Given: Mass of lauric acid (g): 8.000g Mass of benzoic acid (g): 1.027g Freezing temperature of pure lactic acid(°C): 43.3°C Freezing point of the benzoic acid-lauric acid mixture(°C): 39.8°C   Question: Calculate molality (m,) in mol/kg, using the formula ΔTf = m × Kf. The Kf value for lauric acid is 3.9°C x kg/mol.

Q: The freezing point of ethanol, CH3CH,OH, is -117.300 °C at 1 atmosphere. KAethanol) = 1.99 °C/m In a…

A: Given: Mass of compound (solute) = 12.60 g Mass of ethanol (solvent) = 265.8 g Freezing point of…

Q: Calculate the molality of chloride ions in an aqueous solution of magnesium chloride in which the…

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Q: 29 g of KOH is dissolved in 250. mL of water. What is the mass percent of KOH in this solution?…

A: Hence you posted multiple choice questions, I will answer the first three sub questions. (1) mass of…

Q: -4 At 25.0 °C the Henry's Law constant for nitrogen trifluoride (NF, gas in water is 7.9 x 10…

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Q: 1. The solubility of L-glutamic acid (an amino acid) in water has been determined to be as follows…

A: Solubility:   When the maximum amount of solute is dissolve in the solvent is called solubility. On…

Q: Suppose that you add 25.6 g of an unknown molecular compound to 0.250 kg of benzene, which has a Kf…

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Q: How much table salt should be added to 300 g water to lower its freezing point to -2.00°C?

A: given data : Kf of water = 1.86 °C/m  Freezing point of water = 0°C  ∆Tf = 0-(-2.00) = 2.00°C  Mass…

Q: The normal freezing point of cyclohexane is 6.50 °C. A solution is prepared by dissolving 148.6 mg…

A: Given,  Normal freezing point of cyclohexane = T0f = 6.50 °C Mass of unknown nonelectrolyte (solute)…

Q: but when 17.0 g The normal freezing point of a certain liquid x is 3.90 °C, benzamide (C,H,NO) are…

A: Given: The normal freezing point of liquid X = 3.90 oC When 17.0 g of benzamide are dissolved in…

Q: 16. Consider two statements and state whether they are true or false: (1) If the enthalpy of…

A: Solvation depends on the solvation energy i.e. the change in Gibbs free energy, which expressed as…

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

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Q: A solution was prepared by dissolving solute T in 105 g benzene. The freezing point of this solution…

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Q: 6 ST4E.1 - Calculate the boiling point temperature of phenol (in the Celsius scale) if 4.3 grams of…

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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: 2. 70g of NaCl dissolves in 1kg of water at 55°C. What is the solubility in 400g of water?

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: A solution was prepared by dissolving solute T in 120 g benzene. The freezing point of this solution…

A: Given : Mass of solvent i.e benzene = 120 g = 0.120 Kg                                     (since 1…

Q: .9720 M aqueous solution of NaCl has a density of 1.03625g/cm^3 at 25 C, Calculate the molality of…

A: As per our guideline we can solve only one question at a time, please post other questions as next…

Q: What would be the freezing point of a solution prepared by dissolving 25.00 g of benzaldehyde (M =…

A: Mass of solute (Benzaldehyde) = 25 g Mol. Mass of solute = 106.1 g/mol Mass of solvent= 780g = 0.78…

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: When 397.g of benzamide C7H7NO are dissolved in 1400.g of a certain mystery liquid X, the freezing…

A: First of all we calculate the Kf of mystery liquid X using benzamide. For this purpose we use…

Q: 1 A certain liquid X has a normal freezing point of –1.00 °C and a freezing point depression…

A: Given:  Normal freezing point of X=-1.00oC Freezing point depression constantKf=2.88oCKgmol-1 Mass…

Q: [References] If we add 178 g of ethylene glycol, C,H,O2, per 1000. g of water to a car radiator,…

A: Depression in freezing point is a colligative property

Q: 1. A student determines the molar mass of methanol, CH3OH by the same method used in this…

A: Answer: This question is based on the colligative property of the solution. Colligative property of…

Q: was made by dissolving 479.32 g or aluminum AIC13) in enough water to make 500.0 solution. The…

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

A: Assuming mass of naphthalene in the mixture is y. Hence mass of pyrene = mass of mixture - mass of…

Q: The normal freezing point of a certain liquid X is 4.70°C, but when 83.g of benzamide (C7H7NO) is…

A: Colligative properties are the properties which depend on the number of atoms or molecules or ions…

Q: When 498. mg of a certain molecular compound X are dissolved in 25.0 g of dibenzyl ether…

A: A numerical problem based on properties of liquids. A set of data for depression of freezing point…

Q: Please provide detailed solution and give the explanation of the concept..

A: The freezing point of a solution is lower than that of the pure solvent. This is known as freezing…

Q: 15.2 g of camphor dissolved in naphthalene lower the freezing temperature of naphthalene from 80.0…

A: Given: Mass of camphor=15.2 g Molar mass of camphor=152 g/mol Lowered freezing point of…

Q: student determines the molar mass of methanol, CH3OH by the same method used in this experiment.…

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Q: The freezing point of a liquid will change when a solute is added. Explain how the addition of salt…

A: Given: Freezing point of water = 0.0 oC molality of CaCl2 solution = 2.80 m Van`t Hoff factor of…

Q: [References] Use the References to access important values if needed for this question. The boiling…

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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: When 11.5 g of a certain molecular compound X are dissolved in 45. g of benzene (CH), the freezing…

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Q: An aqueous zinc bromide solution (ZnBr2) boils at 100.250 °C.  What is the molality of this…

A: Given  The Boiling point of Aqueous solution ZnBr2  = 100.250 ℃  Kb  of water   = 0.512 ℃/m…

Q: 3. You are asked to calculate the Kf for t-butyl alcohol (MW = 74.122 g/mol). You gather the…

A: Given data:Determine the key information needed to calculate the The freezing point is defined as…

Q: The freezing point of pure benzene (CH) is 5.49 °C. The freezing point of a solution made using…

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Q: Use the solubility curve below to determine how much NANO3 can dissolve in 300 g of water at 10…

A: The given graph is plotted between solubility and temperature. This shows the dependence of…

Q: The freezing point of pure benzene is 5.49 °C. The freezing point of a solution made using toluene…

A: The Freezing point depression can be calculated as below:

Q: A certain liquid X has a normal freezing point of 7.00°C and a freezing point depression constant…

A: For an ideal solution containing a strong electrolyte, Raoult's law states that: ∆Tf=i.Kf.C Where:…

Q: When 171. g of benzamide (C₂H₂NO). are dissolved in 750. g of a certain mystery liquid X, the…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: The freezing point of pure benzene (CoHo) is 5.49 °C. The freezing point of a solution made using…

A: A decrease in the freezing point is a colligative property. The decrease in the freezing point is…

Q: Use the References to access important values if needed for this question. The common laboratory…

A: When we add solute in a pure liquid then vapour pressure of the solution  is decreased as compared…

Q: Use the graph to estimate the solubility of NaNO3 in water at 40 °C. * Effect of temperature on…

A: From the given graph, on the y-axis, the concentration is given in terms of g/100 g of H2O. It means…

Q: A solution of 0.890 g of an organic compound in 100.0 g of benzene has a freezing point of 5.107°C.…

A: Freezing point of pure solvent = 5.500°C  Freezing point of solution = 5.107°C  ∆ Tf = Freezing…

Q: Calculate the molality of chloride ions in an aqueous solution of magnesium chloride in which the…

A: Given,i. mole fraction of magnesium chloride =0.0700.ii. Mass of sodium hydroxide =7.00 g mass of…

Q: When 20 grams of potassium chlorate, KCIO3, is dissolved in 100 grams of water at 80 °C, the…

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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.