Sodium hydroxide is a common ingredient in drain cleaners such as Drano. The mole fraction of sodium hydroxide in a saturated aqueous solution is 0.310. What is the molality of the solution?

Q: What is the molality of a solution made by dissolving 12.3 grams of LiCl in 380 grams of water?…

A: Given: Mass of LiCl = 12.3 g. And mass of water i.e. solvent = 380 g = 0.380 Kg…

Q: Why do some physical properties of solutions depend only on the concentration of the solute and not…

A: The dilute solutions have the physical properties based on number of particles called colligative…

Q: What is the molality of a solution made by dissolving 46.7 grams of NH 4Br in 680 grams of water?

A: Given,

Q: A solution contains 0.154 mol NaCl and 0.957 mol H,0. Calculate the vapor pressure of the solution…

A: The given problem is based on the relative lowering in vapour pressure which is explained on the…

Q: Calculate the molality of a 0.410 molar aqueous glucose solution whose density is 1.15 g/mol

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Q: What is the molality of a solution prepared by dissolving 15.1 g of potassium nitrate in 250. g of…

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

A: Concept introduction: Molarity: Number of moles of solute dissolved in per liter of solution.…

Q: You want to prepare an aqueous solution of ethylene glycol, in which the mole fraction of solute is…

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Q: The vapor pressure of an aqueous solution is found to be 19.4 mmHg at 25 °C. What is the mole…

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Q: what is the molality of the bleach? what is the mole fraction of NaOCl in the bleach

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Q: Calculate the molality of a solution containing 289. g of HCl in 857. g of HO. Use the correct…

A: The mass of HCl (solute) is 289. g.The mass of HO (solvent) is 857 g (0.857 kg).To find the molality…

Q: What is the difference between a solution and a colloidal suspension? Give examples of each, and…

A: There are various differences between a solution and a colloidal suspension and due to the below…

Q: A 276 mL aqueous solution containing 0.400 g of an unknown polymer has an osmotic pressure of 26.9…

A: The osmotic pressure is given by  Osmotic pressure = i X CRT where i = Van't Hoff factor = number of…

Q: A solution contains 0.0653 g of a compound in 8.31 g of ethanol. The molality of the solution is…

A: Molality and mole are given by,

Q: Suppose that 98.0g of a nonelectrolye are dissolved in 1.0 kg of water. The freezing point of this…

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Q: What is the Tyndall effect, and how can it be used to help identify colloidal dispersions?

A:

Q: In a laboratory experiment, the freezing point of an aqueous solu- tion of glucose is found to be…

A: ∆Tf = i × kf × m  where ;  ∆Tf is freezing point depression i is van't hoff factor  Kf is freezing…

Q: Chloroform, CHCL3, is a common solvent in organic chemistry. A solution is prepared by dissolving…

A: we have to calculate  molality of solution  boiling point of solution

Q: The concentrated hydrochloric acid we use in the laboratory is 37.4 percent HCl by mass. Calculate…

A: Step 1: Mass percent is used to express a component's concentration in a given mixture. A solution's…

Q: What is the molal concentration of KCl in a solution prepared by adding 2.11 mol of KCl to 889 g of…

A: Molal concentration is defined as the moles of solute present per Kg of the solvent  hence molal…

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: the

A:

Q: The mole fraction of copper(II) nitrate in an aqueous copper(II) nitrate solution is

A: Given: Mole fraction of Copper(II) nitrate in an aqueous Copper(II) nitrate solution = 0.126 To…

Q: A solution contains 92.2g of methanol, CH3OH, dissolved in sufficient water to give a  mass of…

A: The molality of a solution is calculated by the formula: Molality m=mol of solutemass of solvent kg

Q: The solution's osmotic

A: Osmotic pressure is one of the four colligative properties of the solutions. Osmosis can be de\fined…

Q: What is the molality of a 24.4% (by mass) aqueous solution of phosphoric acid?

A: Given, % by mass of aqueous solution of phosphoric acid (H3PO4) = 24.4 %   This means that 100 g of…

Q: 5. Calculate the molality of a sulfuric acid solution containing 24.4 g sulfuric acid in 198 g…

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Q: What is the molality of HCI in a aqueous solution in which the mole fraction of HCI is 0.220?

A: Given - - > Mole Fraction of HCl = 0.220 Molality of HCl = ?

Q: Explain the difference between Crystalloid and Colloid Solutions

A: We have to differentiate between Crystalloid and Colloid Solutions.

Q: If an aqueous solution is very dilute, will its molality be greater than its polarity, nearly the…

A: If an aqueous solution is very dilute, will its molality be Greater than its polarity, Nearly the…

Q: An aqueous solution of 9.00 g of catalase, an enzyme found in the liver, has a volume of 1.00 L at…

A: The mass of catalase = 9 g Volume = 1 L Temperature = 27◦C or (273.15+27) K

Q: Calculate the molality when 55.0 grams of MgCl2 is dissolved in 500.0 g of solvent.

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Q: Suppose you have 1.7 g NaCl in 100.0 g of water. Calculate the molality based on the molar mass.…

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Q: A solution is made up by dissolving 15.0 g MgSO4· 7H2O in 140.0 g of water. What is the molality of…

A: Since molar mass of solute i.e MgSO4.7H2O = Atomic mass of Mg + Atomic mass of S + Atomic mass of O…

Q: A solution of sodium chloride in water has a vapor pressure of 19.6 torr. What is the mole fraction…

A: Given data, The vapor pressure of pure water = 23.8 torr. The vapor pressure of solution = 19.6…

Q: You have a solution of 10.0 g of sucrose in 100.0 of water. Calculate the molality based on the…

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Q: When 2.73 g2.73 g of a nonelectrolyte solute is dissolved in wat

A: In simple terms osmosis is defined as Osmotic pressure can also be explained as the pressure needed…

Q: Why is it necessary to express the concentration of solute in units of molality rather than…

A: Given : We have to tell why there is need to tell mass of solute in terms of molality .

Q: If 40 g of potassium nitrate, KNO3, are dissolved in 500 g of water, what will be the molality of…

A:

Q: 18. A 1.32 M aqueous solution of ethanol has a density of 0.951 g/mL. Calculate the molality of this…

A: Concentration of ethanol solution= 1.32M Density of solution= 0.951 g/mLMolality of the solution=?

Q: Molality is defined as g solute/L of solvent mol solute/kg of solution mol solute/L of solution mol…

A: In this question we have to tell the molality of the solution.