The freezing point of pure naphthalene is 78.2"C. The freezing which naphthalene is the solvent could be: a) 79.6°C b) 78.2°C c) 86.4°C O d) 54.3°C

Q: What is the boiling point of a 2.6 m sucrose solution in ethanol? K(ethanol) = 1.22 °C/m and the…

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Q: The freezing point of the following mixture is 1. and the boiling point for the following mixture is…

A: This question belongs to colligative property.

Q: mixture of water and acetone at 756mm boils at 70.0c. the vapor pressure of acetone is 1.54 atm at…

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Q: The freezing point of organic compound A is approximately 138°F below zero. The freezing point of…

A: The detailed answer is attached below.

Q: If 11.2 g of sugar (MM= 342 g/mol) is dissolved in 500 g water at 30 degrees celsius, a. how many…

A: Given information,   11.2 g of sugar (MM= 342 g/mol) is dissolved in 500 g water at 30 degrees…

Q: Compute the boiling point elevation of a salt water solution that contains 2.35 g of NaCl dissolved…

A: Elevation in boiling point of a solution containing non-volatile solute is:

Q: Ethylene glycol, the major ingredient in antifreeze, freezesat -11.5 °C. What is the freezing point…

A: Ethylene glycol is major ingredient in the antifreeze  and Freezes at -115.50 C.  So its freezing…

Q: Cyclohexanol 10 ml Mass of cyclohexanol 9.62 g – 0.053 mol Theroretical yield  cyclohexene–7.89g -…

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Q: If ocean water is consist of 3.5% (m/m) salt, i.e. assuming NaCl (MM = 58.44 g), what would be the…

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Q: NaCI (MM = 58.44 g/mol) having a mass of 43.2 g was dissolved in 153 g of chloroform. What is the…

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Q: 1- A solution is prepared from 3 gm of NaOH and 75 gm of water. Kf -1.86 C/m, K, = 0.521 C/m and…

A: Answer..

Q: Ethanol (Kb = 0.374 °C/m) typically has a boiling point of 78.3°C. What will be the new boiling…

A: The elevation is boiling point is given by  ΔTb = Kb X m X i where m = molality of solution = moles…

Q: 5. Which ionic solid is most soluble in water at 0°C? A. sugar (C12H22011) B. KNO: C. NANO3 D. NaBr…

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Q: What is the boiling point of a 2.6 m sucrose solution in ethanol? Kb(ethanol) = 1.22 °C/m and the…

A: colligative property are those property which depend on the number of particle of the solute

Q: hat is the vapor pressure of ethyl alcohol at 45 C? 100

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Q: A solution is made by mixing 46.0 mL46.0 mL of ethanol, C2H6O,C2⁢H6O, and 54.0 mL54.0 mL of water.…

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Q: What mass of fructose, C5H10O5(molar mass is 150.2 g) in grams, should be added to 50.0 g H2O to…

A: Mass of H2O = 50.0 g. Boiling point of solution = 102.45°C  Kb = 0.512 °C/m Molar mass of fructose =…

Q: ethylene glycol freezes at 11.5 °c what is its freezing point

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Q: What is the freezing point?

A: Given: Normal boiling point of solution=103°C Boiling point of H2O=100°C Kb=0.51°C/m Kf =1.86°C/m…

Q: The boiling point of water is 100.00 °C at 1 atmosphere. A student dissolves 10.99 grams of…

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Q: Ethanol has a K, of 1.22 °C/m and usually boils at 78.4 °C. What is the boiling point of the…

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Q: A certain substance X condenses at a temperature of 128.4 °C. But if a 800. g sample of X is…

A: we need to calculate the value of molal boiling point elevation constant of X

Q: Hydrogen chloride (HCl) gas is much more soluble thanpropane gas (C₃H₈) in water, even though HCl…

A: Like dissolves like is a common phrase. It describes that similarities attract. The dissolution of a…

Q: Which of the following gases does have a greater solubility in liquid water at 25 °C under the…

A: The solubility (S) of a gas in a liquid at a certain temperature is represented by the following…

Q: A certain substance X condenses at a temperature of 108.9°C. But if a  950.g sample of X is…

A: Since condensation point is equivalent to boiling point. So we used the colligative property…

Q: Select the one with the highest boiling point. Select the one with the lowest freezing point. A. 1.0…

A: Elevation of boiling point (∆Tb) is directly proportional to molality of solution ∆Tb = i × Kb × m…

Q: The freezing point of water is 0.00°C at 1 atmosphere. A student dissolves 14.50 grams of aluminum…

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Q: The freezing point of water is 0.00°C at 1 atmosphere. A student dissolves 12.66 grams of…

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Q: Calculate the freezing and boiling points for 0.45 mol ethylene glycol a d 0.15 mol KBr in 150 gram…

A: kf for water is 1.186K.kg.mol-1.kb for water is 0.512 K.kg.mol-1.The freezing point for 0.45mol…

Q: A certain substance X condenses at a temperature of 113.6 °C. But if a 300. g sample of X is…

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Q: Calculate the mass % of naphthalene(C10H8) in 50.0g of methanol to obtain a vapor pressure of 118…

A: Given: The solute is naphthalene(C10H8) and the solvent is methanol(CH3OH). The pure vapor pressure…

Q: Magnesium chloride is often used to melt ice on sidewalks. Considering that the solubility of…

A: The melting point is calculated as, ΔT = iKf m Kf = 1.86 oC/m i = Vant Hoff factor For MgCl2, i = 3

Q: Ethanol has a Kb of 1.22 ºC/m and usually boils at 78.4 ºC. What is the boiling point of a solution…

A: ∆Tb = Kb x Molality Where, Kb = Molal elevation constant; ∆Tb = elevation in boiling point Molality…

Q: The addition of KBr to water causes the vapor pressure to: a. Increase b. Decrease c. Stay the same…

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Q: DMG is an organic compound used to test for aqueous nickel(II) ions. A solution prepared by…

A: Given: Mass of DMG = 65.0 g Mass of ethanol = 375 g Boiling point of solution = 80.3°C Boiling point…

Q: At what temperature (in °C) does ethanol boil if 80.5 g of propylene glycol (molar mass = 76.11…

A: The question is based on the concept of solutions.   Molality is a method of expressing…

Q: 5.152g of Na2CO3(s) is added to 75.0mL of water at 21.20°C. When the dissolution is complete, the…

A: The strongest intermolecular force present in Na2CO3 is ionic force.

Q: The boiling point of chloroform, CHCl3, is 61.70°C at 1 atmosphere. A nonvolatile, nonelectrolyte…

A: Given data contains, Mass of aspirin is 14.17 grams. Mass of chloroform is 238.1 grams. The boiling…

Q: The freezing point of ethanol, CH3CH₂OH, is -117.30°C at 1 atmosphere. A nonvolatile, nonelectrolyte…

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Q: The freezing point of water is 0.00°C at 1 atmosphere. A student dissolves 13.21 grams of sodium…

A: Given mass of sodium chloride = 13.21 g Molar mass of sodium chloride = 58.40 g/mol Number of moles…

Q: Cinnamaldehyde (132.16 g/mol) is used as a flavoring agent. What mass of cinnamaldehyde must be…

A: Elevation in boiling point is a colligative property, i.e. it depends on the amount of solute…

Q: 95.0 g of compound A (Mwt=46), with vapor pressure 400 mmHg at 50°C, mixed with 5 g of compound B…

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Q: The vapor pressure of octane is lower than the vapor pressure of butane at a given temperature. true…

A: The vapour pressure of two hydrocarbon depends on the strength of intermolecular forces as follows.

Q: A certain substance X condenses at a temperature of 113.6 °C. But if a 350. g sample of X is…

A: Liquid condensation temperature corresponds to the temperature at which it boils . Thus boiling…

Q: Cinnamaldehyde (132.16 g/mol) is used as a flavoring agent. What mass of cinnamaldehyde must be…

A: The mass of cinamaldehyde added has to be calculated.

Q: A mixture containing 33.0 g of an unknown liquid and 230.0 g of water has a freezing point of -1.12…

A: The depression in freezing point is given by  depression in freezing point = i X Kf X m where i =…

Q: A 3.140 molal solution of NaCl is prepared. How many grams of NaCl are present in a sample…

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Q: Convert the following temperature. Show your solution.   1. 198 oF to oC 2. 112 oF to oC 3. 24…

A: The relation between celcius and farenheit scale is given by----------- oF = 95 oC + 32