A solution made by dissolving 150.0 g of an unknown compound in 365.0 mL of benzene to make a solution that has a freezing point 18.6 °C lower than that of pure benzene. Kf for benzene is 5.12 °C/m and the density of benzene is 0.877 g/mL. The solution contains 1.16 moles of the unknown. What is the molar mass of the unknown compound?

Q: Determine the molal concentration of a sugar solution in water that has a freezing point of –2.1°C.…

A: Given information,    Freezing point = –2.1°C    Value of Kf = 1.86°C/m for water

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: A solution made by dissolving 150.0 g of an unknown compound in 370.0 mL of benzene to make a…

A: An unknown compound is dissolved in the benzene to make a solution. The mass of the unknown…

Q: What would be the theoretical freezing point of a solution made by dissolving 10.48 g of NaCl in…

A: Freezing point of solution is less then freezing point of pure solvent

Q: Calculate the freezing point of a solution containing 0.135 mol of a nonionic solute in 2.50 kg of…

A: When a non volatile solute is added to pure solvent then its freezing point decreases If Tf° is…

Q: A solution made by dissolving 150.0 g of an unknown compound in 330.0 mL of benzene to make a…

A: The properties of solution that depend only on the concentration of the solute and is independent of…

Q: 7. s) Consider a 1.717 M solution of propanol (C3H₂OH) dissolved in water at 70 °C. The vapor…

A: Osmotic pressure is related to the molar concentration by the given formula: π = MRTπ is the osmotic…

Q: If 2.51 g of a molecular compound  dissolved in 100.0 g of water produces a solution with a freezing…

A: When a solute is added to a solvent, the freezing point of solvent decreases known as depression in…

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

A: The volume of benzene = 425 mL. Density of benzene = 0.877 g/mL The mass of the solvent =  425 g/mL…

Q: An aqueous solution is prepared by dissolving 72.0 g glucose (180.18 g/mol) in enough water to make…

A: The mixing of certain non-volatile substances also known as antifreeze tends to lower the solvent's…

Q: A solution of a nonelectrolyte solution contains 39.0 g of solute dissolved in 242.0 g of water. The…

A: The ratio of moles of solute to the mass of solvent in kg is known as molarity.

Q: When 32.7 g of alanine (C3H,NO,) are dissolved in 500. g of a certain mystery liquid X, the freezing…

A:

Q: alculate the freezing point of a solution. What is the freezing point of a solution containing 38.92…

A: The colligative properties are those properties of solutions that depend on the number of solute…

Q: 1. A solution containing water (H2O) and ethanol (CH3CH2OH) has an initial mole concentration…

A: The solution is heated to the boiling point of ethanol (78.4 °C). The vapor pressure of water at…

Q: A solution of 750 g of henzene (CH) and 75.0 g of toluene (C,Hg) has a total vapor pressure of 80.9…

A:

Q: Match the following aqueous solutions with the appropriate letter from the column on the right.…

A: Highest particle lowers the freezing point

Q: Calculate the molality of a solution that contains 81.2 g of naphthalene, C10H8 , in 500. mL of…

A: given, the mass of naphthalene = 81.2g the volume of carbon tetrachloride = 500. mL the density of…

Q: if 2.51 g of a molecular compound  dissolved in 100.0 g of water produces a solution with a freezing…

A: Given: 1) Molecular compound weight = WA= 2.51 g 2) Molar mass of compound = mA = M 3) Water weight…

Q: 27. An ethylene glycol solution contains 28.3 g of ethylene glycol, C2H602 in 97.2 mL of water.…

A: This problem is based on Solutions chapter where it is of the subtopic Colligative Properties of…

Q: solution is prepared by dissolving 0.0125 moles of insulin in 1000 mL of water.   Calculate the…

A: The Question is based on the concept of solutions. we have to calculate osmotic pressure of the…

Q: 2.A solution that contains 12.6 g of a nonvolatile nondissociating solute in 400. g of benzene…

A:

Q: An aqueous solution is prepared by dissolving 72.0 g glucose (180.18 g/mol) in enough 1. water to…

A: Number of moles of glucose (solute) is calculated as follows,

Q: 15. What is the freezing point for an aqueous solution of KBr that was made from dissolving 25.0…

A:

Q: A solution of a nonelectrolyte solution contains 39.0 g of solute dissolved in 242.0 g of water. The…

A: Given, The freezing point of the pure water, (T0f)=0.0 0C. The given mass of water, (Wa)=242 g=0.242…

Q: An aqueous solution containing 35.6 gg  of an unknown molecular (non-electrolyte) compound in 150.1…

A: Given, mass of the compound = 35.6 g mass of water = 150.1 g = 0.1501 kg Freezing point of the…

Q: When ammonium chloride (NH4Cl) is dissolved in water, the solution becomes colder.a. Is the…

A:

Q: An aqueous solution is formed by dissolving 2.000 g of Na3PO4 (163.941 g/mol) in enough water to…

A: Given, Mass of Na3PO4 dissolved= 2.000g Molar mass of Na3PO4= 163.941 g/mol Volume of solution= 10ml…

Q: A solution made by dissolving 150.0 g of an unknown compound in 440.0 mL of benzene to make a…

A: Molality ( m ) : - molality is defined as the number of moles of solute present in one Kg of…

Q: b. A solution contains 10.00 g of a non-volatile hydrocarbon in 100.0 g of acetone. Th boiling point…

A: The question is based on the concept of solutions.   Molality is a method of expressing…

Q: A solution made by dissolving 150.0 g of an unknown compound in 320.0 mL of benzene to make a…

A: Density of benzene =  0.877 g/mL Volume of benzene = 320.0 mL Density = Mass / Volume so, Mass of…

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

A: Assuming mass of naphthalene in the mixture is y. Hence mass of pyrene = mass of mixture - mass of…

Q: A solution made by dissolving 150.0 g of an unknown compound in 375.0 mL of benzene to make a…

A:

Q: A 1.09 g sample of substance X is dissolved in 26.8 g of benzene. The freezing point of the solution…

A: The ratio of moles of solute to the mass of the solvent in kg is known as molality.