Quinine is a natural product extracted from the bark of the cinchona tree, which is native to South America. Quinine is used as an antimalarial agent. When 1.20 g of quinine is dissolved in 25.0 g of cyclohexane, the freezing point of the solution is lowered by 3.07 °C. The freezing point and Kf constant for cyclohexane can be found here. Calculate the molar mass of quinine.cyclohexane C6H12(formula) 20.8 (Kf value C/m) 6.59 (freezing point C)2.92( Kb value C/m) 80.7 (normal boiling point C)

Q: calculate the freezing point of a solution containing 0.600 kg of CHCl3 and 42.0 g of eucalyptol…

A: Freezing point: The temperature at which a liquid turns into a solid. The formula for calculating…

Q: Calculate the freezing point of a solution made by dissolving 1.00 mole of NaCl in 1000. g of H2O.

A: We will use formula of ∆Tf. ∆Tf=Tf°-Tf

Q: Calculate the boiling point of solution when 10 grams of glucose (C6H12O6) is dissolved in 100 g of…

A:

Q: What is the molality of an aqueous solution that is 10.0% ethanol, C2H5OH, by mass?

A:

Q: 9) Adding 1g of benzene, C,H6, to 70g cyclohexane, C6H12, lowers the freezing point of the…

A:

Q: Lanthanum(III) chloride (LaCl3) is a salt that completely dissociates into ions in dilute aqueous…

A:

Q: Calculate the mass of compound (molar mass = 256 g mol-1) to be dissolved in 75 g of benzene to…

A: According to colligative properties, the depression in freezing point is given as - ΔTf = Kf * m…

Q: Assuming ideal behavior, find the freezing point of a solution made by dissolving 13.2 g of ammonium…

A: The given data contains, mass of ammonium phosphate = 13.2 g. mass of water = 45 g.

Q: When 20 g of naphthoic acid (C,H,O.) is dissolved in 50 g of benzene (Kf = 1.72 K kg/mol), a…

A: Given : Mass of solute(naphthoic acid) = 20g = 0.02 kg Mass of solvent( benzene) = 50g = 0.05 kg…

Q: Calculate the freezing and boiling of a solution prepared by dissolving 20.0 grams of Al(NO3)3 in…

A: Freezing point depression can be calculated by the equation,delta T = i x Kf x m Boiling point…

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: If 150 g of ethylene glycol (C 2H 6O 2) is added to 1,000. g of water, what is the freezing point?

A: Kf value of water is 1.86 K Kg mol-1. Depression in freezing point when a non-volatile solute is…

Q: Calculate the molality of a 37.1% (by mass) aqueous solution of phosphoric acid (H3PO4). Calculate…

A: Any compound's concentration gets depicted through its mass percentage (% concentration). Any…

Q: Camphor, C10H16O may be used as a solvent in molar mass determinations by freezing point depression.…

A: 0.556 g of Naphthalene, C10H8  (solute) nsolute = given mass /molar mass = 0.556 g / 128 g/mol =…

Q: Calculate the vapor pressure at 25 °C of an aqueous solution that is 5.50% NaCl by mass. (Assume…

A: Raoult's law states that solvent's partial vapour pressure in solution is equal to vapour pressure…

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

A:

Q: Adding 1g of benzene, C6H6, to 70g cyclohexane, C6H12, lowers the freezing point of the cyclohexane…

A: In a solution, the constituent that is added in smaller quantity is solute, and that is present in…

Q: A solution consisting of 0.278 mol of methylbenzene, C6H5CH3, in 244 g of nitrobenzene, C6H5NO2,…

A:

Q: The enthalpy of solution can be determined from what? A) lattice Energy of the solute B) hydration…

A: The enthalpy of solution is the amount of energy that is absorbed or released when the solute is…

Q: Calculate the freezing-point depression and osmotic pressure in torr at 25°C for an aqueous solution…

A: Given, Molar mass of protein, = 9.0x104 g/mol Density of the protein = 2.9 g/L Density of the…

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

A: Given data: *Kf of water is 1.86 degrees C/m.  The freezing point is calculated by using the…

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: Calculate the freezing point of 1.5 moles of C6H12O6 dissolved in 1kg of water?

A: The molality of the given solution is calculated using equation (1). In this equation m represents…

Q: Camphor is a white solid that melts at 179.50°C. It has been used to determine the molecular weights…

A: The addition of non volatile solute to the solvent resulting in the decrease in freezing point of…

Q: 1.812 grams of an unknown compound is dissolved into 77.7 grams of benzene, an organic solvent with…

A:

Q: Cyclohexanol, C H,,OH, is sometimes used as the solvent in molecular weight determinations by…

A: Weight of benzoic acid = 0.253 gWeight of cyclohexanol = 12.45g = 0.01245 kgLowering in temperature…

Q: The molal freezing point constant for water is 1.86 oC/m. At what temperature will a mixture of 2.00…

A: Given,  The mass of CaCl2 = 2.00 g.                            The mass of water = 25.0 g.…

Q: The freezing point of a solution prepared by dissolving 126.3 mg of caffeine in 10.0 g of camphor is…

A: A numerical problem based on colligative properties, which is to be accomplished.

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: 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: a) What is the freezing point depression caused by adding NaCl to the water? b) The freezing point…

A: Concept introduction: When a non-volatile solute is added to a pure solvent freezing point of the…

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: After the addition of 24 g of ethanol (CH;OH) to 1 kg of water, the freezing point of the solution…

A: ∆Tf = Kf .m  Where  ∆Tf = (T° - Ts)  Where  T° =freezing point of pure water = 273 K  Ts =freezing…

Q: The boiling point of a solution made up of ethylene glycol (C2H6O2) and 50 g of water is 100.85°C.…

A: To Solve this problem first we have to calculate the molality of the Solution then we will calculate…

Q: What is the mole fraction of methanol in this solution?

A: The temperature point at which the vapor pressure of a solution becomes exactly equal to the…

Q: What will be the osmotic pressure exerted by an aqueous solution of 500ml volume at 25 degree…

A: Since it is not given whether 2.33 is concentration or mass or moles. Hence I'm assuming it to be…

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

A:

Q: Lauryl alcohol is obtained from coconut oil and is used to make detergents. A solution containin…

A:

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

A:

Q: How many grams of NaOH is required to prepare 20L of 0.75N solution? What is its molarity, molality,…

A:

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: 9) Adding 1g of benzene, C6H6, to 70g cyclohexane, C6H12, lowers the freezing point of the…

A:

Q: Calculate the mass of compound (molar mass = 256 g mol-1) to be dissolved in 75 g of benzene to…

A: A colligative property is a property that depends on the number of moles of solute, not on the…

Q: A solution consisting of 0.240 mol of methylbenzene, C6H5CH3, in 252 g of nitrobenzene, C6H5NO2,…

A: First, calculate the molality of the solution: Molality = Moles of methylbenzene / Mass of…

Q: What mass of naphthalene must be dissolved in 2.20 ×102 g of benzene to give a solution with a…

A: The required relationship is given below.

Q: A sample of an organic compound (a nonelectrolyte) weighing 1.35 g lowered the freezing point of…

A: The molar mass of the compound is to be calculated

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

A:

Q: If a certain mass of an ionic solute is added to a solvent such as water, which of the following…

A: -25°C

Q: A bottle of phosphoric acid is labeled “85.0% H;PO, by mass; density = 1. 689 g/cm2." Calculate 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.