A solution made by dissolving 150.0 g of an unknown compound in 375.0 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: A solution is made by dissolving 11 g glucose (molar mass = 180.2 g/mol) in 73 g of water. Calculate…

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Q: What is the lowest freezing temperature for a saltwater solution? The solubility of sodium chloride…

A: Given,  Mass of NaCl = 280 g  Molar mass of NaCl = 58.5 g/mol  Number of moles = 280/58.5 mol…

Q: Calculate the molality of a 32.3% (by mass) aqueous solution of nitric acid. Calculate the molality…

A: Molality is equal to the number of moles of solute dissolve in per kg of solvent. It is denoted by…

Q: The osmotic pressure of an aqueous solution at 309 K is 120 kPa. Calculate the freezing point of the…

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Q: Prepare a solution of NaCl by accurately weighing approximately 1.45g of NaCl into a 100 mL beaker /…

A: Molality (m)=Moles of soluteMass of solvent in kg mol/kg Mass of NaCl added=1.45gMolar mass of…

Q: Normal saline is a mixture of NaCl in sterile water. Its concentration is 0.900% (g/mL) and mimics…

A: Molarity and molality are concentration terms which tells about the amount of solute present in the…

Q: Calculate the molality of saturated aqueous sodium chloride (58.443 g/mol). A saturated solution…

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Q: A solution was prepared by dissolving 11.0 g of compound in 270.0 g of ethanol raising the boiling…

A: Given data, mass of compound= 11.0 g  mass of ethanol = 270.0 g = 0.270 Kg  (but no need of that…

Q: A solution is prepared by dissolving 32.5 g of glucose (180.156 g/mol) in 593. g of water (18.015…

A: Given mass of Glucose = 32.5 gram Molar mass of Glucose = 180.156 g/mol Moles of Glucose =…

Q: Determine the molality of a solution prepared by dissolving 75g of Ba(NO3)2(s) in 374g of water at…

A: Given that: mass of  Ba(NO3)2(s) = 75 g  mass of water = 374 g  To find: molality of a solution?

Q: particular solvent has a freezing point depression constant of 4.16(deg. C/m), what is the molality…

A: Freezing point of solvent is greater than freezing point of solutions

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

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Q: 1. Calculate the mass percentage of Fe in a piece of metal with 87.9 g of Fe in a 113 g sample. 2.…

A: Given: 1. Mass of Fe = 87.9 g Mass of sample = 113 g 2.Mass of glucose = 50g Mass of water = 100g

Q: Calculate the freezing point of a solution that contains 68.0 g of sucrose (C12H22O11) in 90. g of…

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Q: What is the freezing point of an aqueous solution that contains 3 moles of the ionic solute CaCl2…

A: Depression in the freezing point is the colligative property in which the freezing point of a…

Q: solution is made using 273.3 mL of methanol (density 0.792 g/mL) and 300.0 mL of water (density…

A: Density is defined as the mass per unit volume. It is represented by rho . Its relation is as…

Q: What is the molality of an aqueous solution that is 10.0% ethanol, C2H5OH, by mass? Select one: a.…

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Q: 500 g of anitifreeze, C2H6O2, is mixed with 750 g of water, H2O.  What is the freezing point of the…

A: Mass of antifreeze, C2H6O2 = 500 g Mass of water = 750 g Molecular weight of C2H6O2 = 62.07 g/mol…

Q: What is the molality of a solution prepared by dissolving 80.2  g of ethylene glycol, HOCH2CH2OH, in…

A: We have to calculate molality of solution. For this we have to first determined mass of solvent ie…

Q: calculate the freezing point of an aqueous solution with 412 g of sucrose (C12H22O11) per kilogram…

A: The depression of freezing point is a colligative property which depends upon the concentration of…

Q: Calculate the molality of a solution that contains 81.2 g of naphthalene, C10H8 , in 500. mL of…

A: given, the mass of naphthalene = 81.2g the volume of carbon tetrachloride = 500. mL the density of…

Q: Determine the molality  of a solution in which 11.5 grams of glucose C6H12O6 are dissolved in…

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Q: A student dissolves 6.8 g of styrene (CH) in 250. mL of a solvent with a density of 0.89 g/mL. The…

A: The mass of styrene is = 6.8 g The volume of the solvent is = 250. mL The volume of the solution is…

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

A: Depression in freezing point of solution = Freezing point of pure solvent – freezing point of…

Q: What is the molality of a solution with 94.3 g of glucose (molar mass 180.16 g/mol) in 236 g of…

A: The number of moles of a substance is given as the mass of the substance upon its molar mass. The…

Q: sulfuric acid (H2SO4 d=1.83g/mL) aqueous solution having 5.8321 Molar Concentration with a density…

A: Given-> Molarity = 5.8321 M density of solution= 1.33 gm/mole

Q: What is the molality of a solution with 4.5 g of KCl in 345 g of water? A) 0.17 m B) none C) 1.3 m…

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Q: 5. Calculate the molal concentration of a solution that contains 18 g of sodium hydroxide in 100 ml…

A: Answer:- These questions are answered by using the simple concept of calculation of concentration in…

Q: Which of the following is the solution concentration expressed in terms of molality? 10 g of solute…

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

A: Since sucrose is a non electrolyte  Hence the i = Van't Hoff factor = number of ions produced by the…

Q: Determine the molality of a solution in which 11.5 grams of glucose C6H12O6 are dissolved in…

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Q: What mass of ethylene glycol (C2H6O2), molar mass 62.1 g/mol), the main component of antifreeze,…

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Q: A solution is made using 128.3 mL of acetonitrile (density 0.7766 g/mL) and 250.0 mL of water…

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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: What molality (m) will a solution have that was prepared by mixing 220 grams of NaOH in 1200 ml of…

A: Molality (m) of a solution is defined as the number of moles of a solute dissolved in per kilogram…

Q: A solution contains 4.80 g of glucose (C6H12O6), in 90.0 g of water. The molality of the solution is…

A:

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: What is the freezing point of an aqueous 1.78 m CaCl2 solution? (Kf for water is 1.858°C/m.)

A: Freezing point of water , T°f = 0°C   Now, molality of solution is,m= 1.78m Kf for water is…

Q: Calculate the molality of a solution containing 5 g of the nonelectrolyte glucose (C6H12O6) in 0.400…

A: Molality is the ratio of moles of solute to mass of solvent in kiligram.

Q: An aqueous antifreeze solution is 20.4 % ethylene glycol (C2H6O2) by mass. Find the molality of the…

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Q: The solubility of some unknown chemical at 82 degrees is 305.9g/104.4g H2O. How much of this…

A: Solubility of unknown Chemical = 305.9 g/ 104.4 gAmount of water taken = 207.5 gAmount dissoved in…

Q: A solution contains 68.4 g of sucrose (C12H22O11) dissolved in 250 g of water. What is the molality…

A: Given, Mass of sucrose = 68.4 gram Moles of sucrose = Given MassMolar MassMolar mass = 342.3…

Q: What is the molality of a solution containing 75.5 g sucrose in 400 g water? Show your solution.

A: Given: Mass of sucrose is 75.5 g. Mass of water is 400 g. To find: Molality of solution.

Q: Given an intravenous solution, dextrose 10% in water, which contains 10.0 g dextrose monohydrate…

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Q: An aqueous solution containing 275.9 g of sucrose [C12H22O11] per liter has a density of 1.104 g/ml.…

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

Q: Calculate the freezing point of a solution containing 1.25 g of benzene in 100 g of chloroform

A: Solution is made up of two components which are solute and solvent. Solute is present in the minor…

Q: A solution is prepared at 28°C and its concentration is expressed in three different units: percent…

A: Concentration is the amount of solute which can be dissolved in specific amount of solvent or…

Q: What would be the theoretical freezing point of a solution made by dissolving 5.052 g of CuCl 2 in…

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Q: A 2.039 mass % aqueous solution of potassium hydroxide has a density of 1.05 g/mL. Calculate the…

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Q: Determine the molality and molarity of a sodium chloride solution prepared by adding 37.60 g of…

A: A) Molality is defined as the moles of solute present per Kg of solvent  => molality = moles of…

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.