1) What is the mole fraction of urea, CO(NH2)2, is a solution prepared by dissolving 5.6 g of urea in 30.1 g of methanol, CH3OH? 2) How will an understanding of this concept help you in your healthcare career?

Q: 3, A solution is formed by dissolving 73.0 g of urea, CO(NH2)2, in 300.0 mL of water at 25oC. What…

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Q: 1. Calculate the mole fraction of the solute in the following solutions: a. 100.0 grams C2H60 in…

A: Here, we have to calculate the mole fraction of the solute in: a) 100.0 g of C2H6O in 100.0 g H2O.…

Q: A solution of urea, CN2H4O, molar mass 60.04 g/mol, in water is prepared as follows: 5.161 g urea is…

A: Given: Molar Mass of Urea =60.04 g/mol Mass of urea =5.161 g Volume of solution = 100.00 mL…

Q: What is the osmotic pressure of 12.6 percent by mass aqueous solution of K2SO4 with a…

A: We use the colligative properties in this question

Q: 2. Calculate the mole fraction of each component of a solution containing 65 g of ethanol (C2HaO) in…

A: Given,  Mass of ethanol, C2H6O = 65 grams Mass of water, H2O = 350 g

Q: 2. What is the normal boiling point of the following solutions? (a) 23.5 g NaCl in 120 g H₂O and (b)…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the mole fraction of urea, CO(NH2)2, (MM=60.06 g/mol) in a solution prepared by dissolving…

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Q: A concentrated phosphoric acid solution is 85.5% H3PO4 by mass and has a density of 1.69 g/mL at…

A: Given: The percent by mass of H3PO4 is 85.5%. The density is 1.69 g/mL The weight of urea is 5.6 g…

Q: 1.Calculate the mole fraction of each component of a solution containing 65 g of ethanol (C2H6O) in…

A: mass of C2H6O=65 g , molar mass=46 g mol-1  mass of H2O=350 g , molar mass = 18 g mol-1  then,

Q: A concentrated phosphoric acid solution is 85.5% H3PO4 by mass and has a density of 1.69 g/mL at…

A: a) Given : % by mass of H3PO4 is 85.5 % and density = 1.69 g/mL Assuming we have 1 L i.e 1000 mL of…

Q: Which aqueous solution would be expected to have the highest boiling point? a. 0.100m KCl c. 0.75m…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Pheromones are compounds secreted by the females of many insect species to attract males. One of…

A: The molecular mass can be  calculated by using Colligative property depression in freezing point

Q: A solution composed of 05.0 g strontium chloride (SrCl2) in 250 g of water at 22.7 "C. What is the…

A: The mole fraction can be defined as shown below:  Mole fraction of a component=Number of moles of…

Q: A solution of H2SO4 containing 50.0% H2SO4 by mass has a density of 1.40 g/mL. Express its…

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Q: freezing points

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

A: since density = mass / volume  Hence mass = density X volume  => mass of CH3OH = 15.7 X 0.791 =…

Q: You have a solution prepared by dissolving 6.8 g of urea, CO(NH2)2 , in 33.5 g of methanol, CH3OH.…

A: A solution prepared by dissolving 6.8 g of urea, CO(NH2)2 , in 33.5 g of methanol, CH3OH. First…

Q: How would you prepare the following aqueous solutions?(a) 3.10X10² g of 0.125 methylene glycol…

A: a) First determine the amount of ethylene glycol. Calculate the mass of solute, ethylene glycol.

Q: Pentane (C5 H12) and hexane (C6H14) form an ideal solution. At 25°C the vapor pressures of pentane…

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Q: The boiling point of pure ethanol, C2H5OH, is 78.4 ∘C. Its boiling point elevation constant is 1.22…

A: Given,Boiling point of pure ethanol = 78.40C.Boiling point elevation constant = 1.220C/m.Mass of…

Q: A solution of H2SO4 containing 50.0% H2SO4 by mass has a density of 1.40 g/mL. Express its…

A: A solution of 50% of sulphuric acid means 50 g of sulphuric acid in 100 g of solution. Mass of…

Q: The boiling point of a solution of 2.056 moles of an electrolyte dissolved in 1399 g of benzene is…

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Q: mole fraction

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Q: What is the mole fraction of water in a solution composed of 3.25 g methanol (CH3OH) and 250 g of…

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Q: 3. What is the mole fraction of methanol, CH3OH, (molar mass = aqueous solution that is 40.0%…

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Q: In a 55.0-g55.0-g aqueous solution of methanol, CH4O,CH4O, the mole fraction of methanol is…

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Q: What is the mole fraction of ethylene glycol?

A: Mole fraction of ethylene glycol is the ratio of number of moles of ethylene glycol to the total…

Q: 2. 30 grams of ethyl alcohol (C2H$OH) is dissolved in 75 grams of water. Calculate the mole fraction…

A: Molarity of solution is defined as number of moles of solute dissolved per litre of solution.

Q: 2. Calculate the molality of each of the following solutions: (a) 0.710 kg of sodium carbonate…

A: The molality of the solution can be determined by using the formula given below as;…

Q: A concentrated phosphoric acid solution is 85.5% H3PO4 by mass and has a density of 1.69 g/mL at…

A: Molarity = Number of mols of solute/Volume of solution (L) Number of mols = Mass/molar mass  Mass =…

Q: What is the mass percent of an aqueous sodium hydroxide solution in which the mole fraction of NaOH…

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Q: Calculate the boiling point of a solution prepared by adding 11.5 g napthalene (C10H8) to 250.0 g of…

A: The equation is:

Q: 11.96 What osmotic pressure in atmospheres would you expect for each of the following solutions? (a)…

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Q: A solution composed of 75.0 g magnesium iodide (Mgl)) in 300 g of water at 9.7 °C. What is the mole…

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Q: What is the mole fraction of ethanol in a solution made by dissolving 14.6 g of ethanol, C2H5OH, in…

A: Given : Mass of ethanol i.e C2H5OH = 14.6 g And mass of water i.e H2O = 53.6 g. Molar mass of H2O =…

Q: Pentane (C;H12) and hexane (C,H14) form ideal solution. At 25°C the vapor pressure of pentane and…

A: According to Raoult's law the partial pressure of a solution is equal to the product of the mole…

Q: The boiling point of an alcohol is 77.870 ᵒC. at 1atm. When 13.64 g of an unknown compound was…

A: ∆Tb = Tfinal - Tinitial  = 79.228 - 77.870 =  1.358° C

Q: 2. A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor…

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Q: The boiling point of a solution of 1.056 moles of an electrolyte dissolved in 1399 g of benzene is…

A: We have to predict the van't Hoff factor.

Q: concentrated phosphoric acid solution is 85.5% H3PO4 by mass and has a density of 1.69 g/mL at 25°C.…

A:

Q: What are the mole fractions of H3Po4 and water in a solution of 14.5 g of H3PO4 in 125 g of water?…

A: According to the question; mass of H3PO4 =14.5 g mass of H2O = 125 g Required information: molar…

Q: A concentrated phosphoric acid solution is 85.5% H3PO4 by mass and has a density of 1.69 g/mL at…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: A solution of urea, CN2H40, molar mass 60.04 g/mol, in water is prepared as follows: 5.161 g urea is…

A: Given: Molar mass of urea = 60.04 g/mol mass of ures = 5.161 g volume of solution = 100.0 mL density…

Q: The freezing point of ethanol (C2H§OH) is -114.6 °C. The molal freezing point depression constant…

A: Freezing-point depression is a drop in the temperature at which a substance freezes, caused when a…

Q: What is the freezing point of a solution prepared by adding 150. g trichothecin (C19H24O5) to 0.867…

A: The given data contains, mass of trichothecin = 150 g. mass of solvent = 0.867 kg.

Q: Which one of the following dilute aqueous solutions has the largest ideal van't Hoff factor at a…

A: As we add the non-volatile solute into a solvent the number of the solvent particles at the surface…

Q: The osmotic pressure of 5.0-L aqueous solution of sodium hydroxide (NaOH, μNaBr = 39.997 g/mol ) is…

A: Volume = 5.0 L  Osmotic pressure = 2.5 atm  Molar mass of NaOH = 39.997 g/mol  T = 25°C = 298 K…

Q: When 52.3 g of alanine (C3H,NO,) are dissolved in 600. g of a certain mystery liquid X, the freezing…

A: The colligative property is depression in freezing point, and the formula for depression in freezing…

Q: 4. What is the freezing point of a solution that contains 610g of benzoic acid, HC7H502, in125g of…

A: Given :  4.  Mass of benzoic acid = 610 gm  Mass of camphor = 125 gm = 0.125 kg Kf of camphor =…

Q: Urea, (NH 2 ) 2 CO, has been used to melt ice from sidewalks since the use of salt is harmful to…

A: Depression in freezing point - Depression in freezing point is a colligative property which results…