A 1.10 g sample of an unknown compound reduces the freezing point of 75.22 g benzene from 5.53 to 4.92 ºC.  What is the molar mass of the compound?

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Q: At 25°C, the vapor pressure of pure benzene is  P1== 0.1252 atm. Suppose 6.40 g of naphthalene,…

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Q: Calculate the freezing point of a solution of 40.0 g methyl salicylate, C7H6O2, dissolved in 800. g…

A: Mass of methyl salicylate (solute) = 40 g Mass of benzene (solvent) = 800 g Kf = 5.10 ℃/m T°f = 5.50…

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Q: A solution was prepared by dissolving solute T in 120 g benzene. The freezing point of this solution…

A: Given : Mass of solvent i.e benzene = 120 g = 0.120 Kg                                     (since 1…

Q: 1. A solution contains 15.37 grams of NaCl in 0.621 kg water at 25 °C. What is the vapor pressure of…

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Q: A certain liquid X has a normal freezing point of -4.00 °C and a freezing point depression constant…

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Q: 1. A student determines the molar mass of methanol, CH3OH by the same method used in this…

A: Answer: This question is based on the colligative property of the solution. Colligative property of…

Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Assuming mass of naphthalene in the mixture is y. Hence mass of pyrene = mass of mixture - mass of…

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Q: A nonvolatile solute is dissolved in benzene and the resulting solution has a vapor pressure of 20.1…

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Q: A nonvolatile solute is dissolved in benzene and the resulting solution has a vapor pressure of 20.7…

A: Given information,           The vapor pressure of the resulting solution is 20.7 torr.…

Q: When a 28.4 g sample of an unknown compound is dissolved in 500.0 g of benzene ( C6H6 ) , the…

A: Mass of sample = 28.4 g. Mass of benzene ( C6H6 ) = 500.0 g freezing point of solution = 3.77 °C…

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Q: A nonvolatile solute is dissolved in benzene and the resulting solution has a vapor pressure of 18.5…

A: Given -    vapor pressure of =18.5 torr    P° of benzene is = 26.5 torr    P = Npo  ( Raoult's…

Q: Calculate the freezing point of a solution of 35.0 g methyl salicylate, C 7H 6O 2, dissolved in 800.…

A: Calculate the number of moles of methyl salicylate (C8H8O3): Calculate the molality of 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 nonvolatile solute is dissolved in benzene and the resulting solution has a vapor pressure of 18.7…

A: In the given question ->Vapor pressure of solution = 18.7 torr = PVapor pressure of pure solvent…

Q: The freezing point of ethanol, CH3CH₂OH, is -117.300 °C at 1 atmosphere. K(ethanol) = 1.99 °C/m In a…

A: Given:Mass of solute = 10.78 gMass of solvent ethanol = 294.9 gThe solution began to freeze at…

Q: A 3.40-g sample of a mixture of naphthalene (C10H8) and pyrene (C16H10) is dissolved in 35.0 g…

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Q: The freezing point of benzene CGH6 is 5.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that…

A: Freezing point depression is a colligative property observed in solutions that results from the…

Q: Above solution: 0.140 g of an unknown solute is dissolved in 7.88 g of cyclohexane (C6H12). The…

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Q: Assume that each of the ions in calcium chloride, CaCl2, has the same effect on the freezing point…

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Q: A 1.10 g sample of an unknown compound reduces the freezing point of 75.22 g benzene from 5.53 to…

A: Given: Mass of substance (solute) = 1.10 g mass of benzene (here solvent) = 75.22 g Initial…

Q: A 7.85 g sample of a compound with empirical formula C5H4 is dissolved in 301 g of benzene. The…

A: Kf = freezing point constant = 5.12 C kg m .m = mass in g or molality ∆Tp  = changes in freezing…

Q: A solution of 0.890 g of an organic compound in 100.0 g of benzene has a freezing point of 5.107°C.…

A: Freezing point of pure solvent = 5.500°C  Freezing point of solution = 5.107°C  ∆ Tf = Freezing…

Q: A nonvolatile solute is dissolved in benzene and the resulting solution has a vapor pressure of 20.5…

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