Lauryl alcohol, C12 H25 OH, is prepared from coconut oil. It is used to make sodium lauryl sulfate, a synthetic detergent. What is the molality of lauryl alcohol in a solution of 12.8 g lauryl alcohol dissolved in 165 g ethanol, СH ОН? Molality = m

Q: What is the molality of 50.0 grams of KBr compound dissolved in 900.0 mL water.

A: We have to find the number of moles of KBr. As , Molality = Moles of soluteMass of the solvent (in…

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

A:

Q: 13. What is the molality of a solution when 12 g of NH3 (17.031 g/mol) is dissolved in 250 g water?…

A: Molality (m) : Number of moles of solute (n) present in 1Kg of solvent (W) is called molality (m)…

Q: What mass of NaNO3 should be dissolved in 45 mL of water so that the resulting solution freezes to…

A:

Q: Consider the solubilities of a particular solute at two different temperatures. Temperature ("C)…

A: Solubility is defined as mass of solute that could be dissolved in a solvent at a particular…

Q: Calculate the molality of alum and the molality of the cream of tartar in the solution of mordant.…

A: Given: mass of Alum = 2 g mass of cream of tartar = 1 g Volume of water = 100 mL molar mass of Alum…

Q: 38. At 20°C, a 2.55 M aqueous solution of ammonium chloride has a density of 1.0544 g/mL. What is…

A: The given information is as follows:The molarity of the ammonium chloride solution = The density of…

Q: A 0.598 M aqueous solution of acetone ( acetone mw= 58.0 amu) is prepared by dissolving acetone in…

A: Given,Molarity of acetone = 0.598M.Volume of solution = 75.0mL = 0.075L.The moles of acetone can be…

Q: The freezing point of benzene, C6H6, is 5.500 °C at 1 atmosphere. Kf(benzene) = 5.12 °C/m In a…

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Q: A student dissolves 18.g of glucose C6H12O6 in 275.mL of a solvent with a density of 1.16/gmL. The…

A: We have to calculate the Molarity as well as molality of solution

Q: Calculate the molality of a solution that contains 70g naphthalene C10H8 in 100 g of water. The…

A: Given :-  Mass of naphthalene = 70 g  Mass of water = 100 g  To calculate :-  Molality of solution

Q: Calculate the molality of a solution formed by adding 2.60 g NH,Cl to 19.2 g of water.

A: Molality is a method of expression concentration. It is denoted by  m. molality, m =moles of…

Q: A solution of LiI in water has XLiI= 0.0600. What is the molality?

A: Given,mole fraction of a solution ( XLiI ) = 0.0600

Q: An aqueous solution of HNO3 was prepared having a molal concentration of 6.29. (Atomic weights: H=1…

A: The answer for part (a) is given below. Kindly repost the other subparts as separate question Given:…

Q: Antifreeze is composed mainly of ethylene glycol (C2H6O2, d = 1.11 g/cm3). It is added to a car…

A: The relationship between depression in freezing point (∆Tf) and molality of solition is  ∆f = kf ×…

Q: A beverage contains tartaric acid, H2C4H4O6, a substance obtained from grapes during wine making. If…

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Q: The freezing point of water, H₂O, is 0.000 °C at 1 atmosphere. Kf(water) = 1.86 °C/m In a laboratory…

A:

Q: At 50°C, the solubility of KCL in water is 42.6 g in 100 g water. What is the molality of KCL in…

A: Here we are required to find the molality of KCl solution

Q: A student dissolves 19. g of glucose (C6H₁206) in 350. mL of a solvent with a density of 0.98 g/mL.…

A: Mass of solute (glucose) = 19. gDensity = 0.98 g/mLVolume of solvent = 350. mL = 0.35 LMolarity =…

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: An aqueous solution containing 35.6 gg  of an unknown molecular (non-electrolyte) compound in 150.1…

A: Given, mass of the compound = 35.6 g mass of water = 150.1 g = 0.1501 kg Freezing point of the…

Q: freezing

A: As we know that,  ∆Tf = Kf × m Where, m = molality of the solution.  From the above equation, we get…

Q: The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kf=20.0. 0.140 g of an unknown…

A:

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: Calculate the molality of a solution prepared by dissolving 50.0 g of sodium hydroxide (NaOH) in 555…

A: 50.0 g of NaOH dissolved in 555 g of water.

Q: At 70 °C, the solubility of an unknown solute is 65.7 g/100.0 g of water. What mass of the solute…

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Q: A solution of KCl in water has Xkcl= .0700. What is the molality?

A: A KCl solution consists of KCl salt as the solute and water as the solvent. Mole fraction of any…

Q: What is the molality of a solution composed of 3.25 g methanol (CH3OH) and 250 mL of water?

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

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Q: An aqueous potassium chloride, KCl, solution is made by dissolving 0.305 mol KCl in 575.0 g of…

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Q: When 4.13 g of a certain molecular compound X are dissolved in 35. g of cyclohexane (C6H₁2), the…

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Q: At 55.0 ∘C∘C, what is the vapor pressure of a solution prepared by dissolving 75.8 g of LiF in 247 g…

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Q: An aqueous solution of 1.00 M ammonia (NH3) has a density of 0.900 g/mL. What is its concentration…

A: Aqueous 1 M ammonia solution has a density of 0.9 g/ml. To calculate molality, moles of solute and…

Q: An aqueous potassium hydroxide (KOH) solution is 14.65% KOH by mass and has a density of 1.10 g/mL.…

A: The concentration of the aqueous potassium hydroxide solution = The mass of solution = The density…

Q: Your pure water boils at 100.00 C. You add some sugar into it and now it boils at 101.20C. What is…

A: Given,  Boiling point of pure water, Tb° = 100.00 °C  Boiling point of solution, Tb = 101.20 °C  Kb…

Q: What volume of ethylene glycol (C2H5 O2), a nonelectolyte, must be added to 18.0L water to produce…

A: Given that:        Volume of solvent (H2O) = 18.0 L         density of ethylene Glycol = 1.11g/cm3…

Q: What is the osmotic pressure of a solution at 22.5 oC when 3.5462 g of CoCl 2 (MM = 129.839 g/mol)…

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Q: The boiling point of ethanol, CH3 CH₂OH, is 78.500 °C at 1 atmosphere. Kb (ethanol) = 1.22 °C/m In a…

A: The colligative properties are those properties of solutions that depend on the number of solute…

Q: A solid consists of a mixture of NaNO3 and Mg(NO3)2. When 6.50 g of the solid is dissolved in 50.0 g…

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Q: n öf 2.50Ug UI BHT II| 100!0 What is the molecular weight of BHT?

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

Q: What is the molality of the soluton when a 27g of Sucrose (C6H12O6) is dissolved in 320g of water.

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.