A particular unknown solid depresses the freezing point of PDB (K; = 7.1°C/molal) by 3.5°C. If you dissolve the same solid in H20 (K; = 1.86°C/molal) to the same final molality as you had it in the PDB, what would the change in freezing point be?

Q: Imagine two solutions with the same concentration and the Normal boiling point same boiling point,…

A: Colligative properties are the properties which depend on the number of atoms or molecules or ions…

Q: The freezing point of ethanol, CH3CH,OH, is -117.300 °C at 1 atmosphere. KAethanol) = 1.99 °C/m In a…

A: Given: Mass of compound (solute) = 12.60 g Mass of ethanol (solvent) = 265.8 g Freezing point of…

Q: The normal freezing point of ethanol (CH3CH2OH) is -117.300 ºC.  In a laboratory experiment,…

A: The freeing point depression is observed on the addition of solute in a solvent, which is a…

Q: 1.60 g of naphthalene (C10H8) is dissolved in 20.0 g of benzene. The freezing point of pure benzene…

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A: Given that, The mass of alanine is 46.1 g.The molar mass of alanine is 89 g/mol.The mass of the…

Q: (a) Differentiate between molarity and molality for a solution. How does a change in temperature…

A:

Q: 10 A 3.40-g sample of a mixture of naphthalene (C, H.) and pyrene (CH) is dissolved in 35.0 g…

A: Given: The mass of the mixture of naphthalene and pyrene = 3.40 g The mass of benzene (solvent) =…

Q: The molal freezing point constant for water is 1.86oC/m.  At what temperature will a mixture of 10.0…

A: Given information: Mass of ionic solid = 10.0 g Mass of solvent = 1.00 kg Molal freezing point…

Q: At 25°C, the vapor pressure of pure benzene is  P1== 0.1252 atm. Suppose 6.40 g of naphthalene,…

A: The Raoult's for non volatile solute can be expressed as,…

Q: Suppose that you add 25.6 g of an unknown molecular compound to 0.250 kg of benzene, which has a Kf…

A:

Q: The freezing point of ethanol, CH3CH,OH, is -117.300 °C at 1 atmosphere. Kgethanol) = 1.99 °C/m In a…

A: Given: The freezing point of pure ethanol is -117.300°C. The freezing point depression constant of…

Q: A patient has a “cholesterol count” of 214. Like manyblood-chemistry measurements, this result is…

A: Molar concentration is the representation of explaining the concentration of solute in a solution.…

Q: What is the freezing and boiling point of an electrolyte solution containing 5.0 grams sodium…

A: You have given the following data - mass of solute, w = 5..0 g Volume of Solute, V = 800 mL = 0.800…

Q: If 0.219 g of a solute is dissolved into 7.832 g of t-butanol (normal freezing point is 25C), and…

A: If 0.219 g of a solute is dissolved into 7.832 g of t-butanol (normal freezing point is 25C), and…

Q: A mass of 1.3 g of an unknown solute is added to 10.7 benzene (Kf=5.12°C kg/mol). The freezing point…

A:

Q: Some ethylene glycol, HOCH2CH2OH, is added to your car’s cooling system along with 5 kg of water. If…

A: Colligative property is the property which depend on number of moles of solute not on nature of…

Q: When 397.g of benzamide C7H7NO are dissolved in 1400.g of a certain mystery liquid X, the freezing…

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

A:

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. A student determines the molar mass of methanol, CH3OH by the same method used in this…

A: Answer: This question is based on the colligative property of the solution. Colligative property of…

Q: The normal freezing point of a certain liquid X is 4.70°C, but when 83.g of benzamide (C7H7NO) is…

A: Colligative properties are the properties which depend on the number of atoms or molecules or ions…

Q: An online study examined the lowering of freezing point when 0.222 g of an unknown molecular solute…

A: Mass of in known compound ,m = 0.222g Let the molar mass of compound be M g/mol. Then, number of…

Q: When 498. mg of a certain molecular compound X are dissolved in 25.0 g of dibenzyl ether…

A: A numerical problem based on properties of liquids. A set of data for depression of freezing point…

Q: A compound of cobalt, carbon, and oxygen contains 28.1% C and 34.5% Co. When 0.147 g of this…

A: The depression in freezing point = freezing point of solvent (cyclohexane) - freezing point of…

Q: The freezing point of water is 0.00 °C at 1 atm. If 18.4 g of calcium chloride are dissolved in…

A: To solve this problem we will use the formula  ∆Tf = i Kf m  Where  ∆Tf = depression in freezing…

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: 15 g of an unknown molecular substance was dissolved in 450 g of water. The resulting solution…

A: The freezing point of a substance is the temperature at which there exists an equlibrium between its…

Q: At 300 K, the vapor pressure of pure benzene (C6H6) is0.1355 atm and the vapor pressure of pure…

A: a) Mass of benzene is given as 50 g and mass of n-hexane is given as 50 g. Molar mass of benzene is…

Q: student determines the molar mass of methanol, CH3OH by the same method used in this experiment.…

A:

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

A:

Q: Camphor, C10H16O, melts at 179.8˚C, it has particularly large freezing point depression constant, Kf…

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Q: 2.00 g of an unknown compound is mixed to form a homogeneous solution with 75.00 g of benzene. This…

A: Answer: 216.72 g/mol

Q: When 34.9 g of benzamide (C,H,NO) are dissolved in 500. g of a certain mystery liquid X, the…

A:

Q: Gases dissolved in water are examples of ideal-dilute solutions, where the gas, of course, is the…

A: Given:Henry's law constant of carbon dioxide in water = a) 0.304 mmHgb) 2.0 atm calculate the…

Q: The vapor pressure of pure toluene (C6H5CH3, MW = 92.14 g/mol) at T = 100.0 °C is pT° = 557.0 torr.…

A: The Raoult's for non volatile solute can be expressed as,                              Where, P0 is…

Q: The freezing point of ethanol, CH3CH₂OH, is -117.300 °C at 1 atmosphere. K(ethanol) = 1.99 °C/m In a…

A: Given:Mass of solute = 10.78 gMass of solvent ethanol = 294.9 gThe solution began to freeze at…

Q: Cholesterol is an important compound in the body, but in excess has been implicated as a cause of…

A: Given data : Mass of cholestrol = 4.82 gms                         Mass of Benzene = 112 gms…

Q: 6. Complete the following table. Expected freezing point °C molality solution Molar Mass of Mass of…

A: The ratio of no. of moles of solute to the mass of solvent in kg is known as molality.

Q: When 98.9 g of glycine (C₂H5NO₂) a are dissolved in 900. g of a certain mystery liquid X, the…

A: Change in the freezing point is a colligative property that depends on the number of solute…

Q: The colligative molality of an unknown aqueous solution is 1.01 m. (For pure water at 20°C: Po =…

A: Answer: When a non-volatile solute is added in the solvent then it causes a decrease in vapor…

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.