Calculate the freezing point of an aqueous solution prepared from a non-volatile solute that has a vapor pressure of 34.6 torr at 32 oC. (PoH2O = 38.6 torr) (Kf (pure water) = 1.86 oC / m)

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: 20) At 23.0°C, the vapor pressure of acetonitrile, CH3CN, is 81.0 torr while that of acetone, C3H6O,…

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Q: The mole fraction of sodium chloride, NaCl, in a saturated aqueous solution is 0,220. (a)  What is…

A: As per our guidelines, we can solve only one question at a time. Please post other questions as next…

Q: When a 5.64 g sample of a non-electrolyte was dissolved in 40.0 g of water, the freezing  point of…

A: Molality of solution can be calculated as follows:

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

A: The Raoult's for non volatile solute can be expressed as,…

Q: Benzene (C6H6; molar mass = 78.11 g/mol) and toluene (C7H8; molar mass = 92.13 g/mol ) form an ideal…

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Q: Suppose that you add 25.6 g of an unknown molecular compound to 0.250 kg of benzene, which has a Kf…

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Q: How much table salt should be added to 300 g water to lower its freezing point to -2.00°C?

A: given data : Kf of water = 1.86 °C/m  Freezing point of water = 0°C  ∆Tf = 0-(-2.00) = 2.00°C  Mass…

Q: The density at 20 ∘C of a 1.645 MM solution of acetic acid in water is 1.0121 g/mL. The molar mass…

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

A: Molar Mass of napthalene (C10H8) = 128 g/mol Molar mass of pyrene (C16H10) = 202 g/mol Mass of…

Q: When 1.504 g of a solute is dissolved in 5.012 g of solvent (benzene), the solution freezes at -7.05…

A: Given: Mass of solute = 1.504 g Mass of solvent (Benzene) =5.012 g Freezing point of the solution…

Q: Antifreeze is composed mainly of ethylene glycol (C2H6O2, d = 1.11 g/cm3). It is added to a car…

A: The relationship between depression in freezing point (∆Tf) and molality of solition is  ∆f = kf ×…

Q: The freezing point of a 0.21m aqueous solution of H2SO4 is -0.796oC. i = 2.04 b. Is the solution…

A: Given, Molality (m) = 0.21 m □Tf = 0.796 °c Kf = 1.86 °c/m □Tf = i×Kf ×m i = 0.796/0.21×1.86 =2.01

Q: A mass of 1.3 g of an unknown solute is added to 10.7 benzene (Kf=5.12°C kg/mol). The freezing point…

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Q: Seawater is an aqueous solution of NaCl, with concentration of 3.5mass % and density of 1.0250 g/mL,…

A: Solution -

Q: 1-The freezing point for water is lowered to -0.390 deg C when 3.9 g of a nonvolatile molecular…

A: Since depression in freezing point or lowering in freezing point is given by  ΔTf = m X Kf where m =…

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: Calculate the molality of chloride ions in an aqueous solution of magnesium chloride in which the…

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Q: study is the effect on osmotic pressure. (A) When 0.517 g of the compound are dissolved in enough…

A: Mass of compound = 0.517 gVolume of solution= 50 mL Osmotic Pressure= 4.18 atm Temperature= 23 °C We…

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…

Q: A solution contains 14.6 g of the substance bolognium and 14.6 g of caterium. Assuming ideal…

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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: (6) Determine the vapor pressure of a solution at 25°C that contains 76.6 g of glucose (C6H1206) in…

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Q: What is the mole fraction of acetone, C3H6O, in the vapor phase from a solution consisting of a…

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

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

A: Introduction to Raoult's law Raoult's law is a physical chemistry relationship that has…

Q: A solution is composed of 1.40 mol cyclohexane (P∘cy=97.6 torrPcy∘=97.6 torr) and 2.50 molmol…

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Q: Benzene is a common industrial solvent (molar mass: 78.11 g/mol). Its normal freezing point is 5.50…

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Q: Cholesterol is an important compound in the body, but in excess has been implicated as a cause of…

A: Given data : Mass of cholestrol = 4.82 gms                         Mass of Benzene = 112 gms…

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 normal boiling point of ethanol, CH3CH2OH, is 78.4 ∘C. When 8.50 g of a soluble nonelectrolyte…

A: Given data:

Q: You have a solution which is 56.2% by mass isopropyl alcohol (molar mass = 60.11 g/ mol) in water.…

A: Molality of solution represents the moles of solute per kilograms of solvent. Molarity of solution…

Q: Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of…

A: Given : Freezing point of solution = -14.5 ⁰C  Volume of solvent = 275 ml  Kf = 1.86 ⁰C kg mol-1

Q: What is the freezing point of an aqueous FeCl₃ solution made to be 0.81 m FeCl₃? (Kf for water is…

A: Given : Molality of FeCl3 = 0.81 m And the solution is aqueous solution means solvent is water.