Suppose the freezing point of a solution of 2.00 g of an unknown molecular substance in 10.00 g of the solvent benzene is measured. If the solution freezes at a temperature of 6.33 °C lower than pure benzene itself, calculate the molar mass of the unknown substance.

Q: Now a solution is prepared by dissolving solid FeCl3 ( molar mass = 162.2 g/mol)in water. If the…

A: Given that:                 Mass percentage = 26.0 %                 Density of solution = 1.25 g/mL…

Q: Calculate the freezing temperature of the following solution of 0.50 M sodium chloride (an ionic…

A: Molality of NaCl = 0.5 m The equation along with vant Hoff factor -  NaClaq ⇔Na+ aq+ Cl-aqi value…

Q: Find the boiling point of a solution of 92.1 g of iodine, I2, in 800.0 g of chloroform, CHCl3,…

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Q: Calculate the molality of each of the following aqueous solutions: (a) 2.55 M NaCl solution (density…

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Q: The molal elevation constant for water is 0.512°C kg mol–. When 0.5 mole of sugar is dissolved in…

A: Boiling point is the point at which the vapour pressure of a solvent becomes equal to the…

Q: The normal boiling point of diethyl ether is 34.58C. A solution containing a nonvolatile solute…

A: The normal boiling point of diethyl ether is 34.58 °C. A solution containing a non-volatile solute…

Q: Calculate the molality, the molarity, and the mole fraction of NH3 in an 11.10 mass % aqueous…

A: 100 gram of the aqueous solution contains 11.10 grams of ammonia. The molar mass of ammonia is 17…

Q: Calculate the molality of a 0.410 molar aqueous glucose solution whose density is 1.15 g/mol

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Q: Illustrate the common ways of expressing the concentration of a solute in a solvent: mass…

A: A dilute solution means solute is present in the least quantity. It refers to the quantity of solute…

Q: Determine the molality of a solution prepared by dissolving 75g of Ba(NO3)2(s) in 374g of water at…

A: Given that: mass of  Ba(NO3)2(s) = 75 g  mass of water = 374 g  To find: molality of a solution?

Q: An aqueous solution contains 5% NACl by mass. Calculate the molality and mole fraction.

A: Interpretation -  To determine the molality and mole fraction of an aqueous solution contains 5%…

Q: Why do colloids exhibit the Tyndall effect but solutions do not?

A: A solution can be defined as the mixture of solute with solvent. Here solute is the substance in…

Q: Consider a sealed solution of dichloromethane (vapor pressure = 353 mmHg at 20 °C) and chloroform…

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Q: Explain the meaning of the van’t Hoff factor and its role in determining the colligative properties…

A: Colligative properties are the properties which are dependent on the number of solute…

Q: alculate the molality of a 0.898 M ethanol (C2H5OHC2H5OH) solution whose density is 0.429 g/ml.

A: Molality(m):It is defined as number of mole of solute dissolved in per  kilogram of solvent.…

Q: The freezing point of a solution containing 65 g of a compound in 100 g of  benzene is 3.80C. What…

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Q: Calculate the molality of a solution prepared by dissolving 15 grams of ethylene glycol (HOCH2CH2OH)…

A: Given mass of ethylene glycol = 15 g Molar mass of ethylene glycol = 62.07 g/mol Number of moles =…

Q: Calculate the mole fraction (of each component) of a solution prepared by dissolving 125 mL of pure…

A: It is defined as the number of moles of the solute to the total number of moles. mole fraction= no.…

Q: Calculate the vapor pressure of a solution consisting of 3 moles of a nonvolatile solute and 15…

A: Given :-  Number of moles of water = 15 mol  Number of moles of non-volatile solute = 3 mol  Vapour…

Q: After the addition of 24 g of ethanol (C2H5OH) to 1 kg of water, the freezing point of the solution…

A: Cryoscopic constant: It is the freezing point depression that is produced when the one mole of the…

Q: A solution is prepared by dissolving 0.131 g of an ionic compound in 25.4 g of water. The ionic…

A: Here, the molality of the solution is given as 0.056 m. The molality indicates, moles of solute…

Q: The molar mass of unknown molecular compound is determined using freezing point depression. The…

A: Since benzene is non, electrolyte, i = 1 ∆Tf = Tbenzene -T solution          = 5.53 -(-10.21) =…

Q: Given that an aqueous solution of ethylene glycol in water has a vapor pressure lowering of 16.0…

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Q: Calculate the freezing temperature of the following solution of 0.50 M sodium chloride (an ionic…

A: Introduction: Depression in Freezing point:                                The phenomenon by which…

Q: Two different aqueous solutions – 0.1 M NaCl and 0.1 M KNO3 – have the same freezing points. Explain…

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Q: A solution is prepared by mixing 1.00 g of ethanol (C2H5OH) with 100.00 g of water to give a final…

A: In order to calculate the molarity and the mole fraction we first write down the given data: Mass of…

Q: Calculate the molality of the solution formed when 1.5g of urea (molar mass = 60g / mol) is…

A: Given, 1.5g of urea (molar mass = 60g / mol) is dissolved in 200g of benzene

Q: The density of an aqueous solution  containing 10%(w/w) of ethanol is 0.985g/ml. Calculate the…

A: Given, Density of ethanol solution = 0.985 g/mL % of ethanol in the solution = 10 % (w/w)

Q: What is the effect on the vapor pressure of a solution with particularly strong solute-solvent…

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Q: When carrying out a freezing point depression experiment with cyclohexane, napthalene, and an…

A: The question depends on the concept of colligative property. Depression in freezing point is a…

Q: How can we calculate the Vapor Pressure of a Two-Component Solution?

A: The measure of ability to material to convert into the gaseous state (or) vapor state is known as…

Q: The mole fraction of NaCl in an aqueous solution of NaCl is 0.23. What is the molality of the…

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Q: Consider a mixture of hexane and heptane as an ideal solution. In what proportion by mass should…

A: ∆mixS is the entropy of mixing which is defined as the increase in entropy when two or more separate…

Q: Calculate the freezing point of an aqueous solution prepared from a non-volatile solute that has a…

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Q: Sodium hydroxide is available commercially as 50.0% by weight aqueous solution. Calculate the…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: Calculate the freezing point of 10% MgCl2 solution (MWMgCl2 = 95.3, kf = 1.86 kg C / mol)

A: 1) Molality of solution  10% MgCl2 solution  10 g MgCl2 dissolved in 100 g solution  mass of MgCl2…

Q: Explain the existence of colligative properties using the concept of chemical potentials.

A: Colligative properties

Q: A 0.9720 M aqueous solution of NaCl has a density of 1.03625 g/cm3 at 25 °C, Calculate the molality…

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Q: Explain the difference between an ideal and a nonideal solution.

A: In an ideal solution, the magnitude of solute-solvent interactions is similar to solvent-solvent and…

Q: If the mole fraction of water in NaCl aqueous solution is 0.75, calculate the molality of NaCl in…

A: Answer: Molality of a solute in a solution is the ratio of its number of moles with the mass of…

Q: How can we calculate the freezing point of a solution prepared from a solvent and nonvolatile…

A: Given : Non-volatile solute in a solution  To find : Calculation of a freezing point of solution.…

Q: What is the boiling point elevation of a 1 molal aqueous solution?

A: Elevation in boiling point is observed when a non-volatile solute is added to a pure solvent to form…

Q: What is the mole fraction of ethanol of an aqueous solution that is 20% ethanol?

A: Given : Ethanol = 20%

Q: Define the following terms :(i) Mole fraction (x)(ii) Molality of a solution (m)

A: The concentration is the measure of the amount of the substance that gets dissolved in another…

Q: Calculate the molal concentration of a solution that contains 18 g of sodium hydroxide (NaOH) in 100…

A: Molal concentration =moles of solutemass of solvent = mass of solutemolar mass of solute x mass of…

Q: The normal boiling point of methanol is 64.7°C. A solution containing a nonvolatile solute dissolved…

A: Given datas ;  At 64.7°C , Psoln = 670.0 torr  Vapour pressure of pure solvent (Methanol)  = 1.0 atm…

Q: The molal elevation constant for water is 0.513 °C kg mol–. When 0.8 mole of sugar is dissolved in…

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Q: Consider a solution of MgCl2(aq) with a molality of 0.00245 mol kg-1 Calculate the freezing point of…

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Q: added to a solvent such as water, which of the following boiling points is not reasonable for the…

A: As we know,  if we add Non-volatile solute in water , elevation in boiling point takes place. So,…

Q: Determine the freezing point of a solution that contains 48.8 g of naphthalene (C10Hs, molar mass =…

A: This question is checking our concepts about depression on freezing point of solution. As we can see…

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.