A solution is prepared (data below). Calculation the molality (mol/Kg) of the solution. Solvent: 100.0 g solute: 3.00 g Freezing point of pure solvent: 68.0 oC Freezing point of the solution: 58.8 oC Kf: 4.0 mol/(g oC)

Q: Determine the freezing point of a solution which contains 0.31 mol of sucrose in 175 g of water.…

A: Given moles of sucrose = 0.31 mol mass of water = 175 g For water , Kf = 1.86 oC/m  Let freezing…

Q: A student dissolves 15. g of sucrose (C₁2H₂2O₁1) in 300. mL of a solvent with a density of 1.02…

A: mass of sucrose (C12H22O11) = 15. gVolume of the solvent = 300. mL Density of the solvent = 1.02…

Q: A solution is 5.0% m/v. What is the mass of the dissolved solid in 2500 ml of the solution? 1.…

A: The percent mass by volume (% m/v) : The mass of Solute dissolved in the 100 of the Solution .   A…

Q: The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kf=20.0. 0.140 g of an unknown…

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

Q: 9. A solution contains 57.5 mL ethyl alcohol (C₂H5OH) and 600 mL benzene (CH₂). Given that 1000 g…

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Q: A KCI3 solution contains 105.5 g of KCI dissolved in 250.0 g of water at 60 degree C. Is the…

A:

Q: Consider naphthalene, C10H8. A solution of naphthalene is prepared by mixing 25.0g of naphthalene…

A: The molality of the solution is calculated as follows:

Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Molar Mass of napthalene (C10H8) = 128 g/mol Molar mass of pyrene (C16H10) = 202 g/mol Mass of…

Q: A solution is made by dissolving 25.0 g of sodium chloride, in 265 g of water. Calculate the…

A: As you have posted multiple questions, we will answer the first question for you. Kindly repost the…

Q: Equal masses of acetone (CH3COCH3, molar mass = 58 g/mol and density = 0.79 g/mL) and water (molar…

A: Molality is given by  Molality = moles of solute / mass of solvent in Kg Since molality of acetone…

Q: Consider a solution of the solute CHCI3 in the solvent CHBR3. If the molality of the solution is…

A: Dipression in freezing point (∆Tf) for any solution is directly proportional to the molality (m) of…

Q: A student dissolves 6.1 g of styrene (C3H3) in 225. mL of a solvent with a density of 0.87 g/mL. The…

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Q: The freezing point of water is 0.00°C at 1 atmosphere.  How many grams of ammonium chloride (53.50…

A: Given: The mass of water is 288.0 g. The freezing point of the solution is 0.500°C. The Kf for water…

Q: 1. A chemical technician assessed the composition of a liter of seawater and found to contain…

A: Here we are required to find the Molarity and molality of the solution

Q: 4. A compound contains 42.9% C, 2.4% H, 16.6% N, and 38.1% O by mass. The addition of 3.16 g of this…

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Q: The boiling point of water is 100.0°C at 1 atmosphere. How many grams of zinc acetate (183.5…

A: Given: Elevation in boiling point = 0.450°C Mass of water = 212.0 g Molar mass of zinc acetate =…

Q: Potassium hydroxide (KOH) has a lattice energy of −789.0 kJ/mol−789.0 kJ/mol and a heat of hydration…

A: Volume of solution could be heated can be calculated from the energy required for heating and the…

Q: The freezing point of a solution of 1.648 g of an unknown nonelectrolyte dissolved in 76.21 g of…

A: Data given: The freezing point of a solution of an unknown nonelectrolyte, Tf = 1.39 °C The freezing…

Q: Calculate the molality of the solute in a solution containing 5.91 g MGNH,PO, in 250.0 mL of…

A:

Q: When a 49.0-g sample of an unknown compound is dissolved in 500.g of benzene, the freezing point of…

A: Given,  Mass of unknown sample = 49.0 g Mass of benzene solvent = 500.0 g = 0.5 Kg Freezing point of…

Q: A compound of cobalt, carbon, and oxygen contains 28.1% C and 34.5% Co. When 0.147 g of this…

A: The depression in freezing point = freezing point of solvent (cyclohexane) - freezing point of…

Q: What mass of H2O (in grams) is needed to dissolve 6.03 g Li3PO4 to produce a solution having a…

A:

Q: The freezing point of water is 0.00°C at 1 atmosphere. How many grams of ammonium chloride (53.50…

A: Given  Mass of water   = 211 gram                           =  0.211 Kg  Molar mass of Ammonium…

Q: A 3.03-gram sample of a compound is dissolved in 250. grams of benzene. The freezing point of this…

A: We can use the formula: ΔT = Kf x m where ΔT is the change in freezing point, Kf is the freezing…

Q: 11. Calculate the molality of a solution containing 398 g glucose (C,H12O6) dissolved in 2.00 L of…

A: 11. The mass of solute is = 398 g The volume of the solvent is = 2.00 L The density of the solvent…

Q: 1. Calculate the molality of a solution containing 10.8 g of ethylene glycol (C 2 H 6 O 2 ) in 360 g…

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Q: An aqueous solution is prepared by diluting 3.30 mL acetone (d = 0.789 g/mL) with water to a final…

A: Given. The volume of acetone is 3.30 mL. The volume of final solution is 75.0 mL. The density of…

Q: 2. When 3 g of an unknown solute is dissolved in 50 g of benzene, the resulting solution has a…

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Q: Calculate the freezing point of a solution that contains 168.4 g of sucrose (table sugar) in 300. g…

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Q: The boiling point of water is 100.0°C at 1 atmosphere. How many grams of cobalt(II) nitrate (183.0…

A: we know elevation in boiling point is given as  ∆tb=i×kb×molality

Q: A 3.40-g sample of a mixture of naphthalene (C10H8) and pyrene (C16H10) is dissolved in 35.0 g…

A:

Q: Calculate the freezing point of a solution containing 74.0 g of eucalyptol (C10H8O) solute dissolved…

A: Given, mass of eucalyptol (C10H8O)= 74.0 g            mass of solvent, CHCl3 = 0.600 kg…

Q: Above solution: 0.140 g of an unknown solute is dissolved in 7.88 g of cyclohexane (C6H12). The…

A:

Q: The freezing point of an aqueous solution containing 35 g of an nonelectrolyte in 150 mL water is…

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Q: A 70% sulfuric acid solution has a density of 1.326 g/cm3.  Find the molarity of the solution in…

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Q: If 4.27 grams of sucrose, C12H22O11, are dissolved in 15.2 grams of water, what will be the boiling…

A: Calculate the molality of the solution. Moles of sucrose=4.27/342.3 g/mol=0.012 mol Molality=0.012…

Q: The molar mass of toluene is 93 g/mol. A solution is prepared by dissolving 8.55 g of toluene in…

A: Given that : Mass of toluene = 8.55 g Molar mass of toluene = 93 g/mol Mass of benzene = 100 g = 0.1…

Q: The molal concentration of a solution made by dissolving 3.5 g of CaCl2 (110.98 g/mol) in 353 g of…

A: Given :- mass of CaCl2 = 3.5 g  Mass of water = 353 g  To calculate :- molality of molal…