Octane and nonane are liquids which are components of gasoline. Their vapor pressures at 25°C are 13.9 torr and 4.7 torr, respectively. What is the vapor pressure of a mixture consisting of 2.0 mole of octane and 3.0 moles of nonane?

Q: A solution of ethylene glycol and water has a vapor pressure of 7.88 torr at 10°C. Pure water has a…

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Q: The vapor pressure of 0.388 g of a pure substance is 0.631 atm at 20degree celcius (the molar mass…

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Q: An aqueous solution is 26.9 % lithium chloride, LiCl, by mass. The density of the solution is 1.127…

A: Assuming we have 100 g of solution Since % by mass is defined as  % by mass = mass of solute X 100 /…

Q: How many grams of ethylene glycol (molar mass = 62.07 g/mol) must be added to 1500.0 g of water to…

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Q: Acetone (molar mass = 58.0 g mol-1) has a vapor pressure at a given temperature of 161 torr. At the…

A: Given, Acetone (molar mass = 58.0 g mol-1) has a vapor pressure at a given temperature of 161 torr.…

Q: The osmotic pressure of a solution containing 33.8 mg of an unknown protein dissolved in 7.01 mL of…

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Q: The vapor pressure of benzene, C6H6, is 73.03 mmHg at 25.0 °C. How many grams of testosterone…

A: In this question, we want to calculate the mass of the testosterone in grams. How we can calculate,…

Q: Why is the composition of the vapor different from the composition of the solution?

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Q: The freezing points and boiling points of the solution which contains 22.1g NaCl in 129 mL of water…

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

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

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Q: The vapor pressure of benzene, C6H6, is 94.6 Torr at 25 °C. A nonvolatile compound was added to…

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Q: What is the boiling point of an aqueous solution of ethylene glycol which is 1.70 molal? A. 0.880oC…

A: Given, Molality of the solution = 1.70 m Boiling point of an aqueous solution of ethylene glycol…

Q: The solubility of CoCl2.6H2O in methanol (CH3OH) is 38.5 g per 100 g of methanol (CH3OH) at 20oC.…

A: Assuming we have 100 g of methanol  Since the solubility of CoCl2.6H2O in methanol is 38.5 g in 100…

Q: A solution containing 27.55 mg of an unknown protein per 25.0 mL solution was found to have an…

A: ANSWERE IS DISCUSSED BELOW :

Q: Acetone (molar mass - 58.0 g mol-4) has a vapor pressure at a given temperature of 174 torr. At the…

A: Molar mass of acetone = 58.0g/mol Vapour pressure of pure acetone = 174torr Molar mass of stearic…

Q: The vapor pressure of ethanol is 58.7 torr at 25 °C. Determine the vapor-pressure lowering, ΔP, of…

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Q: The ethanol used for medical purposes is called “USP ethanol.” It is an aqueous solution that is 95%…

A: Given:- 95% ethanol density of pure ethanol = 0.789 g mL-1 density of USP ethanol = 0.813 g mL-1.…

Q: How many liters of the antifreeze ethylene glycol [CH2(OH)CH2(OH)] would you add to a car radiator…

A: See the given answer

Q: A 276 mL aqueous solution containing 0.400 g of an unknown polymer has an osmotic pressure of 26.9…

A: The osmotic pressure is given by  Osmotic pressure = i X CRT where i = Van't Hoff factor = number of…

Q: A solution of aqueous substance(molar mass 90.8g/mol) has a molarity of 2.1M and density of…

A: Given   The molarity is 2.1 M. The molar mass of substance is 90.8 g/mol The density is 1.08 g/mL

Q: What is the molality of an alloy containing .03 g of silver and 4.75 g of iron?

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Q: Table sugar granules were dissolved in a glass of water. The solid sugar granules have no measurable…

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Q: At 60oC, the vapor pressure of ethanol is 352.7 mm Hg and that of methanol is 625.0 mm Hg. These two…

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Q: Two volatile substances are mixed with one another so that substance A has a mole fraction of 0.53.…

A: Let's assume the mixture of two volatile substances and their vapor behaves ideally. Applying both…

Q: 1. Find the vapor pressure of a solution containing 35.0g calcium chloride (CaCl2) in 750.0g water.…

A: Vapour pressure of solutions is equal to pressure of pure components multiplied by mole fraction

Q: The vapor pressure of carbon tetrachloride, CCl4, is 0.354 atm, and the vapor pressure of…

A: Since, both carbon tetrachloride and chloroform have same mass then, Moles of carbon tetrachloride =…

Q: he common laboratory solvent chloroform is often used to purify substances dissolved in it. The…

A: Relative lowering in the vapor pressure of a solution is a colligative property that depends on the…

Q: The vapor pressure of pure Freon 11 and pure Freon 12 at 25ᵒ C are 15 lb/in2 and 84 lb/in2…

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Q: At 35 °C the vapor pressure of acetone, (CH3)2CO, is 360torr, and that of chloroform, CHCl3, is 300…

A: (a)

Q: Antifreeze solutions are aqueous solutions of ethylene glycol,  C2H6O2  (  d = 1.12 g/ml) .  In…

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Q: The osmotic pressure of a 3.30 mL solution containing 0.181 g of protein dissolved in water is…

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Q: Acetone (molar mass = 58.0 g mol) has a vapor pressure at a given temperature of 166 torr. At the…

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Q: Benzene (C6H6) and carbon tetra chloride (CCl4) are both volatile liquids. What is the ideal vapor…

A: The ideal vapour pressure of a solution which contains4.401 moles of C6H6 and 1.623 moles of CCl4…

Q: Match the following aqueous solutions with the appropriate letter from the column on the right. 1.…

A: Boiling point is defined as the temperature at which the vapor pressure of the liquid state will…

Q: A 251 mL aqueous solution containing 0.400 g of an unknown polymer has an osmotic pressure of 26.9…

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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: How many grams of electrolyte KF (molar mass = 58.10 g/mole) must be added to 64.10 g of ethanol (Kf…

A: Consider the given information is as follows; Molar mass of KF = 58.10 g/molMass of KF (solute)=…

Q: The common laboratory solvent chloroform is often used to purify substances dissolved in it. The…

A: From given We know,the formula for  nonvolalatile and nonelectrolyte solute solution Psolution =…

Q: The common laboratory solvent chloroform is often used to purify substances dissolved in it. The…

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Q: At a certain temperature, diethyl ether has a vapor pressure of 400.0 torr. When a sample of benzoic…

A: vapour pressure of diethyl ether = 400 torr = Posolvent vapour pressure of the solution = 342 torr =…

Q: Concentrated aqueous ammonia has a molarity of 14.8 and a density of 0.87 g/cm3. What is the…

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Q: Equal masses of benzene (C6H6) and toluene (C7H8) are mixed together at 20 oC. If the vapor…

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Q: The vapor pressure of pure Freon 11 and pure Freon 12 at 25ᵒ C are 15 lb/in2 and 84 lb/in2…

A: let, mol of freon-11 as 0.6 mol then mol of freon-12 will be 1 mol so that ratio  could be 0.6. mole…

Q: Aniline (C6H7N) is an organic solvent with a freezing point of -6.0 °C. What is the freezing point,…

A: According to Raoult's law, the depression in the freezing point of an ideal solution of a…

Q: The normal boiling point of ethanol, CH3CH2OH, is78.4 °C. When 9.15 g of a soluble nonelectrolyte is…

A: At boiling point, the vapor pressure of liquid becomes equal the atmospheric pressure.

Q: 1. Calculate the vapor pressure of a mixture containing 35.6 g of glucose and 5 mL of ethanol at…

A: Given :-  Mass of glucose, C6H12O6 = 35.6 g  Volume of ethanol, C2H6O = 5 mL  Temperature = T = 25…

Q: At 20 °C, the vapor pressure of benzene (C6H6) is 75 torr,and that of toluene (C7H8) is 22 torr.…

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