A 12.7 g substance was dissolved in 2.00 g of solvent. The molar mass of the unknown substance is 169.7 g/mol. Calculate the freezing point depression. Kfof the substance = 6.0 K kg/mol.

Q: Calculate the freezing point of a solution containing 50.0 g pf NaCI in 5000mL of water. Kf for…

A: Given in the question, Mass of solvent = 5000g = 5 kg Mass of solute = 50g Molar Mass of solute =…

Q: The molal freezing point depression constant K = 3.50 °C-kg-mol X, the solution freezes at -8.0 °C.…

A: Consider the given information as follows;

Q: Now a solution is prepared by dissolving solid FeCl3 ( molar mass = 162.2 g/mol)in water. If the…

A: Given that:                 Mass percentage = 26.0 %                 Density of solution = 1.25 g/mL…

Q: A researcher prepares a new compound and uses freezing point depression measurements to determine…

A:

Q: Suppose that you add 27.6 g of an unknown molecular compound to 0.250 kg of benzene, which has a…

A:

Q: Suppose that you add 24.3 g of an unknown molecular compound to 0.250 kg of benzene, which has a…

A: Given, mass of unknown molecular compound=24.3gm mass of benzene=0.250 Kg Kf of Benzene=5.12°C/m…

Q: A researcher prepares a new compound and uses freezing point depression measurements to determine…

A: Given Mass of compound = 1.538 g mass of cyclohexane = 75 g  freezing point of the solution = 2.16°C…

Q: Determine the freezing point of an aqueous solution containing 2.9 kg of glucose, 180.16 g/mol)…

A: Given : Mass of water = 6.5 Kg  And mass of glucose = 2.9 Kg = 2900 g…

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: T OR F The boiling and freezing temperature of a liquid is affected by the amount of solute added…

A: The boiling point is the temperature at which the vapor pressure of a liquid equals the external…

Q: When 0.279 g of a molecular compound, benzoic acid, was dissolved in 43.0 g of benzene, the freezing…

A: Depression in freezing point :-  When a nonvolatile solute is added to pure solvent then its…

Q: When 32.4 g of a certain molecular compound X are dissolved in 65.0 g of benzonitrile (C,H,CN), the…

A: we have to calculate the molar mass of X

Q: 117.9 g of non-volatile ethylene glycol (62.07 g mol-¹) is added to 314 g of water at room…

A:

Q: Assuming 100% dissociation in aqueous solution, calculate the freezing point of a solution made by…

A: It is given that there is 100 % dissociation of NaCl in the solution. Mass of NaCl = 16.94 g The…

Q: dissolving 4.555 g of ZnSO 4 in 150.0 g of water? The freezing point constant of water is 1.86…

A: We have to calculate the decrease in freezing point of the guven solution

Q: A 0.058 g sample of a unknown substance was dissolved in 2.635 g of benzene, C6H6. The molality of…

A: Given: The given mass of unknown substance, (m1)= 0.058 g. The given mass of benzene, (m2)= 2.635 g.…

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: A chemist is given a white solid that is suspected of being pure cocaine. When 1.22 g of the solid…

A:

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

A:

Q: A 0.461g sample of an unknown molecular solute is dissolved in 10.0g of water. The freezing point of…

A: given,mass of sample of an unknown solute=0.461 gmass of water=10.0 gfreezing point of the solution…

Q: What would be the theoretical freezing point of a solution made by dissolving 5.551 g of CrSO 4 in…

A: Depression of freezing point is a colligative property which depends upon the concentration of…

Q: A 7.08 g sample of an ionic compound XCI2 is dissolved in 383 grams of a solvent. The freezing point…

A: The molecular weight of the solute can be calculated by using the colligative properties, depression…

Q: A certain substance X melts at a temperature of 7.4 °C. But if a 350. g sample of X is prepared with…

A: To calculate the molal freezing point depression constant Kƒ of substance X, we first need to…

Q: When 2.6 g of unknown solute is dissolved in 28 g of water, the freezing-point depression is 2.7°C,…

A:

Q: When 2.06 g of a certain molecular compound X are dissolved in 90. g of benzene (CH), the freezing…

A: mass of solute = 2.06 g mass of solvent = 90.0 g Solvent = benzene Freezing point = 3.5 oC

Q: 6.50

A: Dear student I have given answer to your question in the image format.

Q: Highways are salted to reduce ice on roads. What is the freezing point when 2 samples of 125 g NaCl…

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

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. FREEZING POINT DEPRESSION Kf (*C/m) of water 1.86 Freezing Point of Water, 0.00 °C SOLVENT 100.0…

A:

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

A:

Q: When 126. g of glycine (C₂H₂NO₂) are dissolved in 1450. g of a certain mystery liquid X, the…

A: In this question, we have to find out the van't hoff factor for iron (III) chloride in X The…

Q: Calculate the mass of NaCl (molar mass = 58.5 g mol-1) to be dissolved in 37.2 g of water to lower…

A: To calculate:  the mass of NaCl to be dissolved in 37.2 g of water to lower the freezing point by…

Q: Select the solute that will cause the largest freezing-point depression when dissolved in water. a.…

A: The depression in the freezing point is caused when a non-volatile solute is added to the solution.…

Q: When 168 mg of a certain molecular compound X are dissolved in 25.0 g of cyclohexane, the freezing…

A: Solution -

Q: The addition of 0.125 g of an unknown, non-ionic compound to 100 g of cyclohexane lowered the…

A: The lowering in freezing point is given by ( for non ionic compounds)  lowering in freezing point =…

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

A:

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: When 236. mg of a certain molecular compound X are dissolved in 40.0 g of benzonitrile (C,H,CN), the…

A:

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: When a 22.5 g sample of an unknown compound is dissolved in 350.0 g of benzene (C6H6), the freezing…

A:

Q: An unknown compound is soluble in benzene (d = 0.877g/mL). When 1.00g of the unknown compound is…

A:

Q: When 225. g of alanine (C,H,NO₂) a are dissolved in 1100. g of a certain mystery liquid X, the…

A: Answer: When a non-volatile solute is dissolved in a solvent then its freezing point decreases which…

Q: 17.55 g of an unknown compound decreased the freezing point of 138 g of benzene (Kf= 5.12 ∘C  /m) by…

A: Detail mathematical calculation is shown below

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: 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…

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.