The osmoticpressure of an aqueous solution of certain protein was measured to determine its molar mass. The solution contained 2.743 mg of protein in sufficient H2O to form 17.66 of solution The measured osmotic pressure of this solution was 1.543 torr at 25.00 degree Celsius.  Calculate the molar mass of the protein

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: A sample of Na2CO3 is dissolved in water to give 504 mL of solution at 280 K. The osmotic pressure…

A: Osmotic pressure is the minimum pressure which needs to be applied to the solution to prevent the…

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

A:

Q: Calculate the molalities of the following aqueous solutions: (a) 1.016 M sugar (C12H22011) solution…

A:

Q: An aqueous sodium acetate, NaC, H,O2, solution is made by dissolving 0.280 mol NaC, H302 in 0.660 kg…

A: Moles of NaC2H3O2 = 0.280 moles Mass of water = 0.660 Kg

Q: Density of Mole fraction of Molarity Molality % by Mass ppm solution solute 1.29 30.0

A: Given that:  Density of KOH solution = 1.29g/ml  % by mass of KOH = 30.0  Molar mass of KOH =…

Q: The osmotic pressure of a 0.010 M aqueous solution of CaCl2 is found to be 0.674 atm at 25 °C.…

A: When a substance is dissolved in a solvent, the ratio between the actual concentration of the…

Q: what is the approximate van't hoff factor for Cs3PO4 (aq), which is the solvent and solute.

A: The van’t hoff factor can be described as the ratio of the total number of moles of substances after…

Q: The molality of ethanol, CH3CH2OH, in an aqueous solution is 8.95 mol/kg. What is the mole fraction…

A:

Q: A mixture is made by mixing equal volumes of corn syrup (d=1.4 g/mL, C6H14O7) and water (d=1.0 g/mL)…

A: Molality = number of moles of solute/Mass of solvent in Kg

Q: What is the mole fraction χ for the solvent in a 1.50 molal solution of ethanol (C2H5OH) in water?

A: We have to find mole fraction χ for the solvent in a 1.50 molal solution of ethanol (C2H5OH) in…

Q: After the addition of 24 g of ethanol (C2H5OH) to 1 kg of water, the freezing point of the solution…

A: Cryoscopic constant: It is the freezing point depression that is produced when the one mole of the…

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 of 2.50 g of a compound of empirical formula C6H5P in 25.0 g of benzene is observed to…

A: Given : Tf = the freezing point of the solution     = 4.3°C  T°f = the freezing point of the pure…

Q: Density of Mole fraction of Molarity Molality % by Mass ppm solution solute

A:

Q: When 0.548 grams of a protein were dissolved in 14.4 mL of benzene at 26.7 degrees C, the osmotic…

A: The osmotic pressure is expressed as:

Q: Sucrose is a covalent compound that has the formula C12H22O11. What is the mole fraction of sucrose…

A:

Q: A solution is prepared by dissolving 20.0mg of insulin in water and diluting to a volume of 5.00mL…

A: The given problem can be solved by using the formula given as; π=MRTM=πRT…

Q: The osmotic pressure of a solution of 375.5 mg of an unknown protein per 25.0 mL solution was found…

A: Given: The osmotic pressure is 3.22 torr. The temperature is 25 °C. The mass of protein is 375.5 mg.…

Q: The normal boiling point of methanol is 64.78C. A solution containing a nonvolatile solute dissolved…

A: The temperature point at which the vapor pressure of a solution becomes exactly equal to the…

Q: A 0.183 m aqueous NaBr (molar mass =102.89g/mol) solution was created (density 1.038g/mL). What is…

A: The solute is NaBr and the solvent is water. XNaBr  = nNaBrnNaBr + nH2O where nNaBr and nH2O are the…

Q: Aqueous ethanol solutions are prepared by mixing measured weights of assayed ethanol and…

A:

Q: A 35mg sample of a protein is dissolved in 10 ml of water at 25 degree Celsius and an osmotic…

A:

Q: The osmotic pressure of a 3.30 mL solution containing 0.181 g of protein dissolved in water is…

A:

Q: When 0.713 grams of a protein were dissolved in 72.5 mL of solution at 28.5 degrees C, the osmotic…

A: Osmotic pressure is an colligative property meaning it depends upon the amount of solute or ions…

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 molality of an aqueous solution of sugar (C12H22O11) is 1.75m. Calculate the mole fractions of…

A: Given, molality of the sugar (C12H22O11) solution = 1.75 m = 1.75 mol/kg Mole fractions of sugar and…

Q: calculate the molality and the mass percent of the solute in a solution of toluene (C7H8) and…

A: The relation between molality and mole fraction of solute is shown below:

Q: The osmotic pressure of an aqueous solution of a protein at 22degree celcius was used to determine…

A: Given , Temperature (T) = 22°C = (22+273.15) K = 295.15 K Mass of protein (m) = 7.43 mg = 7.43×10-3…

Q: Complete the following table for aqueous solutions of potassium hydroxide. Show complete solution.…

A: Given, The density of the solution = d = 1.43 Molality = m = 1.13  Molar mass of KOH = 56.11 g/mol…

Q: What would be the theoretical freezing point of a solution made by dissolving 10.75 g of CoCl 2 in…

A: Since you have posted multiple questions, we will answer the first one for you. Kindly post the…

Q: The solution contained 2.743 mg of protein in sufficient H2O to form 17.66 of solution The measured…

A: A numerical problem based on colligative property, which is to be accomplished.

Q: Suppose you dissolve 0.210 g of a newly isolated protein in 25.o ml of water. The solution has an…

A: Given,  Mass of protein, (W2) = 0.210 g  Volume of solution = 25 ml = 0.025 L  Temperature, T = 275…

Q: A nonvolatile solute is dissolved in benzene and the resulting solution has a vapor pressure of 18.1…

A: Given           The vapor pressure of the resulting solution = 18.1 torr.           The vapor…

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

A: Colligative properties

Q: Calculate the molalities of the following aqueous solutions: (a) 1.21 M sugar (C12H22011) solution…

A: Molality = no. of moles of solute/Mass of solvent (kg) Now, we have to calculate 'no. of moles of…

Q: A 0.9720 M aqueous solution of NaCl has a density of 1.03625 g/cm3 at 25 °C, Calculate the molality…

A:

Q: The normal boiling point of ethanol, CH3CH2OH, is78.4 °C. When 9.15 g of a soluble nonelectrolyte is…

A: At boiling point, the vapor pressure of liquid becomes equal the atmospheric pressure.

Q: The concentrated sulfuric acid that we use in the laboratory is 98.0% H SO, by mass. Calculate the…

A:

Q: Calculate the molalities of the following aqueous solutions: (a) 1.000 M sugar (C12H22O11) solution…

A: The molality of a solution is calculated using the below formula.

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

A:

Q: The molal elevation constant for water is 0.513 °C kg mol–. When 0.8 mole of sugar is dissolved in…

A:

Q: The freezing point of a 0.01 m aqueous solution of a nonvolatile electrolyte is -0.0720C. What is…

A: The freezing point, Tf , of 0.01 m solution is -0.072o C. As the solution is aqueous, that is the…

Q: The mole fraction of iodine, I2, dissolved in dichloromethane, CH2Cl2, is 0.115. What is the molal…

A: The amount of the substance dissolved in the given volume of the solvent to furnish the solution can…

Q: A protein subunit from an enzyme is part of a research study and needs to be characterized. A total…

A: Given: Mass of protein = 0.165 g Volume of solution prepared = 2.00 mL = 0.002 L…

Q: A bottle of phosphoric acid is labeled “85.0% H;PO, by mass; density = 1. 689 g/cm2." Calculate the…

A:

Q: Concentrated aqueous ammonia contains 1.06 mol dissolved in 2.44 mol H2O. What is the mole fraction…

A: Given, Moles of ammonia (nNH3) = 1.06 mol Moles of water (nH2O) = 2.44 mol Mole fraction Ammonia…

Q: The organic compounds chloroform and dichloromethane form ideal solutions when mixed together; at 25…

A: The solution is as follows :