When carrying out a molar mass determination by freezing point depression experiment. If a solute like chlorobenzene (molar mass = 112.6 g/mol) were used by mistake instead of naphthalene for the determination of the freezing point constant, how would the calculated value of Kf compare to that expected from naphthalene (high, low, no effect)?

Q: Below are 2 vapor pressure curves. One is for pure water and the other for an aqueous solution of a…

A: Given that: vapor pressure of the water above the MOH solution = 0.65 atm To calculate: the mole…

Q: 1.Assume that the measured freezing point of pure cyclohexane using your thermometer was 6.0 °C. A…

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Q: The boiling point of ethanol CH3 CH₂OH is 78.50 °C at 1 atmosphere. A nonvolatile, nonelectrolyte…

A: Mass of solvent (ethanol) = 295.0 g = 0.295 kg Raise in boiling point (ΔTb) = 0.300°C Mass of solute…

Q: Suppose that you add 27.6 g of an unknown molecular compound to 0.250 kg of benzene, which has a…

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Q: Suppose that you add 24.3 g of an unknown molecular compound to 0.250 kg of benzene, which has a…

A: Given, mass of unknown molecular compound=24.3gm mass of benzene=0.250 Kg Kf of Benzene=5.12°C/m…

Q: When 151. g of benzamide (C₂H-NO) are dissolved in 500. g of a certain mystery liquid X, the…

A: The mass of benzamide = 151. g The mass of the liquid X = 500. gThe depression in freezing point  =…

Q: Molecular Formula from Elemental Analysis and Molecular Mass Determination An unidentified covalent…

A: Given,mass of  unknown compound = 6.00 mgmass of water = 1.93 mgmass of CO2 = 16.49 mgfreezing point…

Q: The boiling point of ethanol CH3CH,OH is 78.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that…

A: Number of grams of ethanol given = 224.0 g Molar mass of testosterone = 288.4 g/mol Elevation in…

Q: The boiling point of diethyl ether, CH3CH20CH2CH3, is 34.500 °C at 1 atmosphere. K(diethyl ether) =…

A: (1) Given that: boiling point of diethyl ether = 34.500 °C Kb(diethyl ether) = 2.02 °C/m  mass of…

Q: Molecular Formula from Elemental Analysis and Molecular Mass Determination An unidentified covalent…

A:

Q: 24.9 g of an unknown molecular solute is dissolved in 5.01 moles of 1,2-ethanediol (C2H6O2), causing…

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Q: A substance suggested as a possible solvent for use in molecular mass determinations by freezing…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: When 9.730 g of aspirin was dissolved in 102.7 g of benzene, the freezing point was 275.9 K. What is…

A: What is the formula mass of this compound?

Q: When 74.8g of alanine C3H7NO2 are dissolved in 1450.g of a certain mystery liquid X, the freezing…

A: Given  alanine mass= 74.8g , mass of solution = 1450g=  the depression of freezing point ∆Tf =…

Q: Calculate the freezing point of a solution made by adding 16.43 g of a nonelectrolyte (125.5 g/mol)…

A: Molality is the number of solvent moles per kilogram.Molality is also known as molal concentration.…

Q: Given that the vapor pressure of water is 17.54 Torr at 20 ∘C, calculate the vapor‑pressure…

A: Given,Vapor pressure of water = 17.54 Torr at 20 °CConcentration of sucrose solution = 2.30…

Q: The freezing point of lauric acid was lowered by 1.68°C when a 3.706 g sample of a nondissociating…

A: Solution- The freezing point depression (ΔTf) is given by the formula:  ΔTf = Kf × m × i where Kf is…

Q: The mass percent composition of an organic compound showed that it contained 40.0% C, 6.7% H and…

A: Given,percentage by mass of atoms in the compound:    40.0% C, 6.7% H and 53.3 % OMass of compound =…

Q: Vitamin K is involved in normal blood clotting. When 0.853 g of vitamin K is dissolved in 25.0 g of…

A: Given that:  Mass of vitamin K = 0.853g  Mass of camphor solvent = 25.0g = 25.0g×1Kg/1000g = 0.025Kg…

Q: 1.500 g of a non-dissociating compound is dissolved in 15.00 g of pure water (Kf= 1.86°C/m). The…

A: Calculation of Molar mass of the unknown compound: The mass of the unknown compound = 1.500 g The…

Q: What is the boiling point elevation constant of ethanol if a solution prepared by dissolving 52.00 g…

A: The relationship between elevation in boiling point (∆Tb) and molality (m) of solution is given by…

Q: At what temperature will 40g NaCl dissolve in 100g water?

A: Using the solubility curve of NaCl with temperature, for 40g of NaCl to be dissolved  in 100g of…

Q: When 45.6 g of glycine C2H5NO2 are dissolved in 750. g of a certain mystery liquid X, the freezing…

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Q: 1 Why did the addition of an unknown substance change the freezing point of naphthalene?

A: Freezing point change is a colligative property,that is freezing point change depend on no of ions…

Q: A 0.520 g sample of an unknown nonelectrolyte compound is dissolved in 4.07 g of lauric acid (Kf =…

A: Given : Mass of sample = 0.520g KF = 3.900C/m

Q: Part A A solution contains 4.08 g of chloroform (CHCI3 ) and 9.29 g of acetone (CH3 COCH3). The…

A: Given,  mass of CHCl3  = 4.08 g Mass of acetone = 9.29 g Vapour pressure of purr CHCl3 = 295 torr…

Q: When 0.4129 grams of menthol (MW: 156.27 g/mol) is dissolved in a certain amount of cyclohexane, the…

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Q: Which of the compounds A-D would be expected to dissolve in dilute sodium hydroxide? H3C. во жизн OH…

A: The objective is to determine the compound that would be dissolved in dilute sodium hydroxide.Given…

Q: Calculate and enter the freezing point depression of a solution of 52.4 g ethylene glycol (C2H6O2)…

A: B) given,  Assume molar mass is = M Mass solute = 77.5 g Mass of Water = 342 g = 0.342 kg Molality =…

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.