The molecular mass of hemoglobin is 6.86 x 104 g/mol.  What mass of hemoglobin must be present per 100.0 mL of a solution to exert an osmotic pressure of 7.25 mmHg at 25 ºC?

Q: Insulin is a hormone responsible for the regulation of the glucose levels in the blood. An aqueous…

A: Relation between osmotic pressure and concentration is given below. π=CRT Here π is an osmotic…

Q: What is the change in freezing point of an aqueous solution of ethanol that has a molality of 2.2?…

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: What is the molality of a solution prepared by dissolving 85.0  g of ethylene glycol, HOCH2CH2OH, in…

A: The molality of a solution prepared by dissolving 85.0  g of ethylene glycol, HOCH2CH2OH, in 1.55  L…

Q: Consider two glucose-in-water solutions. 1 g of glucose in 100 mL water equals one solution. The…

A: We know that : osmotic pressure (π) = CRT  This means osmotic pressure is directly proportional to…

Q: 150.0 mL sample of an aqueous solution at 25°C contains 15.2 mg of an unknown nonelectrolyte…

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Q: Maltose, C12H22O11, is a sugar produced by malting (sprouting) grain. A solution of maltose at 25°C…

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

Q: Assuming 100% dissociation in aqueous solution, calculate the freezing point of a solution made by…

A: It is given that there is 100 % dissociation of NaCl in the solution. Mass of NaCl = 16.94 g The…

Q: 2. What is the molality of a solution containing 0.75 moles of sodium hydroxide in 500 milliliters…

A: Hi, since you have posted multiple questions. We answer the very first question. Kindly repost the…

Q: The freezing point depression of a solution is dependent on the number of particles in the solution,…

A: Solution:- Given data:- 0.1 mole of Na3PO4 in 1 L water 0.1 mole of NaCl in 1 L water. So,…

Q: solution is prepared by dissolving 104.1 grams of barium chloride, BaCl2 in 1000. grams of water?…

A: Depression in freezing point.

Q: Pepsin an enzyme involved in the process of digestion. Its molar mass is about 3.50x 104 g/mol. What…

A: Osmotic pressure (π) The minimum pressure that prevents the osmosis process is called osmotic…

Q: What is the molality of an aqueous 2.39 M C6H12O6 solution. The density of the solution is 1.16 g/mL

A: Given,  Molarity of solution= 2.39 M Density of solution= 1.16 g/ml We need to calculate the…

Q: In a 54.0-g aqueous solution of methanol, CH4O, the mole fraction of methanol is 0.220. What is the…

A: mole fraction : It is the ratio of moles of a particular component to that of the total moles of…

Q: (Q65) Calculate the vapor pressure (in torr) at 30°C of a solution containing 120.4 grams of the…

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Q: Which aqueous solution has the greatest osmotic pressure? O 0.60 M NaCl 00.80 M glucose 00.30 M…

A: Here we are required to aqueous solution having greatest osmotic  pressure.

Q: R 11.98 A solution of an unknown molecular substance in water at 300 K gives rise to an osmotic…

A: osmotic pressure = 4.85 atm Temperature ( T) = 300 k Osmotic pressure = CiRT

Q: What is the osmotic pressure in atm of a 1.0L solution of 1.50g NaCl(aq) at 25°C?

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Q: (Q71) The osmotic pressure of a solution containing 36.0 mg of an unknown protein dissolved in 5.84…

A: Given,  Mass of the unknown protein,  W = 36 mg = 0.036 g Volume of the solution,  V = 5.84 ml…

Q: 4. Calculate the molality of each of the following solutions: a. 2.89 g of NaCi dissolved in 0.159 L…

A: a. 1mL of h2o = 2.89/159 g of NaCl                      = 0.018 g of NaCl Moles of NaCl = 0.018/58.5…

Q: What is the mol fraction of ethanol, C 2H 5OH, in a solution of 75.3g of ethanol and 525g of water?…

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: What is the molality of 12.5N HNO3 solution? Density=1.503 g/mL

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Q: What is the Osmotic pressure of a 15.0 percent by mass aqueous solution of NaCl with a density of…

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Q: 10. What is the osmotic pressure at 25.0 °C of an isotonic saline solution that contains 0.900 g…

A: Given mass of NaCl = 0.900 g  Gram molar mass of NaCl = 58.44 g/mol  Temperature  T = 25 0C = 273 +…

Q: a 19.805 mM solution of Ba(NO3)2 is 1.061 atm at 25.77 °C. How many ions per formula unit of…

A: T = 25.77°C  T = 25.77 + 273.15 K  T = 298.92 K    And  C = 19.805 mM  [ NOTE : 1mM = 10^-3 M ]  C =…

Q: 2. A 1.0 g sample of a molecular compound having a molecular weight of 100,000 g/mol is dissolved in…

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Q: In which of these solutions water has the lowest vapor pressure at 25oC? (m = molality)…

A: ∆P = P° - PP = m x iwere,∆P = lowering of vapor pressureP°= vapor pressure of pure solventP  = vapor…

Q: at a time, the following solutions are put across as osmotic membrane from a solution of 0.25M NaCl.…

A: When solvent molecules move from the low concentration solution to the high concentration solution,…

Q: A solution of an 1.24 g of an unknown protein dissolved in enough water to make 0.020 L of solution…

A: Given, Weight of the protein =1.24g Volume of the solution = 0.02L Osmotic pressure = 224 torr =…

Q: What is the freezing point of a solution consisting of 0.255 moles of methanol added to 150 g of…

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

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Q: (Q65) Calculate the vapor pressure (in torr) at 30°C of a solution containing 144.6 grams of the…

A: According to colligative property when a non electrolyte is  added to a a solvent then there is…

Q: An aqueous solution is 4.00% ammonium chloride, NHĄ Cl, by mass. The density of the solution is…

A: Assuming we have 100 g of the solution  Since % by mass = mass of solute X 100 / mass of solution…

Q: Which of the following aqueous solution has the lowest osmotic pressure? All of them are…

A: Osmotic pressure is the pressure that is needed to stop osmosis. Osmotic pressure of the solution is…

Q: An aqueous solution of human serum albumin protein has an osmotic pressure of 5.85 mmHg at 25 ° C.…

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Q: In a 56.0-g aqueous solution of methanol, CH,O, the mole fraction of methanol is 0.280. What is the…

A: Molar mass of methanol = 32.04 g / mol Let mass of methanol present = a g Mass of water = (56 - a) g…

Q: What is the molality of a solution made by dissolving 25.9 grams of CaCl 2 in 625 grams of water?…

A: Molality(M)=Number of moles of solute/Mass of solvent in kgs that is molality means how many moles…

Q: An aqueous solution of a soluble compound (a nonelectrolyte) is prepared by dissolving 33.2 g of the…

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

Q: Calculate the molality of a solution that contains 81.2 g of naphthalene, C10H8 , in 500. mL of…

A: Since molality is defined as the moles of solute present in per Kg of solvent  Hence molality =…

Q: The molar mass of a polymer can be determined from the osmotic pressure of a solution. If the…

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Q: In a 50.0-g aqueous solution of methanol, CH,O, the mole fraction of methanol is 0.190. What is the…

A: Let the mass of methanol be x g Mass of water = 50 - x Molar Mass of CH4O = 32 g/mol Molar Mass of…

Q: An isotonic solution is prepared by dissolving 4.50 g NaCl (molar mass = 58.44 g/mol) in 500. mL of…

A: The relation between the osmotic pressure and Molarity can be expressed mathematically as: Here, π…

Q: 4. The density of acetonitrile (CH3CN) is 0.786 g/mL and the density of methanol (CH3OH) is 0.791…

A: Mole fraction of x = no.of moles of x/total moles  Molality is the ratio of moles of solute to the…

Q: 7. The solution has a density of 1.19 g/mL. What is the a. molarity of hydrochloric acid (with water…

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Q: molar mass

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Q: Pepsin is an enzyme involved in the process of digestion. Its molar mass is about 3.50 x 10 g/mol.…

A: Given: Mass of sample of pepsin = 0.150 g Volume of pepsin solution = 40 mL = 0.040 L Molar mass of…

Q: Which of the following solutions has the lowest osmotic pressure? A) 0.10 M Al(NO3)3 B) 0.20 M…

A: In this question, we have to find out the correct answer of given problem by the help of osmotic…

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

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Q: Consider following aqueous solutions: 2.75 m sucrose / 1.50 m NaC1 / 1.00 m LiPO4 / Pure Water /…

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Q: What are the boiling point and freezing point of a 2.47 m solution of naphthalene in benzene? (The…

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Q: A solution of vinegar is 0.763 M acetic acid, HC2H3O2. The density of the vinegar is 1.004 g/mL.…

A: Given data,  molarity of acetic acid, HC2H3O2 = 0.763 M  Density of vinegar = 1.004 g/mL