The molality of potassium bromide, KBr, in an aqueous solution is 2.62 mol/kg. What is the mole fraction of potassium bromide in the solution?

Q: When 2.03 g of a nonelectrolyte solute is dissolved in water to make 595 mL of solution at 23 °C,…

A: Given mass of non-electrolyte solute is 2.03 g  Volume of solution is 595 mL  Given osmotic pressure…

Q: An aqueous solution of 13.50 g of catalase, an enzyme found in the liver, has a volume of 1.00 L at…

A: Since the osmotic pressure is given by  Osmotic pressure = i X CRT where i = Van't Hoff factor = 1…

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: COCl2(g) ---> CO(g) + Cl2(g)   6. Is this reaction spontaneous under standard conditions? 7. If…

A: If there is an increase in the moles of gaseous compounds then the entropy change for the reaction…

Q: Differentiate among a homogeneous solution, suspension and a colloidal solution, giving a suitable…

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Q: Calculate the molality of a sucrose solution made by dissolving 39.5 grams sucrose into 99.6 grams…

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Q: Q5: Determine the osmotic pressure of a solution prepared by dissolving 2.5 x 10 g of K₂SO4 in 2L of…

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Q: molar mass

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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: 38.5 grams of copper(iii)sulfate is mixed in 140 ml of water. Calculate the molal concentration of…

A: Given; Mass of solute=38.5g Volume of the solution=140ml Formula: Molarity=moles of solutevolume of…

Q: What is the solubility of argon (in units of grams per liter) in water at 25 °C, when the Ar gas…

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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: 2.A solution that contains 12.6 g of a nonvolatile nondissociating solute in 400. g of benzene…

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Q: What is the molality of a solution prepared by dissolving 38.46 g of tin(IV) chloride in 98.4 g of…

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Q: What is the solubility of cyclopropane (in units of grams per liter) in water at 25 °C, when the…

A: Answer: Given partial pressure of Cyclopropane is: P=489mmHg Since, 1tm=760mmHg , therefore…

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

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Q: A researcher dissolved 12.5 mg of a protein in 1.50 mL of water at 5.00 °C. The resulting osmotic…

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Q: The solubility of ethanol, CH 3 CH 2 OH, in water is greater than the solubility of propane, CH 3 CH…

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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: 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: ou have an aqueous solution of Ca(NO3)2 with a molality of 7.26 mol/kg and a density of 1.4963 g/mL.…

A: The mole of solute present in a one-liter solution is known as the molarity of the solution. The…

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 solution composed of 3.25 g methanol (CH3OH) and 250 mL of water?

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

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

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Q: Explain the difference between Crystalloid and Colloid Solutions

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

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: What is the solubility of potassium chloride at 20 degrees Celsius?

A: The solubility of different salts in water at a particular temperature can be judged from the…

Q: At 25.0 °C, 100.0 mL of an aqueous solution containing 45.2 mg of a molecular solute has an osmotic…

A: we will use osmotic pressure formula

Q: What is molality of a solution prepared by dissolving 20g MgCl2 in 250 g water?

A: We have to calculate the molality of solution.

Q: A certain sample of concentrated hydrochloric acid is 30.8 % HCI. Calculate the molality of this…

A: Given, Percentage of concentrated hydrochloric acid (HCl) = 30.8 % Molality of the solution = ?…

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: Determine the molality of a solution prepared by dissolving 28.60 g of glucose (C 6 H 12 O 6 ) into…

A: Mass of glucose = 28.60 g  Mass of water = 250 g = 0.250 kg We need to find molality of solution.…

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: What is the osmotic pressure at 25 °C when 50 mL of a solution containing 4.25 g of electrolyte…

A: Given,Mass of CaCl2 = 4.25 gMolar mass of CaCl2 = 111 g/molVolume of solution = 50 mLTemperature =…

Q: Calculate the molality of a solution formed by dissolving 36.6 g of lithium iodide (LiI) in 500.0 mL…

A: Given :  Here Lithium iodide is a solute while Water is the solvent. Mass of Lithium iodide (m) =…