In a laboratory experiment, the freezing point of an aqueous solu- tion of glucose is found to be –0.325°C. What is the molal concen- tration of this solution?

Q: The vapor pressure of 0.388 g of a pure substance is 0.631 atm at 20degree celcius (the molar mass…

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Q: Why does the solubility of any gas in water decrease with rising temperature?

A: When water with gas is subjected to heat, the kinetic energy of molecules present in both solute and…

Q: A 0.608 g sample of a protein was dissolved in 25.00 mL of water and the resulting osmotic pressure…

A: Osmotic pressure is related to concentration and temperature by the equation π = CRT π = osmotic…

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

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Q: A certain solution of concentrated aqueous ammonia contains 1.10 mol NH3dissolved in 2.37 mol H2O.…

A: Given: Moles of NH3 = 1.1 And moles of  H2O = 2.37

Q: Define the term Molality?

A: Molality is one of the many parameters that is used to express concentration of a solution.

Q: Calculate the molality of a solution containing 250g of glucose (C6H12O6) in 1045 g of ethanol.

A: Molality : Molality can be defined as "Total moles of a solute present in one kilogram of a…

Q: The concentration of glucose, C6H12O6, in normal spinal fluid is 75 mg per 100 g. What is the…

A: The molality of a solution is defined as the number of moles of solute present in 1kg of the…

Q: Given that an aqueous solution of glucose (C6H1206) has a density of 1.0173 kg/L, what is the molar…

A: Answer :-  The molality of Glucose solution = 0.253 M…

Q: Enter your answer in the provided box. Calculate the molality of a solution containing 190.6 g of…

A: Molality is defined as no of moles of solute per kg of solvent molality=no of molesmass of solvent…

Q: Calculate the molality of a solution containing (a) 0.65 mol glucose, C6H,206, in 250 gm water (b)…

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Q: etermine the molal concentration of a solution that contai ass of methanol is 32 04 g/mol

A: We have to find the molal concentration that is also known as molality  Given Mass of solvent…

Q: The concentration of glucose, C6H12O6, in normal spinal fluid is 75 mg/100 g . What is the molality…

A: Given : Concentration of glucose=75 mg/100 g.which means 75 mg of glucose in 100 g of solution…

Q: What is the boiling point of an aqueous solution of ethylene glycol which is 1.70 molal? A. 0.880oC…

A: Given, Molality of the solution = 1.70 m Boiling point of an aqueous solution of ethylene glycol…

Q: The osmotic pressure in atm is 430 mM K3PO4 at 300.0 K.

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Q: A solution containing 27.55 mg of an unknown protein per 25.0 mL solution was found to have an…

A: ANSWERE IS DISCUSSED BELOW :

Q: A 250 mL solution containing 21.4 g of a polymer in toluene had an osmotic pressure of o.055 atm at…

A: Given data, Osmatic pressure of toluene π=0.055 atm Temperature T=27°C=(27+273)=300K Volume V=250…

Q: How many grams of N a 2 C O 3 must be dissolved into155 g of water to create a solution with a…

A: Here we have to apply the molality formula

Q: 50 grams of water containing a certain amount of sucrose boils at 100.77 C. What is the molal…

A: Colligative properties are the properties of a solution that depends on the number of solute…

Q: A 31.9 g sample of a K2SO4 dissolves in 180. g of water. If the Kf  (H2O) = 1.86 oC/molal.  What is…

A: Depression in freezing point is given by  depression in freezing point = Kf X m X i  where m =…

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 solution of aqueous substance(molar mass 90.8g/mol) has a molarity of 2.1M and density of…

A: Given   The molarity is 2.1 M. The molar mass of substance is 90.8 g/mol The density is 1.08 g/mL

Q: What is the molality of an alloy containing .03 g of silver and 4.75 g of iron?

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Q: A solution containing 25.60mg of an unknown protein per 27.5 mL solution was found to have an…

A: The osmotic pressure equation is employed to determine the molarity of unknown protein solution.

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: How do we calculate the osmolality of ionic compounds?

A: To explain: How to calculate the Osmolality of the ionic compounds.

Q: An aqueous solution is 2.00 M urea. The density of the solution is 1.029 g/mL. What isthe molal…

A: Given data contains, Molarity of solution is 2.00 M. Density is 1.029 g/mL.

Q: What molality of a nonvolatile, nonelectrolyte solute is needed to raise the boiling point of water…

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Q: Calculate the molality of a solution containing 109g of glucose (C6H12O6) in 679 g of ethanol.

A: Answer:  0.891 mol/Kg

Q: If a solution of 1.00g of unknown solute is added to 9.116 g of steric acid and the solution freezes…

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Q: What is 1molal solution?

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

A: The aqueous copper (II) nitrate solution has water and copper (II) nitrate with it. The number of…

Q: Define molality

A: Molality is a term used to measure concentrations of the solution. Molality is defined as the number…

Q: What is the molal concentration of C10H8 in a solution made by dissolving 0.127 g C10H8 in 9.132 g…

A: In the given question, we are required to determine the molal concentration of C10H8 in a solution…

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: What is the molality of a solution that was obtained through the dissolution of 240 mL of pure…

A:

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: Explain the existence of colligative properties using the concept of chemical potentials.

A: Colligative properties

Q: What is the change in freezing point of an aqueous solution of glucose that has a molality of 1.7?…

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Q: A solution of water (Kb=0.512 ∘C/mKb=0.512 ∘C/m) and glucose boils at 103.06 ∘C∘C. What is the molal…

A: Answer: Addition of non-volatile solute in a solvent, decreases the vapor pressure of solution which…

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

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Q: At 25°C a solution containing 5.25g of a substance in 150.0cm³ of solution exerts an osmotic…

A: 1st question:  Data given: Mass of the substance, m = 5.25 g Temperature of the substance, m = 25 °C…

Q: What is the molality of a solution containing 23 mol glucose and 4.7 kg of water?

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Q: The freezing point of an aqueous solution of barium nitrate is -2.65°C. Determine the apparent molal…

A: Given: Freezing point of solution = -2.65°C Freezing point of water = 0°C Molal freezing point…

Q: Calculate the molality of an alcohol in aqueous solution if the mole fraction of the alcohol is…

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Q: What is the molality of a solution consisting of 9.265 mass % of C2H5OH dissolved in water

A: Since we know that molality is define as the number of mole of solute per kg of solvent Here mass%=…

Q: what is the molality of a 0.3 osmolal solution of CaCl2

A: Given: The osmolality of the CaCl2 solution = 0.3 osmolal CaCl2 is made up of three ions, i.e., Ca2+…