmospheres or mm Hg. The latter implies that the…

A: One torr is approximately equal to the pressure required to raise the column of mercury by 1 mm.…

Q: Calculate the vapor pressure of ethanol, CH₃CH₂OH, in a water solution containing 72.5% ethanol by…

A: The objective of this question is to calculate the vapor pressure of ethanol in a water solution at…

Q: The normal boiling point of cyclohexane is 80.74 °C. At 20.00 °C, the vapour pressure of cyclohexane…

A: Given,  The normal boiling point of cyclohexane is 80.74 °C.At 20.00 °C, the vapour pressure of…

Q: The freezing point of CCl4 was lowered by 0.52 K when 50 grams of a chemical were added to the…

A: Before the question solution we overlook on the basic concept of freezing point and Depression in…