If through a freezing point depression experiment it was determined that the molality of a solution consisting of 7.50 g of a covalent solid dissolved in 0.100 kg of a solvent is 0.122 molal, then what is the molar mass of the covalent solid?

Q: The vapour pressure of pure CCI4 at 65 °C is 504 mmHg .How many grams of glucose (C6H12O6) must be…

A: The vapour pressure of a solution can be determined as below : Psolution  = Xsolvent. Psolvent Where…

Q: Given kf for water is 1.86 K/m. What would be the expected change in freezing point for a aqueous…

A: Kf = 1.86 K/m  Molality (m) = 0.5 m Van't Hoff factor = 1  Change in freezing point (∆Tf) = ?

Q: 10 g of a solute was dissolved in 80 g of acetone at 30°C. The vapour pressure was found to be 271…

A: When a non-volatile solute is added, the vapour pressure of solvent decreases. This could be calc

Q: Calculate the molality of a sucrose solution made by dissolving 39.5 grams sucrose into 99.6 grams…

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Q: Calculate the molalities of the following aqueous solutions: (a) 1.016 M sugar (C12H22011) solution…

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Q: The boiling point of a 1.50 m (molal; moles solute/kg solvent) aqueous solution of LiI would be…

A: The elevation in boiling point is calculated as ∆Tb = i × Kb × m Here, ∆Tb = elevation in boiling…

Q: The measured boiling point for a saturated solution of sodium chloride dissolved in methanol is…

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Q: The mole fraction of CH3OH in an aqueous solution is 0.02 and density of solution 0.994 g cm-3 .…

A: Molality is the term which is used to define the concentration of the solution. It is defined as the…

Q: What is the boiling point elevation of a 0.055 m glucose in aqueous solution in ⁰C? Freezing point…

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Q: Explain on a particle basis why the vapor pressure of a solution is lower than a pure solvent

A: Colligative properties Properties that depend on the number of particles present, not on the…

Q: If the boiling point of an aqueous solution (i.e., using water as the solvent) containing a…

A: Boiling point of solution = T2 = 101.02°CBoiling point of water = T1 = 100°CElevation in Boilling…

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 density of a solution having 98 grams of Sulphuric acid(H2SO4) in 1 liter solution is 1.098…

A: Molarity of the solution is 84.74

Q: 10 g of a solute was dissolved in 80 g of acetone at 30°C. The vapour pressure was found to be 271…

A:

Q: Calculate the molality of a solution that contains 1.43 g carvone in 15.2 mL of ethanol (density…

A: Molar mass of carvone is 150.22 g/mol.Number of moles of carvone can be determined as follows,

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: The osmotic pressure of an aqueous solution at 300 K is 120 kPa. Calculate the freezing point of the…

A: First calculate relation between osmotic pressure and depression in freezing point  freezing point…

Q: Calculate the molality of a solution that is prepared by mixing 25.5 mL of CH3OH (d = 0.792 g/mL)…

A: The answer is given as follows

Q: Calculate the mole fraction, molarity and molality  of NH3 if it is in a solution composed of 30.6g…

A: Molarity is the unit of concentration of a solution, and its unit is mol/Lmol/L. It is defined by…

Q: Explain why freezing point depression is observed when a non-volatile solute is dissolved in a…

A: Solution Freezing point of depression may be a colligative property of resolution. it's discovered…

Q: Aqueous ethanol solutions are prepared by mixing measured weights of assayed ethanol and…

A: Given that -  Mass percentage of ethanol = 18.5% , which means that Solution contains 18.5 gram of…

Q: calculate the molality and the mass percent of the solute in a solution of toluene (C7H8) and…

A: The relation between molality and mole fraction of solute is shown below:

Q: A 9.386 M aqueous solution of sulfuric acid has a density of 1.5091 g cm-3. Calculate the molality,…

A: Molality is equal to the number of moles of solute dissolved per kg of solvent. It is denoted by m.…

Q: Calculate the osmotic pressure of a solution at 300 K that is 0.500 M in sucrose and 0.500 M in KCl

A: Given :we have to calculate the osmotic pressure of a solution at 300 K that is 0.500 M in sucrose…

Q: Consider a hydrogen peroxide (H2O2) solution that is 19.9 molal.  Given the density of solution is…

A: Given: The molality of the solution = 19.9 m The density of the solution = 1.04 g/mL Standard…

Q: Suppose you dissolve 0.210 g of a newly isolated protein in 25.o ml of water. The solution has an…

A: Given,  Mass of protein, (W2) = 0.210 g  Volume of solution = 25 ml = 0.025 L  Temperature, T = 275…

Q: A water solution containing an unknown quantity of a nonelectrolyte solute has a freezing point of…

A: molal depression in freezing point    ∆Tf = Kf x m(To - Ts ) = Kf   x  m where  Ts = freezing…

Q: What is the molality of a solution that was obtained through the dissolution of 240 mL of pure…

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Q: The freezing point depression equation tends to be used for nonvolatile solutes. Offer an…

A: Volatile means that solute which will evaporate aur  change its state. Non volatile solute is which…

Q: Molality is defined as the number of moles of solute per kilogram of solvent. If the concentration…

A: Molality = Number of moles of solute/Mass of solvent in kg Mass = Volume × density Number of moles =…

Q: Why is it necessary to express the concentration of solute in units of molality rather than…

A: Given : We have to tell why there is need to tell mass of solute in terms of molality .

Q: At 25°C, the density of 50 % by mass ethanol-water solution is 0.914 g cm. Given that the partial…

A: Consider the 100.0 g of solution, in which 50.0 g of ethanol and 50.0 g water is present in the…

Q: You have a sucrose solution of 28°Brix or 28 grams of sugar per 100 grams solution in a ripe grape…

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Q: Given: mass of ethanol used in the experiment =15.7g Mass of unknown solution =4.09g Volume of…

A: Elevation of boiling point happens when in a pure solvent some amount of solute is added.

Q: Calculate the molality of a sucrose solution made by dissolving 26.8 grams sucrose into 93.6 grams…

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

Q: Aqueous ethanol solutions are prepared by mixing measured weights of assayed ethanol and…

A: Molality is defined as no.of moles of solute devided by mass of solvent in Kg.

Q: Calculate the freezing point depression for a 2molal solution in water.

A: Freezing point (Tf) - Temperature at which vapor pressure of solid exactly equals to vapor pressure…

Q: If you use 2.55 mol of sucrose (C12H22O12) and dissolve this into 1.75 kg of water, what will be the…

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Q: Calculate the molality of an alcohol in aqueous solution if the mole fraction of the alcohol is…

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Q: 9. When dissolved in 100 g of a solvent whose molecular weight is 94.10 and whose freezing point is…

A: In the first case, Given mass of solvent = 100 g or 0.1 kg. Given mass of solute = 0.55 g Molar mass…

Q: The depression of the freezing point with FeCl3 s 0.2976 degC and molality is 0.050 m.  Calculate…

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Q: The solution prepared by dissolving 6.06 g of triphenyl methane [(C6H5)CH] in 1000 g of benzene,…

A: Given : Mass of solute i.e triphenyl methane = 6.06 g Mass of solvent i.e Benzene = 1000 g = 1 Kg…

Q: what is the molality of a 0.3 osmolal solution of CaCl2

A: Given: The osmolality of the CaCl2 solution = 0.3 osmolal CaCl2 is made up of three ions, i.e., Ca2+…

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.