A (non-aqueous) solution is found to have a molality of 2.09 molal and experiences a freezing point depression of 7.10 degrees C. What is the Kf of the solvent (in degrees C/m)? HINT: Non-aqueous solutions do not tend to split into ions.

Q: The molality concentraion of a solution can be described as  - the moles of solute per liter of…

A: Molarity is defined as the moles of solute per litre of a solution. Molarity is also known as the…

Q: A solution is prepared by dissolving 65.4 g of sucrose (C12H22011) in 518.1 mL of water. Calculate…

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Q: A ‍aluminum sulfide solution at 23∘C has an osmotic pressure of 19 atm and a density of 1.218 g/mL.…

A:

Q: Given kf for water is 1.86 K/m. What would be the expected change in freezing point for a aqueous…

A: Kf = 1.86 K/m  Molality (m) = 0.5 m Van't Hoff factor = 1  Change in freezing point (∆Tf) = ?

Q: The normal freezing point of a certain liquid X is -2.7 °C, but when 12.2 g of urea ((NH,),CO) are…

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Q: An aqueous solution is 0.120 molal glucose. What is the mole fraction of each component in the…

A: Given  molarity = 0.120m of glucose, C6H12O6 Calculating mole component is as follows

Q: The molality of a KMNO4 solution is 0.933 at 25°C. What is the mole fraction of potassium…

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Q: When 14.0 g of non-electrolyte were dissolved in 420 g of water (K 1.86°C/m), the resulting solution…

A: Freezing point: It is the temperature at which any liquid start to freeze. Depression in freezing…

Q: The measured boiling point for a saturated solution of sodium chloride dissolved in methanol is…

A:

Q: Compute for the molarity (M), molality (m) and normality (N ) of the following solutions. a. 2.50…

A: Given,  Compute for the molarity (M), molality (m) and normality (N ) of the following solutions. If…

Q: A solution containing 10.0 g of an unknown liquid and 90.0 g water has a freezing point of -3.33 °C.…

A: When talking about colligative properties, the magnitude of the freezing point depression can be…

Q: Calculate the new boiling point of a solution containing 5.27 g of sucrose (C12H22011) and 45 q of…

A:

Q: A student dissolves 3.7 g of glucose (C,H,0) in 100. mL of a solvent with a density of 0.87 giml.…

A: Given: The given mass of glucose,(Wb)=3.7 g The molar mass of solvent, (Mb)=180 g/mol. The volume of…

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

A:

Q: At equal concentratoins, would a nonelectrolyte solution or electrolyte containing solution have a…

A: A solution containing an electrolyte will have a lower freezing point. The depression in freezing…

Q: Sodium hydroxide (NaOH) has a lattice energy of -887 kJ/mol and a heat of hydration of -932…

A: The heat of solution is given as:

Q: At what temperature (in °C) would a 0.00550 M solution of glucose in water exhibit an osmotic…

A: By using relation of osmotic pressure, π= cRT where π is osmotic pressure.

Q: n aqueous solution of concentrated nitric acid (HNO3) is 70.0% by mass. What is molality of this…

A: Molality is a property of a solution and is defined as the number of moles of solute per kilogram of…

Q: An aqueous solution is 10.% glucose by mass (d=1.039 g/mL at 20°C). Calculate its freezing point,…

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Q: aqueous solution is 21.9%. What is the molality of the ethanol solution?

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Q: 50 grams of water containing a certain amount of sucrose boils at 100.77 C. What is the molal…

A: Colligative properties are the properties of a solution that depends on the number of solute…

Q: A solution is prepared by dissolving 4.00 g of NaOH in 100.00 g of water. The volume of the…

A: Given data  mass of NaOH added = 4.00 g mass of water used = 100.00 g Volume of solution = 102.00 mL…

Q: A 31.9 g sample of a K2SO4 dissolves in 180. g of water. If the Kf  (H2O) = 1.86 oC/molal.  What is…

A: Depression in freezing point is given by  depression in freezing point = Kf X m X i  where m =…

Q: At what temperature (in °C) would a 0.00530 M solution of glucose in water exhibit an osmotic…

A: Osmosis is the phenomenon in which the solvent flows from low concentration solution to high…

Q: Calculate the boiling and freezing points of 0.221 mol/kg aqueous solutions of NaCl and of CaCl2.…

A: Given data,molality of NaCl=0.221mol/Kgmolality of…

Q: A certain substance X melts at a temperature of -5.5 °C. But if a 600. g sample of X is prepared…

A: Depression in freezing point, ∆T = m × Kf

Q: The mole fraction of ethanol in water is 0.3 calculate the molality os solution and the mass percent…

A: mole fraction of ethanol=0.3 therefore mole fraction of water=1-0.3=0.7

Q: The normal boiling point of a certain liquid X is 94.4 °C, but when 43.17 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: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When…

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Q: The density of an aqueous solution  containing 10%(w/w) of ethanol is 0.985g/ml. Calculate the…

A: Given, Density of ethanol solution = 0.985 g/mL % of ethanol in the solution = 10 % (w/w)

Q: An aqueous solution is prepared by dissolving 0.050 mole of formic acid, HCOOH, in 1.00 kg of water.…

A: Given, Moles of formic acid (n) = 0.050 mol Mass of water (W) = 1 kg Freezing point of solution (T)…

Q: What molality of NaCl is required to increase the boiling point of 500 g of water to 105°C? (K, is…

A: Given: The boiling point of the solution = 105°C Mass of water = 500 g Standard data: Kb for…

Q: The normal bolling point of a certain liquid X is 114.70 °C, but when 58.3 g of barlum hydroxide…

A: Given: Normal boiling point of liquid X = 114.70 oC. Mass of Ba(OH)2 dissolved = 58.3 g. Mass of…

Q: Magnesium bromide, MgBr2, has a lattice energy, AHjattice, of -2406.0 kJ/mol and a heat of…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: A solution is made up by dissolving 15.0 g MgSO4· 7H2O in 140.0 g of water. What is the molality of…

A: Since molar mass of solute i.e MgSO4.7H2O = Atomic mass of Mg + Atomic mass of S + Atomic mass of O…

Q: Polyvinyl alcohol is a water soluble polymer with an average molar mass of 28,000. You dissolve…

A: Osmotic Pressure (π) = 1095.69 Bar

Q: an aqueous solution of ethanol, C2H5OH, is 19% ethanol by mass and has a density of 0.97 g ml ^-1.…

A: Assuming 1 L i.e 1000 mL of solution. Given : Mass percent of ethanol = 19 % And density of solution…

Q: The normal boiling point of a certain liquid X is 124.9 °C, but when 31. g of urea (NH),CO)- are…

A: Given :- Normal boiling point of X = 124.9°C  Mass of urea = 31. g  Mass of X = 350. g  Boiling…

Q: At what temperature (in °C) would a 0.00450 M solution of glucose in water exhibit an osmotic…

A: Given : Concentration of glucose solution = 0.00450 M And Osmotic pressure of solution = 0.150 atm

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: Sulfuric acid in water dissociates completely into H+ and HSO4 - ions. The HSO4 - ion dissociates to…

A: Given, molality (m) of H2SO4 = 0.1000 m            freezing point of solution = 272.76 K = (272.76 -…

Q: Consider a solution of MgCl2(aq) with a molality of 0.00245 mol kg-1 Calculate the freezing point of…

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Q: An aqueous solution is 1.00% by mass ethanol, CH3CH2OH, and has a density of 0.996 g/mL. The…

A: Given, an aqueous solution is 1.00 % by mass ethanol.has a density of 0.996 g/mLwe are asked to…

Q: The freezing point of a 0.01 m aqueous solution of a nonvolatile electrolyte is -0.0720C. What is…

A: The freezing point, Tf , of 0.01 m solution is -0.072o C. As the solution is aqueous, that is the…

Q: The normal boiling point of a certain liquid X is 121.00 °C, but when 0.12 kg of benzamide (C,H,NO)…

A: When a solute is added to a solvent, the boiling point of the solvent increases. The boiling point…

Q: A (non-aqueous) solution is found to have a molality of 2.33 molal and experiences a freezing point…

A: The freezing point depression constant (Kf) for a solvent, it is to be determined from the given…

Q: A 10.00% by mass solution of ethanol (C2H5OH), in water has a density of 0.9831 g/mL at 15 celsius…

A: We have Molarity = Moles of solute/Volume of solution (L) We know that, moles= mass/molar mass And…

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.