1. A solution made by dissolving 150.0 g of an unknown compound in 330.0 mL of benzene to make a solution which has a freezing point 18.6 °C lower than that of pure benzene. Kf for benzene is 5.12 °C/m and the density of benzene is 0.877 g/mL. What was the molality of the solution

Q: The freezing point of pure benzene (C₆H₆) is 5.49 °C. The freezing point of a solution made using…

A: Pure benzene (solvent) freezing point = Tp = 5.49 °C Freezing point of Solution = Ts = -13.0 °C Kf…

Q: What is the molality of a solution in which 12 g of NaCl is dissolved in 19 Kg of water?

A: Molality: It is the amount of solute that is present per kilogram of a solution. In mathematical…

Q: A solution made by dissolving 150.0 g of an unknown compound in 370.0 mL of benzene to make a…

A: An unknown compound is dissolved in the benzene to make a solution. The mass of the unknown…

Q: Calculate the freezing point of a solution containing 0.135 mol of a nonionic solute in 2.50 kg of…

A: When a non volatile solute is added to pure solvent then its freezing point decreases If Tf° is…

Q: What is the molality of a solution prepared by dissolving 15.1 g of potassium nitrate in 250. g of…

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Q: if kf for water is 1.86°C/m, what is the freezing point of an aqueous solution of Sodium chloride…

A:

Q: What is the molality of a solution of calcium chloride that has a freezing point of -4.56 degrees…

A: Given,Freezing point of calcium chloride solution = - 4.56 °CKf = 1.86 °C kgmolRequired,…

Q: A solution made by dissolving 150.0 g of an unknown compound in 425.0 mL of benzene to make a…

A: The volume of benzene = 425 mL. Density of benzene = 0.877 g/mL The mass of the solvent =  425 g/mL…

Q: 6.) Calculate the molality of the solution (m) Use the equation: Tf (solution) – Tf (solvent) = –i…

A: Molality = number of moles of solute ÷ mass of solvent in kg

Q: What is the molality of a solution made by dissolving 26.3 g of C6H12O6 into 125.0 ml of water?…

A: Answer:- This question is answered by using the simple concept of calculation of molality using the…

Q: Determine the molality of a solution in which 1.3 grams of sucrose C12H22011 are dissolved in…

A: We have to calculate the molality of the solution.

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 solution was prepared by dissolving 12.0 g of glucose (180 g/mol) in 150. mL solution. What is the…

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Q: 2.A solution that contains 12.6 g of a nonvolatile nondissociating solute in 400. g of benzene…

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Q: 0.60 grams of a non electrolyte was dissolved in a total of 12.0 mL of water. The osmotic pressure…

A:

Q: Ethanol has a Kb of 1.22 °C/m and usually boils at 78.4 °C. How many mol of an nonionizing solute…

A: Elevation in boiling point  is a colligative property.  ∆Tb=Kb. Molality  ∆Tb= elevation in boiling…

Q: Thyroxine, an important hormone that controls the rate of metabolism in the body, can be isolated…

A:

Q: An aqueous solution is prepared by dissolving 72.0 g glucose (180.18 g/mol) in enough 1. water to…

A: Number of moles of glucose (solute) is calculated as follows,

Q: A student dissolves 11. g of aniline (C,H,NH,) in 250. mL of a solvent with a density of 1.12 g/mL.…

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

Q: 100 mL of water are being added into a beaker containing 200 mL of 1.0 M KNO3 aqueous solution.…

A: Answer:To dilute a solution water is gradually added in it and this added water only changes the…

Q: A 0.194-g sample of a nonvolatile solid solute dissolves in 9.82 g of cyclohexane. The change in the…

A: The question is based on the concept of solutions. depression is freezing point is a colligative…

Q: Calculate the molality of a solution formed by adding 5.60 g NH4Cl5.60 g NH4Cl to 12.4 g12.4 g of…

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Q: Determine the boiling point of a solution which contains 0.21 mol of sucrose in 98 g of water. (For…

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Q: A solution made by dissolving 150.0 g of an unknown compound in 440.0 mL of benzene to make a…

A: Molality ( m ) : - molality is defined as the number of moles of solute present in one Kg of…

Q: Which colligative property of solutions listed below is correctly stated? 1. The freezing point of a…

A: we need to identify the true statements based on colligative properties of solutions

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: Calculate the molality of a solution formed by adding 9.60 g NH,Cl to 13.0 g of water. molality:…

A: We know that, molality = moles solute / kg solvent

Q: Calculate the molality of the following aqueous solutions

A: A)    2.90 Molar solution means  there are 2.90 moles of  NaCl salt in 1 Liter.  Molecular weight of…

Q: A scientist, experimenting with liquid X, adds enough sucrose (non-volatile, non-electrolyte) to…

A: ★ Answer : 150.61 g of glucose is needed. ★ Solution :

Q: The freezing point of an aqueous solution containing a non electrolyte solute is -2.79 degree…

A: On adding a non-electrolyte solute in a solution there is depression in the freezing point and…

Q: 9. What is the molality of a solution of 34.0 g of acetone (CH3COCH3) in 300.0 mL water (mw of…

A:

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: 14. How many grams of potassium hydroxide are needed to make 600.0mL of 0.450M potassium hydroxide…

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

Q: Your pure water boils at 100.00 C. You add some sugar into it and now it boils at 101.20C. What is…

A: Given,  Boiling point of pure water, Tb° = 100.00 °C  Boiling point of solution, Tb = 101.20 °C  Kb…

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.