A 7.85 g sample of a compound with empirical formula C5H4 is dissolved in 301 g of benzene. The freezing point of the solution is 1.05 °C below that of the pure benzene. What are the molar mass and molecular formula of this compound? Kf for benzene is 5.12 °C/m.

Q: The freezing point of cyclohexane is 6.2 ∘ C. You added 0.165 g of an unknown solid to the…

A: Given that, Freezing point of pure benzene = 6.2oC Freezing point of the solution = -3.0oC

Q: Calculate the molality of chloride ions in an aqueous solution of magnesium chloride in which the…

A: To solve this problem we will use the formula of molality

Q: The freezing point of p-dichlorobenzene is 53.1 °C; its kf value is 7.10 °C/m.  A solution of 1.52 g…

A:

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: 14. Certain compounds are known to “dimerize” in solution – this means that the intermolecular…

A: The depression in freezing point is given by  ΔTf = i * Kf * molality where ΔTf = depression in…

Q: Calculate the freezing point of a solution containing 50.0 g of NaCl in 5000 mL of water. kf for…

A: When a non-volatile solute is added to the solvent, the freezing point of the solution decreases…

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: The density at 20 ∘C of a 1.645 MM solution of acetic acid in water is 1.0121 g/mL. The molar mass…

A:

Q: Find molal concentration of a sugar solution in water that has a freezing point of -2.1C. Kf=1.86C/m…

A: The molality of the species can be expressed as the ratio of the moles of the species to the solvent…

Q: Vitamin K is involved in normal blood clotting. When 1.50 g of vitamin K is dissolved in 25.0 g of…

A: Given: mass of  vitamin K = 1.50 g mass of camphor = 25.0g = 0.25 / 1000 = 0.025 Kg Depression of…

Q: Antifreeze is composed mainly of ethylene glycol (C2H6O2, d = 1.11 g/cm3). It is added to a car…

A: The relationship between depression in freezing point (∆Tf) and molality of solition is  ∆f = kf ×…

Q: 1) A solution containing 10.0 g of an unknown molecular liquid and 90.0 g water has a freezing point…

A:

Q: When 0.357 g of an unknown compound was dissolved in 60.0 g of benzene (MM: 78.11g/mol), the…

A:

Q: The vapor pressure of diethyl ether (molar mass, 74.12 g mol-1)at 30°C is 0.8517 atm. Suppose 1.800…

A: The vapor pressure of diethyl ether (molar mass, 74.12 g mol-1)at 30°C is 0.8517 atm.  vapor…

Q: A 3.782−g sample of a mixture of cyclohexane (C6H12) and naphthalene (C10H8) is dissolved in 57.30 g…

A: Given:Mass of the sample = 3.782 gMass of Benzene = 57.30 gFreezing point of the solution = 1.90°CWe…

Q: The freezing point of ethanol (C2H5OH) is -114.6⁰C. What is the freezing point of the solution…

A: Given: The freezing point of ethanol=-114.6°C mass of glycerin=50.0g Mass of ethanol=200.0g Freezing…

Q: What is the freezing point of a 1,4-dioxane solution if that same solution boils at 103.0 °C? The…

A: From the formula of elevation in boiling point, and depression in freezing point, we can solve the…

Q: When 6.31 g of a certain nonvolatile solute is dissolved in 505 g of water, the freezing point of…

A: Given data is as follows: The mass of nonvolatile solute = 6.31 g The mass of water = 505 g = 0.505…

Q: A solution consisting of a molecular substance of mass 1.14 g dissolved in 100. g of camphor freezes…

A:

Q: When 6.29 g of a certain nonvolatile solute is dissolved in 500 g of water, the freezing point of…

A:

Q: Some unknown compound reduces the freezing point of benzene from 5.53 to 4.80˚C. What is the…

A: Molality of a solution can be defined as number of moles of solute dissolved per kilogram of solvent…

Q: 1-A sample of pure t-butyl alcohol weighing 6.22 g was found to have a freezing point of 24.7 °C.…

A:

Q: The freezing point of a solution that contains 1.1 g of an unknown compound, (A), dissolved in 12 g…

A: The freezing point of solvent decreases on addition of non volatile solute as the solute occupies…

Q: A solution made by dissolving 150.0 g of an unknown compound in 365.0 mL of benzene to make a…

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only.

Q: A sample of 4.4 g of toluene, C7H8, is dissolved in 60.00 g of camphor. What is the freezing point…

A: Information about the question

Q: Menthol is a crystalline substance with a peppermint taste and odor. When 1.10g of menthol is…

A:

Q: If the freezing point of the solution was observed to be -8.6 °C, and the normal freezing point of…

A: Given: Freezing point of solution = -8.6 oC The freezing point of pure solvent i.e. cyclohexane=…

Q: when 0.455 g of an unknown compound is dissolved in 10.0 g of benzene, the freezing point of the…

A: The expression for depression in the freezing point is shown below.

Q: 19.45 g of an unknown compound decreased the freezing point of 303 g of benzene (Kf= 5.12 ∘C  /m) by…

A: We use the depression in freezing point equation.

Q: A solid consists of a mixture of NaNO3 and Mg(NO3)2. When 6.50 g of the solid is dissolved in 50.0 g…

A:

Q: A solid consists of a mixture of NaNOz and Mg(NO3)2. When 6.50 g of the solid is dissolved in 50.0 g…

A: Decrease in the freezing point of solution by addition of a nonvolatile solute is known as…

Q: A 3.40-g sample of a mixture of naphthalene (C10H8) and pyrene (C16H10) is dissolved in 35.0 g…

A:

Q: Compound XY is an ionic compound that dissociates as it dissolves in water. The lattice energy of XY…

A:

Q: What is the molality of NaCl in a solution that is 3.000 M , with a density of 1.070g mL^ - 1? Based…

A:

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

A: Given: Freezing point of benzene = 5.500 °C  Freezing point of solution = 4.500 °C  Mass of compound…

Q: A solid consists of a mixture of NaNO3 and Mg(NO3)2. When 6.50 g of the solid is dissolved in 50.0 g…

A: Given : Mass of mixture sample i.e solute = 6.50 g Mass of water i.e solvent = 50.0 g = 0.050 Kg…

Q: A 5.96 g sample of a compound that is not an electrolyte is dissolved in 212.0 g of benzene. The…

A: Freezing point depression = i × m × Kf

Q: A solution made by dissolving 150.0 g of an unknown compound in 425.0 mL of benzene to make a…

A: The molality of the solution is to be calculated The moles of the unknown compound was dissolved in…

Q: When 60.1 mg of a certain molecular compound X are dissolved in 70.0 g of benzene (C6H6), the…

A:

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.