In ice-cream making, the ingredients are kept below 0.0oC in an ice-salt bath. (a) Assuming that NaCl dissolves completely and forms an ideal solution, what mass of it is needed to lower the melting point of 5.5 kg of ice to -5.0oC? (b) Given the same assumptions as in part (a), what mass of CaCl2 is needed?

Q: The lattice energy of KCI is -690. kJ/mol, and the enthalpy of hydration is -707 kJ/mol. (Recall…

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Q: What is the relationship between these two structures? and O completely different molecules that are…

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Q: A solution of 5.0 g of benzoic acid (C6H5COOH) in 100.0 g of carbon tetrachloride has a boiling…

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Q: When 46.1 g of alanine (C₂H,NO₂) are dissolved in 550. g of a certain mystery liquid X, the freezing…

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Q: At 289 k the vapor pressure of pure pentane (C5H₁2) is 0.428 atm and the vapor pressure of pure…

A: The question is based on the concept of solutions.we need to calculate vapour pressure of the…

Q: Suppose you prepare a solution by dissolving 0.100 moles of naphthalene in 200.0 grams of carbon…

A:

Q: Five grams of an organic solid is dissolved in 107.0 g of benzene. The boiling temperature of this…

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Q: (a) Use the following data to calculate the enthalpy of hydration for calcium chloride and calcium…

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Q: A solution of 5.0 g of benzoic acid (C₆H₅COOH) in 100.0 g of carbon tetrachloride has a boiling…

A: Given Data: Mass of benzoic acid = 5.0 g. Mass of carbon tetrachloride = 100.0 g. Boiling point of…

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 osmotic pressure of blood at the normal body temperature of 37oC is 7.65 atm. What molar…

A: Given data: Osmotic pressure = 7.65atm Gas constant = 0.0821 L.atm/k.mol Temperature = 370C

Q: At 22.9oC and under 0.915 atm of O2 (g) the solubility of O2 (g) in water is 1.35x10-3 M. What is…

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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: When 20.4 g of urea (CH₂N₂O) are dissolved in 500. g of a certain mystery liquid X, the freezing…

A: First of all we calculate the Kf of mystery liquid X using urea.For this purpose we use Following…

Q: A nonelectrolyte, is one of the compounds responsible for the flavor of cloves. A 231 mg sample of…

A: The boiling point of a liquid is the temperature at which its vapour pressure becomes equal to the…

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

A: The freezing-point depression is given by

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: 1.826 g of an unknown substance dissolved in 28.640 g of glacial acetic acid (Kf =3.90 ⁰C/m) lowers…

A:

Q: A solution of 0.278 m (molal) of CaCl2 in water freezes at -1.33 oC. (a) What is the expected…

A: Given,  Molality of CaCl2 = 0.278 m  Freezing point of solution = Tf = -1.33 0C Molal depression in…

Q: Calculate the freezing point of a solution prepared by dissolving 3.17 g Ca(ClO3)2 in 452.6 g H2O.

A: When a solute added to solvent it's freezing point decrease

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

A: Formula used  Xsolvent =  Psolution/ Psolvent  where Xsolvent = mole fraction of solvent  Psolution…

Q: A solution containing 6.314 g of a non-volatile organic solute dissolved in 100.00 g of toluene…

A: Answer: When a non-volatile is dissolved in a solvent it causes an elevation in the boiling point of…

Q: 3. The density of acetonitrile, CH,CN, is 0.786 g/mL, and the density of methanol, CH,OH, is 0.791…

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Q: 5. Calculate the percent by mass of the solute in each of the following aqueous solutions: (a) 5.50…

A: As per our company guidelines we are supposed to answer only one question. Kindly repost other…

Q: (a) Use the following data to calculate the enthalpy of hydration for calcium chloride and calcium…

A: Answer:Relation between all 3 enthapy values is:

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

A: When a solute is added in pure solvent then its vapor pressures gets lowered. It is referred as a…

Q: Eugenol is one of the compounds responsible for the flavor of cloves. A 111 mg sample of eugenol was…

A: The increase in boiling point (∆Tb) of a solution is related to molality (m) of the solution by the…

Q: wo organic solvents (A and B) form an ideal solution when they mixed at 25 °C. The vapor pressures…

A: P0A (Vapor pressure of pure A) = 500 mm PA0 (Vapor pressure of pure A) = 180 mm since density = mass…

Q: When KNO3 is dissolved in water, the resulting solution is significantly colder than the water was…

A: a)

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

A: Formula used  Xsolvent =  Psolution/ Psolvent  where Xsolvent = mole fraction of solvent  Psolution…

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: Please provide detailed solution and give the explanation of the concept..

A: The freezing point of a solution is lower than that of the pure solvent. This is known as freezing…

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: 2. Calculate the molality of each of the following solutions: (a) 0.710 kg of sodium carbonate…

A: The molality of the solution can be determined by using the formula given below as;…

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

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Q: When 58.6 g of alanine (C₂H-NO₂) are dissolved in 1250. g of a certain mystery liquid X, the…

A: Given that, The mass of alanine is 58.6 g.The molar mass of alanine is 89 g/mol.The mass of the…

Q: B) If the temperature at point (a) on the above graph is 0.1 °C, and the temperature at point (b) is…

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

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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: 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: Calculate the van't Hoff factor for iron(III) chloride

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Q: 1. . NaCl is dissolved in water. Which of the following statements is incorrect? (a) Boiling point…

A: 1. (d) The solution will boil at 100 °C as NaOH is a volatile solute. 2. b) 1M 3. a) Osmosis.

Q: 3. What is the vapor pressure at 25.0 °C of a solution composed of 42.71 g of naphthalene (a…

A: Given :  Temperature = 25.0 ° C  Mass of naphthalene = 42.71 gm  Molar mass of naphthalene = 128…

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.