When 14.4 g14.4 g of an organic compound known to be 55.81% C55.81% C, 7.0% H7.0% H, and 37.17% O37.17% O by mass is dissolved in 825.8 g825.8 g of benzene, the freezing point is 4.80 ∘C4.80⁢ ∘C. The normal freezing point of benzene is 5.49 ∘C5.49⁢ ∘C. What is the molecular formula for the organic compound? Assume that the organic compound is a molecular solid and does not ionize in water. ?fKf values for various solvents are given in the colligative constants table. molecular formula: CHO

Q: What is the mole fraction of benzene, C6H6, in the vapor phase from a solution consisting of a…

A: vapour pressure of benzene = 768 torr vapour pressure of toluene = 283 torr Mole fraction of…

Q: Calculate the molality of a solution produced by dissolving 15.2 g of calcium chloride in 345 g of…

A: Definition of Molality: It is defined as number of moles of solute dissolve in 1 kg of solvent .…

Q: The freezing point of ethanol, CH3CH,OH, is -117.300 °C at 1 atmosphere. KAethanol) = 1.99 °C/m In a…

A: Given: Mass of compound (solute) = 12.60 g Mass of ethanol (solvent) = 265.8 g Freezing point of…

Q: When 50.5 g of urea (CH,N,0) are dissolved in 1200. g of a certain mystery liquid X. the freezing…

A: Weight of urea=50.5 g  Weight of liquid X=1200g = 1.2 kg (1Kg = 1000 gm)

Q: A certain liquid X has a normal freezing point of -3.00 °C and a freezing point depression constant…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

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: Eicosene is a molecular compound and nonelectrolyte with the empirical formula CH2. The freezing…

A: Given that:  Depression in freezing point is 1.75°C  Kf for benzene is 4.90°C/m  Mass of eicosene…

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 the solution can be calculated as follows:

Q: What is the freezing point depression constan

A: Depression in freezing point is the result of adding a solute to a solvent.  When a substance starts…

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

A: Given Kf for water is 1.86 °C･kg/mol Freezing point of ethylene glycol  =  -3.60 °C Freezing point…

Q: The normal freezing point of cyclohexane is 6.50 °C. A solution is prepared by dissolving 258.0 mg…

A: Here the solvent is cyclohexane whose Kf value is 20.0 oC/m, and the solute is the unknown…

Q: When 40.0 grams of an unknown compound are dissolved in 500. grams of benzene, the freezing point of…

A: Given that :  Mass of unknown compound = 40.0 g  Mass of benzene(solvent) = 500. g  Freezing point…

Q: Calculate the freezing point of a solution of 40.0 g methyl salicylate, C 7H 6O 2, dissolved in 800.…

A:

Q: The vapor pressure of chloroform is 173.11 mm Hg at 25 °C. A nonvolatile, nonelectrolyte that…

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Q: The vapor pressure of diethyl ether (ether) is 463.57 mm Hg at 25 °C. A nonvolatile, nonelectrolyte…

A: 1- First calculate the moles of solute and solvent :  a) moles of aspirin = ( mass / molar mass )…

Q: The freezing point of benzene, C6H6, is 5.500 °C at 1 atmosphere. Kf(benzene) = 5.12 °C/m In a…

A:

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

A:

Q: Elemental analysis of phytoene, an intermediate in the biosynthesis of carotenoids, shows that it…

A: Depression in freezing point (dTf) of a solution is a colligative property that is calculated as per…

Q: What would be the vapor pressure of water at 85°C above a solution made by dissolving 42.71 g of…

A: When  a non volatile solute adds to a volatile solvent , the vapour pressure of solvent lowers.…

Q: 10.0 g of an organic substance is dissolved in 80.0 g of benzene. The freezing point of the solution…

A: Mass of benzene = 80.0 g = 0.080 Kg mass of organic solute = 10.0 g Freezing point of this solution=…

Q: A solution was made by mixing 6.25 g of heptane (C7H63, molar mass = 100.21 g/mol) with 46.2 g of…

A:

Q: The freezing point of water, H₂O, is 0.000 °C at 1 atmosphere. Kf(water) = 1.86 °C/m In a laboratory…

A:

Q: When 6.66 g of a certain molecular compound X are dissolved in 60. g of benzonitrile (CH₂CN), the…

A:

Q: When  238.   mg  of a certain molecular compound X are dissolved in  90.0   g  of benzonitrile…

A:

Q: on of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that…

A:

Q: The freezing point of water, H₂O, is 0.000 °C at 1 atmosphere. Kf(water) = 1.86 °C/m In a laboratory…

A:

Q: When 28.2 g of urea (CH4N₂O) are dissolved in 1150. g of a certain mystery liquid X, the freezing…

A: Given,mass of urea ( CH4N2O ) = 28.2 gmass of solvent 'X' = 1150. gchange in freezing point of urea…

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…

A:

Q: The vapor pressure of diethyl ether (ether) is 463.57 mm Hg at 25 °C. A nonvolatile, nonelectrolyte…

A: Formula used  Xsolvent =  Psolution/ Psolvent  where Xsolvent = mole fraction of solvent  Psolution…

Q: When 27.5 g of a certain molecular compound X are dissolved in 90. g of benzonitrile (C6H₂CN), the…

A: Weight of unknown compound X = 27.5 g Weight of solvent benzonitrile = 90. g Molar mass of…

Q: The freezing point of benzene, C6H6, is 5.500 °C at 1 atmosphere. Kf(benzene) = 5.12 °C/mIn a…

A: The objective of this question is to determine the molecular weight of a newly synthesized compound…

Q: When 397.g of benzamide C7H7NO are dissolved in 1400.g of a certain mystery liquid X, the freezing…

A: First of all we calculate the Kf of mystery liquid X using benzamide. For this purpose we use…

Q: The vapor pressure of diethyl ether (ether) is 463.57 mm Hg at 25 °C. A nonvolatile, nonelectrolyte…

A: When a solute is added in pure solvent then its vapor pressures gets lowered. It is referred as a…

Q: When 173. mg of a certain molecular compound X are dissolved in 100 g of cyclohexane (C6H12), the…

A: Answer:For a non-electrolyte and non-volatile solute dissolved in a solvent, depression in freezing…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.