Part 1: Urea is a common fertilizer with the formula CO(NH2)2 that is sometimes used as a chemical de-icer for icy road surfaces in the winter months. Adding a solute to a solvent causes the freezing point to be lowered and allows the solvent to remain liquid at lower temperatures. The value of Kf for water is 1.86°C/m, and its normal freezing point is 0.00°C. Urea is a nonvolatile nonelectrolyte solute. What molality of urea is required to lower the freezing point of ice water by 2.63°C?    .................... m   Using your answer from Part 1, calculate the mass of urea that must be added to 187 mL of water (density 1.00 g/mL) to lower the freezing point by 2.63°C. mass of urea =  ............... g

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A: Given data contains, Partial pressure is 5.5 atm. Henry's law constant is 3.7×10-2 mol/L.atm.

Q: K,= 2.57 °C kg mol for a certain subs 20 colution freezes at 5.7 °C. Calculate the freezing point of…

A: At freezing point of liquid there exists equilibrium between solid particles and solvent phase.…

Q: 2. To what minimum temperature would a radiator be protected if equal volumes of ethylene glycol…

A: The density of ethylene glycol= 1.11 g/mLThe volume of ethylene glycol and water is considered to be…

Q: When 14.3 g of a certain molecular compound X are dissolved in  85.0 g of benzene C6H6, the…

A: The equation for depression in freezing point is given below.

Q: 9) Adding 1g of benzene, C,H6, to 70g cyclohexane, C6H12, lowers the freezing point of the…

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Q: The vapor pressure of benzene, C6H6, is 94.6 Torr at 25 °C. A nonvolatile compound was added to…

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Q: Estimate the freezing point of concentrated aqueous HCl, which is usually sold as a 12 M solution.…

A: Given: Concentration of the solution = 12 M. And the freezing point decreases by 1.9 °C for every…

Q: Butane, C4H10, has been suggested as the refrigerant in household compressors such as those found in…

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Q: A chemistry student weighs out 0.350 kg of an unknown solid compound X and adds it to 700. mL of…

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Q: The boiling point of chloroform, CHCl3, is 61.70 °C at 1 atmosphere. A nonvolatile, nonelectrolyte…

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Q: Elemental analysis of phytoene, an intermediate in the biosynthesis of carotenoids, shows that it…

A: Depression in freezing point (dTf) of a solution is a colligative property that is calculated as per…

Q: Part 1: Urea is a common fertilizer with the formula CO(NH2)2 that is sometimes used as a chemical…

A: Given Kf = 1.86 T1 = 0 T2 = 2.63° C

Q: The vapor pressure of an aqueous solution of silver nitrate at 27 °C is 0.03456 atm. The vapor…

A: Answer:Properties of a solution that depend upon the number of solute particles present in solution…

Q: Compound XY is an ionic compound that dissociates as it dissolves in water. The lattice energy of XY…

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Q: In a mountainous location, the boiling point of pure water is found to be 98.0°C. Нow many grams of…

A: Elevation in boiling point is defined as the elevation in boiling point of water on addition  of a…

Q: A solution was made by mixing 6.25 g of heptane (C7H63, molar mass = 100.21 g/mol) with 46.2 g of…

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Q: The maximum solubility of salicylic acid in pure ethanol is 0.370 g/mL. The molal boiling…

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Q: 5.152g of Na2CO3(s) is added to 75.0mL of water at 21.20°C. When the dissolution is complete, the…

A: Molarity of the solution can be calculated by using Following formula - Molarity = mass×1000/molar…

Q: A solution of a non-electrolyte is made by dissolving 12.15 moles of solute in 1.280 kg of water.…

A: We will first calculate molality of solution , then using it find freezing point of solution.

Q: 7. Camphor (C10H160) freezes at 179.8°C, and it has a particularly large freezing point depression…

A: The expression for freezing point depression is given by, Tf-Ti=Kf.m where Kf is the freezing point…

Q: - 1 The molal freezing point depression constant K₁=2.02 °C-kg-mol for a certain substance X. When…

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Q: In a mountainous location, the boiling point of pure water is found to be 96.6°C. How many grams of…

A: Boiling point of pure water is 96.6˚C. Van’t Hoff Factor, i = 2 Molal elevation constant, Kb =…

Q: The boiling point of benzene, C,H6, is 80.100 °C at 1 atmosphere. K,(benzene) = 2.53 °C/m In a…

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Q: The addition of salt to water decreases the chemical potential of the water.

A: The statement is True. The decrease in chemical potential occurs because the concentration of water…

Q: 40.0 °C/m. When 0.086 g of an organic substance of unknown molar mass is dissolved in 22.01 g of…

A: The fall in freezing point ∆Tf caused by the addition of solute to a solution is proportional to…

Q: Water is added to a flask containing solid NH₄Cl. As the salt dissolves, the solution becomes…

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Q: The boiling point of ethanol, CH3CH2OH, is 78.500 °C at 1 atmosphere. Kp(ethanol) = 1.22 °C/m In a…

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Q: Adding 1g of benzene, CH6, to 70g cyclohexane, CH12, lowers the freezing point of the cyclohexane…

A: The formula to calculate freezing point depression constant is as follows, where, Kf = molal…

Q: A 5.00 g sample of an unknown salt is dissolved in 50.0 mL of water.  During dissolution, the…

A: The question is based on the concept of chemical thermodynamics. we have to to identify heat change…

Q: Besides its use in making black-and-white film, silver ni-trate (AgNO₃) is used similarly in…

A: Given, ΔH(lattice)=822 kJ/mol ΔH(hydration)=799 kJ/mol

Q: The initial freezing temperature of 0.13 kg of a pure solvent is 6°C. 15.0 grams of a solute with…

A: Given: Freezing point of pure solvent = 6 oC Mass of solute added = 15.0 g Molar mass of solute =…

Q: The solubility of ethanol, CH 3 CH 2 OH, in water is greater than the solubility of propane, CH 3 CH…

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Q: What is the freezing point of a 1,4-dioxane solution if that same solution boils at 103.0 °C? The…

A: From the formula of elevation in boiling point, and depression in freezing point, we can solve the…

Q: Suppose that a solution made from an unknown solute dissolved in solvent X. Its molality is 0.0125…

A: Answer

Q: What is the freezing point (in K) of a solution made by dissolving 11.983g of CCl4 in 130.0 g of…

A: Given, Mass of CCl4 solute = 11.983 g Mass of benzene solvent = 130.0 g = 0.130 kg Freezing point of…

Q: What is the freezing point of a solution that contains 475.0 g of ethylene glycol, CH2(OH)CH2(OH),…

A: Information of question

Q: A 0.547 g sample of an unknown solute dissolved in 14.0 g of tert-butanol produces a solution with a…

A: At a specific temperature, when vapor pressure of any particular substance in its liquid and solid…

Q: 1-A sample of pure t-butyl alcohol weighing 6.22 g was found to have a freezing point of 24.7 °C.…

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Q: 15 g of an unknown molecular substance was dissolved in 450 g of water. The resulting solution…

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Q: The vapor pressure of an aqueous solution of copper(II) sulfate at 38 °C is 0.06430 atm. The vapor…

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Q: The freezing point of water, H,0, is 0.000 °C at 1 atmosphere. KAwater) = 1.86 °C/m In a laboratory…

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Q: The vapor pressure of an aqueous solution of iron(III) chloride at 32 °C is 0.04587 atm. The vapor…

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Q: A chemistry student is given 800. mL of a clear aqueous solution at 27.° C. He is told an unknown…

A: Answer:Amount of solid present in 1 L of solution is equal to its solubility in water.Given data:

Q: a) Calculate the freezing point of a solution containing 13.2 gg FeCl3FeCl3 in 156 gg water. b)…

A: Three numerical problems based on colligative properties, which are to be accomplished.

Q: 3) Camphor (CioHıs0) melts at 179.8 °C, and it has a particularly large freezing point depression…

A: At a specific temperature, when vapor pressure of any particular substance in its liquid and solid…

Q: 14. Consider two ionic solids, both composed of singly-charged ions, that have different lattice…

A: Lattice Energy is defined as the energy required to break the crystal into its constituent particles…

Q: Consider a body of water in equilibrium with solid calcium sulfate, CaSo4, for which Ksp= 3.0 x…

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.