An antifreeze solution contains 1.00 kg of ethylene glycol (C2H6O2; molar mass = 62.07 g/mol) in 1.25 kg of water. Determine: (a) the molal concentration (m) of ethylene glycol; (b) the freezing point of solution, and (c) the boiling point of solution. (The freezing point depression constant, Kf = 1.86oC/m; the boiling point elevation constant, Kb = 0.512oC/m, where m = molal concentration).

Q: Calculate the molality of a solution produced by dissolving 15.2 g of calcium chloride in 345 g of…

A: Definition of Molality: It is defined as number of moles of solute dissolve in 1 kg of solvent .…

Q: Calculate the vapor pressure at 85.0°C of a solution prepared by dissolving 0.800 mol of liquid…

A: Mole of dibromoethane = 0.800 mol Vapour pressure of pure dibromoethane = PA =  127 torr Mole of…

Q: When 50.5 g of urea (CH,N,0) are dissolved in 1200. g of a certain mystery liquid X. the freezing…

A: Weight of urea=50.5 g  Weight of liquid X=1200g = 1.2 kg (1Kg = 1000 gm)

Q: The mole fraction of sodium chloride, NaCl, in a saturated aqueous solution is 0,220. (a)  What is…

A: As per our guidelines, we can solve only one question at a time. Please post other questions as next…

Q: The Henry's Law constant of methyl bromide, CH3Br, is k=0.159 mol*(L*atm) at 25 degree celcius. What…

A:

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 solution can be calculated as follows:

Q: How many moles of sugar must be dissolved in 2.00 liters of pure water to raise its boiling point to…

A: Given  Volume of solution                 = 2 Liter  Elevation in Boiling point       = 102 ℃  Molal…

Q: When 904. mg of a certain molecular compound X are dissolved in 60.0 g of benzonitrile (CHCN), the…

A:

Q: Ethylene glycol (C₂H₆O₂) is used as an additive to the water in your automobile to lower its…

A: Given Kf for water is 1.86 °C･kg/mol Freezing point of ethylene glycol  =  -3.60 °C Freezing point…

Q: The density of an aqueous solution containing 20.0 percent of ethanol by mass is 0.986 g/mL. (a)…

A: The molality of the solution may be defined as the number of moles of solute present in 1 Kg of the…

Q: An aqueous solution containing 36.8 g of an unknown molecular (non-electrolyte) compound in 143.2 g…

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

Q: The Henry’s law constant (kH) for O2 in water at 20°C is 1.28 x 10-3 mol/L⋅atm. (a) How many grams…

A: Given: The Henry's law constant for water = 1.28×10-3 mol/ L.atm Volume of water= 2.50L

Q: (a) Explain the following:(i) Henry’s law about dissolution of a gas in a liquid.{ii) Boiling point…

A: Since your question has multiple parts, we will solve first question for you. If you want remaining…

Q: The density of an aqueous solution containing 20.0 percent of ethanol by mass is 0.986 g/mL. (a)…

A:

Q: The normal freezing point of cyclohexane is 6.50 °C. A solution is prepared by dissolving 148.6 mg…

A: Given,  Normal freezing point of cyclohexane = T0f = 6.50 °C Mass of unknown nonelectrolyte (solute)…

Q: When 0 279 g of a molecular compound, beazonc acid, was dissolved in 430 g of benzene, the freezing…

A: The depression in the freezing point is the colligative property and it is defined as the drop in…

Q: What would be the vapor pressure of water at 85°C above a solution made by dissolving 42.71 g of…

A: When  a non volatile solute adds to a volatile solvent , the vapour pressure of solvent lowers.…

Q: The density of acetonitrile (CH3CN) is 0.786 g/mL and the density of methanol (CH3OH) is 0.791 g/mL.…

A: Mass of acetonitrile is calculated from its density and given volume.

Q: [1] A solution contains 52.0 g of mannitol, C6H14O6, dissolved in 500 g of water at 30 °C. The vapor…

A:

Q: A 13.1 g sample of a new chemical is dissolved in 102.4 g of H20. The freezing point of the…

A: The difference between freezing point of Pure solvent and it's solution is called depression in…

Q: At 30 °C, a solution is prepared by mixing 22.8 g Na2SO4 with 175.0 g water. The vapor pressure of…

A:

Q: (a)Determine the molality of a 10% w/w solution if the molecular weight of the solute is 120 g/mol.…

A: All the necessary calculations have been done in the following step.

Q: A solution contains 0.130 mol of isopropanol (C3H7OH) dissolved in 3.620 mol of water. (a) What is…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: Calculate the vapor pressure at 85.0°C of a solution prepared by dissolving 0.800 mol of liquid…

A:

Q: The density of an aqueous solution containing 20.0 percent of ethanol (C2H5OH) by mass is 0.966…

A: Given that:  Density of ethanol = 0.966g/mL  Mass percent of ethanol = 20.0%  20.0% mass ethanol…

Q: (a) Differentiate between molarity and molality in a solution. What is the effect of temperature…

A: a) The molarity is the concentration term that can be expressed as the mathematical ratio between…

Q: Seawater is an aqueous solution of NaCl, with concentration of 3.5mass % and density of 1.0250 g/mL,…

A: Solution -

Q: A solution was prepared by dissolving solute T in 120 g benzene. The freezing point of this solution…

A: Given : Mass of solvent i.e benzene = 120 g = 0.120 Kg                                     (since 1…

Q: .9720 M aqueous solution of NaCl has a density of 1.03625g/cm^3 at 25 C, Calculate the molality of…

A: As per our guideline we can solve only one question at a time, please post other questions as next…

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

A:

Q: Osmotic pressure can be very useful for estimating the molecular weights of macromolecules for whom…

A: For part (a): The mass of protein = 1.364 g The molar mass of the protein = 1.78 × 104 g/mol The…

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: 15.2 g of camphor dissolved in naphthalene lower the freezing temperature of naphthalene from 80.0…

A: Given: Mass of camphor=15.2 g Molar mass of camphor=152 g/mol Lowered freezing point of…

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

A:

Q: Explain the following :(i) Henry’s law about dissolution of a gas in a liquid(ii) Boiling point…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: 0.263 g of an organic compound (a non-electrolyte) is dissolved in 20.0 g of cyclohexane (C6H12) and…

A: given that mass of cyclohexane  is (wB) = 0.263 grams  freezing point of Pure cyclohexane (solvent)…

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: 3) A student weighed 1.75 g of an unknown molecular compound and dissolved it in 15 ml of water. The…

A:

Q: Calculate the vapor pressure above a solution prepared by dissolving 2.00 g of aspirin (C9H8O4) in…

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: A) The vapor pressure of diethyl ether (ether) is 463.57 mm Hg at 25 °C. A nonvolatile,…

A: Here multipart  question given A and B

Q: What is the molality of a solution made by mixing 4.5 grams of KNO3 [ molar mass ( 101.1032 g = 1…

A: Molarity = moles of soluteVolume of solution (l)Solute is KNO3moles ofKNO3 = given weight (g)Molar…

Q: What is the mole fraction of acetone, C3H6O, in the vapor phase from a solution consisting of a…

A:

Q: Pentane (C;H12) and hexane (C,H14) form ideal solution. At 25°C the vapor pressure of pentane and…

A: According to Raoult's law the partial pressure of a solution is equal to the product of the mole…

Q: Pentane (C5H12) and hexane (C6H14) combine to form an ideal solution. At 25°C the vapor pressures of…

A: Introduction to Raoult's law Raoult's law is a physical chemistry relationship that has…

Q: (a) A 2.300 molal solution of KCl is prepared. How many grams of KCl are present in a sample…

A: a. Given:Molality of the solution(m) = 2.300 m = 2.300 mol/kg                               (4…

Q: acid, CH3COOH, is 1.0187 g/mL. What is (a) the molarity? (b) the molality? (c) the mole fraction of…

A: Molarity is the moles of solute in 1 L of solution. Molarity=moles of solutevolume of solution (L)…

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.