How many grams of urea [(NH2)2CO)] must be added to 465 g of water to give a solution with a vapor pressure 0.865 mmHg lower than that of pure water at 30°C? (The vapor pressure of water at 30°C is 31.8 mmHg.)

Q: Consider two solutions, one formed by adding 300 gg of glucose (C6H12O6)(C6H12O6) to 1 LL of water…

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Q: What is the vapor pressure of a pure sample of water at 37∘C, if a 0.50Msolution of BaCl2 ​has a…

A: BaCl2 is a non-volatile solute. Its presence in the solution causes the lowering of vapor pressure…

Q: hen 59.9 g of glycine (C₂H5NO₂) are dissolved in 850. g of a certain mystery liquid X, the freezing…

A: Freezing-point depression is the decrease of the freezing point of a solvent on addition of a…

Q: The molecular mass of hemoglobin is 6.86 x 104 g/mol.  What mass of hemoglobin must be present per…

A: Given :-  Molar mass of haemoglobin = 6.86 x 104 g/mol  Volume of solution = 100.0 mL  Osmotic…

Q: The vapor pressure of a pure water at 26.0°C is 25.21 torr. The vapor pressure of a solution which…

A: According to the Raoult's law for dilute solutions the relative lowering of vapor pressure is equal…

Q: Vapor Pressure Lowering The vapor pressure of a pure solvent is REDUCED when a nonvolatile solute is…

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Q: 5) Antifreeze is composed mainly of ethylene glycol (C2H6O2, d = 1.11 g/cm3). It is added to a car…

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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: What is the vapor pressure (mm Hg) of water at 25 Celsius above a solution prepared by dissolving…

A: For ideal solutions, each component's pressure is identical to the pure state pressure and mole…

Q: What is the freezing point, in °C, of a solution made with 1.31 mol of CHCl3 in 530.0 g of CCl4 (Kf…

A: Step 1:Step 2:

Q: 5. Calculate the vapor pressure of a solution made by dissolving 82.4 g of urea (molar mass = 60.06…

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Q: The freezing point of pure water is 0.0°C. How many grams of ethylene glycol (C2H6O2) must be mixed…

A: Mass of solvent water = 100.0 g = 0.1 kg Kf for water = 1.86 °C/m = 1.86 °C. kg/mol) Depression in…

Q: Ethylene glycol (C2H6O2) is used as an additive to the water in your automobile to lower it’s…

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Q: Calculate the vapor pressure of water above a solution prepared by dissolving 29.5 g of glycerin…

A: The mole fraction of water in the solution, xw, is calculated as,

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

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Q: At 20°C, the vapor pressure of pure ethanol, C2H5OH, is 43.7 mmHg and the vapor pressure of pure…

A: Given that , Vapour pressure of the solution= 28.6 mmHg Vapour pressure of pure ethanol = 43.7 mmHg…

Q: Both benzene (C6H6) and carbon tetrachloride (CCl4) are volatile organic liquids. When 1.68 mole of…

A: Given information is as follows: The moles of solute C6H6 = 1.68 mol The moles of solvent CCl4 =…

Q: What is the boiling point (in °C) of a solution of 0.150 g of glycerol, C3H8O3, in 20.0 g of water?…

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Q: When 48.7g of benzamide C7H7NO are dissolved in 1300.g of a certain mystery liquid X, the freezing…

A: Benzamide dissolve in liquid X mass  of solute = 48.7 g mass of solvent = 1300 g ? Tf = 2.3 oC…

Q: mol/(L'atm) when dissolved in benzene at 25°C. How many grams of CH4 will dissolve in 1.00 L of…

A: Introduction :  We have to calculate the mass of methane .

Q: The boiling point of a solution made up of ethylene glycol (C2H6O2) and 50 g of water is 100.85°C.…

A: To Solve this problem first we have to calculate the molality of the Solution then we will calculate…

Q: Calculate the vapor pressure of a solution containing 28.5 g of glycerin (C3H8O3) in 125 mL of water…

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Q: What is the vapor pressure of a 45.0 % solution of glucose, C6H12O6 (252.12 g/mol), at 90.0°C, given…

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Q: A sample of 4.4 g of toluene, C7H8, is dissolved in 60.00 g of camphor. What is the freezing point…

A: Information about the question

Q: What is the freezing point of a solution containing 3.10 grams of benzene (molar mass = 78.0 g/mol)…

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Q: (a) A 2.300 molal solution of KCl is prepared. How many grams of KCl are present in a sample…

A: a. Given:Molality of the solution(m) = 2.300 m = 2.300 mol/kg                               (4…

Q: The freezing point of water H₂O is 0.00 °C at 1 atmosphere. A nonvolatile, nonelectrolyte that…

A: Answer:When a non-volatile is dissolved in solvent it affects its physical and chemical properties…

Q: At 31°C, what is the osmotic pressure of a 0.2% NaCl by weight aqueous solution? Assume the density…

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Q: 25.00 g of acetone (C3H6O; molar mass 58.08 g/mol). The vapor pressure of the solution is determined…

A: P0-PsP0 = x1x1+x2P0 →vapour pressure of pure solventPs →vapour pressure of solutionx1 → No of moles…

Q: A 5.96 g sample of a compound that is not an electrolyte is dissolved in 212.0 g of benzene. The…

A: Freezing point depression = i × m × Kf

Q: A solution of carbon tetrachloride in benzene, C6H6, at 20°C has a total vapor pressure of 78.50…

A: Solution - According to the question - Given - For ideal solution, Raoult's law: PA= PAo*xA where…