A 1 M aqueous solution was made using 9.52 g of magnesium chloride. The density of the solution was determined to be 1.05g/cm3 , and the experimental freezing point was –5.34°C. Calculate the experimental van’t Hoff factor for magnesium chloride?

Q: A solution is prepared by dissolving 4.39 g of ordinary sugar (sucrose, C12H011, molecular weight =…

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Q: Is your answer in units of g/mol and not kg/mol? Did you subtract the new freezing point from the…

A: Calculate molecular mass of unknown compound

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

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

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Q: 1.20 mol of a nonvolatile, nonelectrolyte hydrocarbon is dissolved in 1,115.7 g of benzene. What is…

A: Elevation in Boiling point is the rise in the boiling point of the solution on addition of solute to…

Q: (a) Using the data from the table, determine the molality of the deicer solution. molality =  m…

A: Given  mass of CaCl2 = 9.57 g  Volume of water = 58.6 mL  = 58.6 g Convert grams to kg using…

Q: In the lab, a student needs to determine the van't Hoff factor for a deicer in water. Using the same…

A: The depression in freezing point is given by  depression in freezing point = i X Kf X m  where i =…

Q: Compute the freezing point and boiling point of the aqueous solution.   a) Which aqueous solution…

A: Given data: i. 0.050 m CaCl2 ii. 0.015 m NaCl iii. 0.10 m HCl iv. 0.050 m CH3COOH v. 0.20 m…

Q: A solution was made by mixing 6.25 g of heptane (C7H63, molar mass = 100.21 g/mol) with 46.2 g of…

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Q: 1. Which aqueous solution would have the lowest vapor pressure at 250⁰C? a. 1M NaCl c. 1M glucose…

A: Note: As per our guidelines, we are supposed to answer only one question. Please repost the other…

Q: A solution is prepared by dissolving 4.58 g of ordinary sugar (sucrose, C12H22011, molecular weight…

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Q: Which of the following solutions is likely to have the highest boiling point assuming, for…

A: Elevation in Boiling point is a colligative property i.e. it depends on number of particles not on…

Q: Use the following information to calculate the molar mass of the unknown Mass of unknown solute =…

A: The relation between depression in freezing point and molality of a solution is given as follows;…

Q: Identify the molality of a solution prepared by dissolving 28.60g of glucose into 250 g of water.…

A: Mass of glucose = 28.60 g  Mass of water  = 250 g  1000 g = 1 Kg 250 g = 0.250 Kg  Molality = ?

Q: In the lab, a student follows the following steps to determine the freezing point and molality of a…

A: (a) Given: Mass of deicer = 6.56 g Volume of water = 58.6 mL  (As, mass (g) = Volume (mL)Density…

Q: A student made a solution by mixing 28.20 g of an unknown substance with 500.0 g of benzene (C6H63,…

A: Depression in freezing point (∆Tf) solvent will calculated as:-∆Tf= kf×W2W1×M2Where∆Tf=Depression in…

Q: True or False At 25C, a solution of 40% methanol and 60% toluene will have a vapor pressure higher…

A: Colligative properties are those properties which depends on amount of solute and doesn't depends on…

Q: aqueous solution containing 34.9 g of an unknown molecular (non-electrolyte) compound in 153.7 g of…

A: Weight of non - electrolyte = 34.9 gm Weight of water = 153.7 gm = 0.1537 kg (1kg = 1000g) Freezing…

Q: A certain amount of the Butylated hydroxvanisole (BHA) was dissolved in 21.0 g of trichloromethane…

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Q: Ethylene glycol, HOCH2CH2OH, is a common automobile antifreeze. It is water soluble and fairly…

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Q: At 40°C, the vapor pressure of pure carbon tetrachloride(CCl4) is 0.293 atm and the vapor pressure…

A: nCCl4 = 30.0 g ×1 mol153.8g           =0.195 mol

Q: When 87.0g of glycine C2H5NO2 are dissolved in 850.g of a certain mystery liquid X, the freezing…

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Q: Assume that you were assigned BaCl2 in lab. The water in your test tube weighed 24.823 g. Following…

A: 3

Q: he molar mass of unknown molecular compound is determined using freezing point depression. The…

A: Kf = molal depression constant

Q: When 84.8 g of alanine C3H7NO2 are dissolved in 1200. g of a certain mystery liquid X, the freezing…

A: Answer: Freezing point depression of a solution containing non-volatile solute is:…

Q: A solution was made by mixing 6.25 g of heptane (C7H63, molar mass = 100.21 g/mol) with 46.2 g of…

A: Freezing-point depression is the decrease of the freezing point of a solvent on the addition of a…

Q: you were assigned BaCl2 in lab. The water in your test tube weighed 24.802 g. Following the…

A: Mass of solvent = 24.802 g        Since, 1 kg = 1000 gMass of solvent = 24.802 g × 1 kg1000 gMass of…

Q: Ethylene glycol, HOCH2CH2OH, is a common automobile antifreeze. It is water soluble and fairly…

A: Given information, Mass of substance = 652 g Mass of solvent (water) = 3676 g = 3.676 Kg (As 1 Kg =…

Q: Which solution has the lowest freezing point?  A. Pure water B. 1.5 m CaCl2 C. 2.0 m Sucrose…

A: Depression in Freezing Point = i  x  Kf x m i=> van't Hoff factor kf => Molal depression…

Q: Calculate the freezing point and boiling point of each aqueous solution, assuming complete…

A: Given: Molarity of K2S solution = 0.100 m Mass of solute dissolved = 21.5 g Mass of water = 4.50 x…

Q: Barium hydroxide weighs 10 g having 171.34 g/mol, what is its van't hoff factor? what is its chamge…

A: Given data: The mass of barium hydroxide is 10 g. The molar mass of barium hydroxide is 171.34…

Q: A student prepares a solution by dissolving 2.09 g of para-dichlorobenzene (C6H4Cl2,= 147.0 g/mol)…

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Q: At a certain temperature the vapor pressure of pure acetone ((CH,) CO) is measured to be 435. mmHg.…

A: Solution is made up of solute and solvent.Solute is present in small amount and solvent is present…

Q: A student prepares a solution by dissolving 1.88 g of para-dichlorobenzene (C6H4Cl2, = 147.0 g/mol)…

A: Given; The given mass of C6H4Cl2, (Wb) = 1.88 g. The molar mass of C6H4Cl2, (Mb) = 147.0 g/mol. The…

Q: In the lab, a student follows the following steps to determine the freezing point and molality of a…

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Q: A student prepared a sugar solution containing 1.4382 g of sugar (C12H22011, 342.29 g/mol) in 5.00…

A: Depression in freezing point (∆Tf) = Kf x m where, Kf = cryoscopic constant m = molality

Q: Assuming 100% dissociation, calculate the freezing point (?f) and boiling point (?b) of 2.30 ?…

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Q: Calculate the freezing point and boiling point of a 0.55 m CH3OH in water. (Kf = 1.8oCkg/mol; kb=…

A: We have given that Kf = 1.8oCkg/mol   kb= 0.51 oC kg/mol molality of CH3OH =0.55m

Q: Which aqueous solution will have the lowest freezing point? ΔTf = Kf m i   a. 0.05 m KBr   b.…

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Q: Select the solution that you would expect to have the largest effect on the boiling point assuming…

A: The boiling point of a solution is always higher than that of the boiling point of the pure solvent.…

Q: Why does the concept of colligative properties apply only to dilute solutions? Eugenol is the active…

A: 1. Answer. : Colligative properties are properties of solutions that depend on the number of…

Q: When 116.g of glycine C2H5NO2 are dissolved in 1050.g of a certain mystery liquid X, the freezing…

A: Answer:- this question is answered by using the simple concept of depression in freezing point .…

Q: Determine the freezing point of a solution that contains 65.1 g of naphthalene (C10H8, molar mass =…

A: Given: Mass of Napthalene = 65.1g            Volume of benzene = 734 mL            Density of…

Q: Use the MEASURED Van't Hoff factors in the table below to calculate each colligative property: a.…

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Q: Ethylene glycol, HOCH2CH20H, is a common automobile antifreeze. It is water soluble and fairly…

A: Here ethylene glycol, HOCH2CH2OH is the solute, and water is the solvent. Given the mass of the…

Q: Which aqueous solution will have the lowest freezing point? ΔTf = Kf m i   a. 0.1 m NaNO3   b.…

A: The formula used to determine the freezing point of the aqueous solutions is shown below, Tf°-Tf =…

Q: Which aqueous solution has a boiling point closer to its pre-dicted value, 0.050 m NaF or 0.50 m…

A: Solution is made up of two components which are solute and solvent. Solute is present in the minor…

Q: Trial 1 Freezing temperature of deionized water 0.02 ° C Deicer used (chemical formula) KCl Mass of…

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Q: Q3. Calculate the freezing point of the solution; if 40.0 g NaCl is dissolved in 225 g water. (Kf…

A: The temperature at which any solution solidify is called the freezing point of the solution. When 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.