Calculate the molality of a solution prepared by dissolving 15 grams of ethylene glycol (HOCH2CH2OH) in 100 mL of water. Assume that the density of water is 1.00 g/mL. What is the freezing point depression of this ethylene glycol solution?

Q: 198 g of glucose (C6H12O6) is dissolved in 435 mL of water. Determine 1. Percent by mass 2. Mole…

A: Moles of solute (glucose) = given massmolar mass                               =198180…

Q: Propylene glycol, C3H6(OH)2, is sometimes used in automobile antifreeze solutions. If an aqueous…

A: Given: Mole fraction of propylene glycol = 0.10  Assuming 1 mole of solution. The moles of C3H6(OH)2…

Q: How many grams of ethylene glycol must be added to 1,000. g of water to form a solution that has a…

A: Given data mass of solvent (water) = 1000.0 g = 1.00 kg Freezing point of solution  = - 10 oC Solute…

Q: Calculate the molality of each of the following aqueous solutions: (a) 2.55 M NaCl solution (density…

A:

Q: Calculate the molality of a solution prepared by dissolving 1.50 g of sodium hydroxide (NaOH) in 112…

A: molality is one of the ways to express the concentration of solution.

Q: Calculate the molality and van't Hoff factor (i) for the following aqueous solution: 0.750 mass %…

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

Q: What is the boiling point of a solution of 1.0 g of glycerin, C3H5(OH)3, in 47.8 g of water? Assume…

A: Given: Mass of glycerin= 1.0 g  Mass of water= 47.8 g The constants are: To find: The boiling point…

Q: What is the freezing point of a solution containing 2.80 grams benzene (molar mass = 78.11 g/mol)…

A:

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

A: The molality of the solution is defined as the ratio of no of moles of solute to that of mass of…

Q: Calculate the mole fraction and molality of a solution that contains 0.850 g of ammonia, NH 3,…

A: Given that: Mass of ammonia = 0.850g  Mass of water = 125g  We know : Molar mass of NH3 = 17g/mol…

Q: Assuming ideal behavior, find the freezing point of a solution made by dissolving 13.2 g of ammonium…

A: The given data contains, mass of ammonium phosphate = 13.2 g. mass of water = 45 g.

Q: Calculate the molality of a solution containing 23.8 g of NaCI in 70.0 g of water. 2.45 x 10-4 m…

A: Answer 1 :- Given mass of KCl = 3.64 g Molar mass of KCl = 74.5513 g/mol Volume of water = 200 mL =…

Q: What is the boiling point of an aqueous solution that has a vapor pressure of 20.5 torr at 25 °C?…

A: According to Raoult’s law, the vapor pressure of the solution is lower than the vapor pressure of…

Q: An aqueous solution of hydrochloric acid contains 36% HCl by mass. (a) Calculate the mole fraction…

A: Given that mass percent of HCl is 36%. Assuming the total mass of solution as 100 g, 36 g of HCl…

Q: Calculate the freezing point of a 2.6 m aqueous sucrose solution

A: The freezing point of the given sucrose solution can be determined as follows, ΔTf = kf x m ΔTf =…

Q: Is vapor pressure of NaCl aqueous solution equal to vapor pressure of MgCl2 aqueous solution??

A: The pressure above a liquid is known as its vapor pressure. When a non-volatile solute is added to a…

Q: What is the mole fraction, X, of solute and the molality, m (or b), for an aqueous solution that is…

A: The mole fraction of a component in the mixture is defined by the ratio of moles of that substance…

Q: An aqueous solution contains 6.04 % KOH and has a density of 1.05 g cm. Calculate the concentration…

A: a.

Q: Suppose the freezing point of a solution of 2.00 g of an unknown molecular substance in 10.00 g of…

A: We know, depression in freezing point is given by  ∆Tf=Kf×mwhere ∆Tf=depression in…

Q: A 10% solution (by mass) of sucrose in water has freezing point of 269.15 K. Calculate the freezing…

A: Colligative properties explain the physical change observed on the addition of solute to solvent.…

Q: What is the vapor pressure of 1000 g of a water solution at 25 Celsius that contains 124.0 g of the…

A:

Q: 3. Calculate the freezing and boiling point of a solution prepared by dissolving 32.60 g of ferric…

A: Answers are as follows:

Q: Calculate the freezing point of a solution containing 50.0g of NaCl in 5000mL of water, Kf for water…

A: Given data: *Kf of water is 1.86 degrees C/m.  The freezing point is calculated by using the…

Q: Calculate the mass of NaCl (molar mass = 58.5 g mol-1) to be dissolved in 37.2 g of water to lower…

A: To calculate:  the mass of NaCl to be dissolved in 37.2 g of water to lower the freezing point by…

Q: Calculate the molality of NaCl in a 500 ml 20% aqueous NaCl solution whose density is 1.148 g/mL at…

A: Given data is: Density = 1.148 g/mL Molar mass of NaCl = 58.44 g/mol Calculation of molality,…

Q: When 168 mg of a certain molecular compound X are dissolved in 25.0 g of cyclohexane, the freezing…

A: Solution -

Q: Calculate the freezing point of a solution made from 72.33 g of propane, C3H3, 44.1g/mol, dissolved…

A: Given: Mass of Propane=72.33 g Mass of solvent (Water)=0.250 kg

Q: What is the melting point of a solution prepared by dissolving 25.0 g of KBr (Mm = 119.00 g/mol) in…

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: What is the freezing point of an aqueous solution that contains 1.3 moles of MgCl2 per 1 kg water?

A: The freezing point has to be calculated

Q: Calculate the following concentrations for a solution of 0.800 g of calcium chloride, Cacl2, in…

A: Weight of CaCl2 = 0.800g Weight of water = 100g Density of solution = 1 g/ml So,  Molarity = n/V(l)…

Q: Calculate the molality of a solution prepared by dissolving 50.0 g of sodium hydroxide (NaOH) in 555…

A: 50.0 g of NaOH dissolved in 555 g of water.

Q: What is the effect on vapor pressure of a solution with particularly strong solute–solvent…

A: Vapor pressure is the pressure of vapors that are in contact with its liquid form. In case of…

Q: How can we calculate freezing point depression, boiling point elevation, and osmotic pressure of…

A: Freezing point depression, boiling point elevation and osmotic pressure are the colligative…

Q: What are the mole fraction and molality of a solution that contains 0.850 g of ammonia, NH3,…

A: Given: Mass of ammonia =  0.850 g Mass of water = 125 g To find: Mole fraction? Molality?

Q: Calculate the freezing point of an acqueous solution containing 10.50 g of MgBr2 in 200 g of water.…

A: The temperature at which a liquid becomes a solid is called freezing point. Given that, Mass of…

Q: After the addition of 24 g of ethanol (CH;OH) to 1 kg of water, the freezing point of the solution…

A: ∆Tf = Kf .m  Where  ∆Tf = (T° - Ts)  Where  T° =freezing point of pure water = 273 K  Ts =freezing…

Q: molality   m mole fraction   molarity

A: 24.1 % by mass means, 100 g solution contains 24.1 g LiCl solute.  So, mass of solution = 100 g Mass…

Q: An aqueous solution is 4.00% ammonium chloride, NHĄ Cl, by mass. The density of the solution is…

A: Assuming we have 100 g of the solution  Since % by mass = mass of solute X 100 / mass of solution…

Q: What is the freezing point of an aqueous calcium sulfate solution prepared by mixing 45.0 g of…

A: The freezing point of a solution is always less than that of the pure solvent. The freezing point…

Q: What is the molality of ethanol in a solution made by dissolving 14.6 g of ethanol, C2H5OH, in 53.6…

A:

Q: Calculate the freezing point of a 1.7 m aqueous ethylene glycol solution.

A:

Q: What mass of naphthalene must be dissolved in 2.20 ×102 g of benzene to give a solution with a…

A: The required relationship is given below.

Q: What is the mole fraction, X, of solute and the molality, m (or b), for an aqueous solution that is…

A: Given: mass % of NaOH=  14% To find: i) mole fraction X =? ii) molality, m= ?? We know that, Molar…

Q: A solution contains 22.5 g of methanol , CH3OH , dissolved in sufficient water to give a total mass…

A: Molality: The mole of the solute dissolved in one kilogram of the solution is known as the molality…

Q: Calculate the molalities of the following aqueous solution: (a) 1.22 M sugar (C12H22O11) solution…

A: Given : 1.22 M solution of C12H22O11 with density = 1.12 g/mL Assuming we have 1 L of solution i.e…

Q: The density of an aqueous solution containing 15.0 percent ethanol (C2H5OH) by mass is 0.974 g/mL.…

A:

Q: The normal boiling point of methanol is 64.7°C. A solution containing a nonvolatile solute dissolved…

A: Given datas ;  At 64.7°C , Psoln = 670.0 torr  Vapour pressure of pure solvent (Methanol)  = 1.0 atm…

Q: Calculate the molality of a solution prepared by dissolving 6.98 g of sodium hydroxide (NaOH) in 134…

A: Molality (m): Molality is the number of moles of solute present in one kilogram of solvent.…

Q: A solution is made up of 86.3g ethylene glycol (C2H6O2) in 143.2g of water. Calculate the freezing…

A:

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.