The normal freezing point of a certain liquid X is 0.5 °C, but when 4.33 g of urea are dissolved in 300. g of X, it is found that the solution freezes at -1.2 °C instead. Use this information to calculate the molal freezing point depression constant K, of X. Round your answer to 2 significant digits. -1 IC-mol kg

Q: - 1 for a certain substance X. When 35.5 g of urea (NH),CO) The molal freezing point depression…

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Q: The normal freezing point of a certain liquid X is -6.3 °C, but when 23.40 g of urea ((NH,) CO are…

A: Normal freezing point of liquid, X = -6.3°C Mass of urea = 23.40g Mass of X = 750.0g

Q: Je The normal freezing point of a certain liquid X Is 2.30 °C, but when 74.0 g of barlum hydroxide…

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Q: Students are investigating a solvent for use in freezing point depression experiments. They measured…

A: Given : Freezing point of solvent = -12.6 oC Freezing point of solution = -18.3 oC Mass of solute…

Q: A researcher prepares a new compound and uses freezing point depression measurements to determine…

A: Given Mass of compound = 1.538 g mass of cyclohexane = 75 g  freezing point of the solution = 2.16°C…

Q: The normal boiling point of a certain liquid X is 133.8 °C, but when 65. g of urea ((NH,),CO) are…

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Q: A student dissolves 12.52 grams of magnesium iodide, MgI, (278.1 g/mol), in 271.3 grams of water.…

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Q: Calculate the freezing point (in C) of an aqueous 0.18 m sodium phosphate solution. The molal…

A: Given   The molality of sodium phosphate solution is 0.18 m. The molal freezing point of water is…

Q: The normal boiling point of a certain liquid X is 128.90 °C, but when 112. g of glycine (C,H,NO,)…

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Q: Consider a solution prepared by combining 0.398 moles of K4Fe(CN)6 with 195. g water. What is the…

A: Freezing point depression is a colligative property. It depends on the concentration of solute…

Q: (NH),CO) NH,) CO are dissolved in 600. g of X, it is found that the solution The normal freezing…

A: Normal freezing point of X, Tf° = 6.1 °C Mass of solute (urea), wB = 44.3 g Molar mass of solute…

Q: The normal freezing point of a certain liquid X is -0.40 °C, but when 5.42 g of ammonium sulfate…

A: Given: The normal freezing point of X = -0.40 oC When 5.42 g of ammonium sulfate [(NH4)2SO4] are…

Q: The molal freezing point depression constant K,=2.51 °C·kg•mol -1 for a certain substance X. When…

A: Given that:  Mass of urea = 6.12 g  Mass of X = 100.g  Kf of X solvent = 2.51°C.kgmol-1 Freezing…

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: The normal freezing point of a certain liquid X is 3.90°C, but when 12. g of potassium bromide (KBr)…

A: Upon addition of some external material the freezing point and boiling point of the compound changes…

Q: A researcher prepares a new compound and uses freezing point depression measurements to determine…

A: Given,  Mass of the compound (w) =  1.966 g Mass of cyclohexane (W) = 75.00 g Freezing point of…

Q: A certain substance X melts at a temperature of -4.3 °C. But if a 900. g sample of X is prepared…

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Q: If a substance normally freezes at 10 C and has a Kf = 5 K/m, determine the freezing point (C) for a…

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Q: The normal freezing point of a certain liquid X is 7.90 °C, but when 9.4 g of alanine (C,H,NO,) are…

A: We know that : ∆Tf = Kf*m or, Kf = ∆Tf/m  and m = 1000W2/M2W1  From these two equations, we have :…

Q: A certain liquid x has a normal freezing point of 2.90 °C and a freezing point depression constant =…

A: Given: The normal freezing point of liquid X = 2.90 oC The freezing point depression constant, Kf =…

Q: A certain substance X has a normal boiling point of 127.8 °C and a molal boiling point elevation…

A: Given that: normal boing point = 127.8 oC Kb = 1.24 oC.kg.mol-1 mass of solvent, X = 900 g mass of…

Q: Find the molality of Naphthalene/ Biphenyl Solution Mass biphenyl- 1.409 Mass of napthene…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: 1- The molal freezing point depression constant K .= 4.12 °C·kg•mol ' for a certain substance X.…

A: When a non volatile solute is added to a pure solvent its freezing point decreases. The depression…

Q: Assuming 100% dissociation, calculate the freezing point (Tf) and boiling point (Tb) of 3.27 m…

A: Given compound is K3PO4 Kf= 1.86 °C/m Kb= 0.512 °C/m

Q: The normal freezing point of a certain liquid X is -4.6 °C, but when 28.43 g of urea (NH,) CO)are…

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Q: The normal boiling point of a certain liquid X is 93.10 °C, but when 0.11 kg of iron(III) chloride…

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Q: The normal freezing point of a certain liquid x is -6.20 °C, but when 36. g of iron(III) chloride…

A: We will calculate the molal freezing point depression constant Kf. Given: The normal freezing point…

Q: When 47.9 g of glycine (C,H;NO,) are dissolved in 750. 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: The normal freezing point of a certain liquid X is -2.70 °C, but when 43.3 g of potassium bromide…

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Q: How many grams of sodium chloride (58.44 g/mol), must be dissolved in 204.0 grams of water to raise…

A: Problem is based on elevation in boiling point.

Q: The normal boiling point of a certain liquid X is 131.10°C, but when 32.9g of glycine (C2H5NO2) are…

A: Normal boiling point of liquid 'X'=131.10°C boiling point of solution (when glycine is dissolved in…

Q: The molal freezing point depression constant K,= 2.88 °C·kg mol for a certain substance X. When…

A: The molal freezing point depression constant K₁=2.88 °C-kg-mol for a certain substance X. When 4.138…

Q: A student enters the lab and determines the freezing point of pure liquid to be 39.8 ºC. A…

A: Given: Freezing point of pure liquid = 39.8 oC Freezing point solution = 36.3 oC Molal depression…

Q: A certain liquid X has a normal freezing point of 1.30 °C and a freezing point depression constant…

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Q: The normal boiling point of a certain liquid X is 115.90 °C, but when 47. g of zinc chloride (ZnCl,)…

A: Given: The normal boiling point of liquid X = 115.90 ∘C The mass of ZnCl2 dissolved in 550 g of X =…

Q: The normal boiling point of a certain liquid X is 140.50 °C, but when 32.3 g of alanine (C,H,NO,)…

A: given mass of alanine = 32.3 g boiling point of solution = 141.7°C boiling point of pure solvent =…

Q: A certain liquid X has a normal freezing point of -4.10 °C and a freezing point depression constant…

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Q: Jeneen v The normal freezing point of a certain Iliquid X is -0.50 °C, but when 36.0 g of urea…

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Q: A certain substance X melts at a temperature of -4.2 °C. But if a 600. g sample of X is prepared…

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Q: (NH,),CO) The normal freezing point of a certain liquid X is – 4.4 °C, but when 14.0 g of urea are…

A: The molal freezing point depression constant Kf of X can be calculated by using the formula as:…

Q: A certain liquid X has a normal freezing point of 4.80 °C and a freezing point depression constant…

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Q: The molal boiling point elevation constant =Kb·0.53°C·kgmol−1 for a certain substance X. When 7.3g…

A: We will calculate boiling point of pure solvent.

Q: The normal boiling point of a certain liquid X is 142.70 °C, but when 0.13 kg of barium hydroxide…

A: Here , first we will calculate the molality of solution, than Kb can be calculated. Kb  = 1.68 °C…

Q: A certain liquid x has a normal freezing point of 1.30 °C and a freezing point depression constant…

A: The depression in the freezing point is calculated by the formula: ∆Tf=mKf Where m is the molality…

Q: A solution is made by dissolving 0.646 mol of nonelectrolyte solute in 791 g of benzene. Calculate…

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Q: The normal freezing point of a certain liquid X is -6.20 °C, but when 7.45 g of benzamide (C,H,NO)…

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Q: The normal freezing point of a certain liquid X is 5.10 °C, but when 0.12 kg of alanine (C¿H,NO,)…

A: given, the mass of C3H7NO2 = 0.12kg = 0.12 ×103 g mass of solvent X = 800. g = 0.800 kg molar mass…

Q: The boiling point of water is 100.0°C at 1 atmosphere. How many grams of cobalt(II) chloride (129.8…

A: GivenBoiling point of water = 100°CMoalr mass of CoCl2 = 129.8 g/molemass of water = 250 grams =…

Q: The normal freezing point of a certain liquid X is 5.20 °C, but when 41. g of urea (CH,N,O) are…

A: Given, mass of urea (CH4N2O) dissolved = 41.0 g Mass of liquid X = 750 g = 0.750 Kg Freezing point…

Q: A certain substance X has a normal freezing point of  −8.9°C and a molal freezing point depression…

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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.