A solution of an unknown non-dissociating solute was prepared by dissolving 0.300 g of the substance in 40.0 g of CCl4. The boiling point of the solution was 0.357 °C higher than that of the pure solvent. Calculate the molar mass of the solute. Kb=5.02 °C/m

Q: Determine the molal concentration of a sugar solution in water that has a freezing point of –2.1°C.…

A: Given information,    Freezing point = –2.1°C    Value of Kf = 1.86°C/m for water

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

A: To solve this problem we will use the formula of molality

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

A:

Q: Calculate the vapor pressure at 25 °C of a solution containing 99.5 g sucrose (C12H22O11) and 300.0…

A: Given,

Q: Calculate the molality of a 0.410 molar aqueous glucose solution whose density is 1.15 g/mol

A:

Q: If through a freezing point depression experiment it was determined that the molality of a solution…

A: mass of Covalent Solid = 7.50 gMass of Solvent = 0.100 kgMolality = 0.122 molalMolar mass of…

Q: Calculate the mass of compound (molar mass = 256 g mol-1) to be dissolved in 75 g of benzene to…

A: According to colligative properties, the depression in freezing point is given as - ΔTf = Kf * m…

Q: 1. Estimate the freezing and normal boiling points of 0.25 m aqueous solutions of NH4NO3 and NiCl3

A: Any solution's "boiling point (Tb)", as well as "freezing point(Tf)", is directly related to the…

Q: alculate the molality of a 0.898 M ethanol (C2H5OHC2H5OH) solution whose density is 0.429 g/ml.

A: Molality(m):It is defined as number of mole of solute dissolved in per  kilogram of solvent.…

Q: A 100. mL aqueous solution prepared by dissolving 25.0 g of a non-electrolyte solute had a freezing…

A: Given :  Kf = 1.86 °C/m  Freezing point of solution (Tf) = -1.26 °C  Mass of solute = 25.0 gm…

Q: Calculate the osmotic pressure of a 8.1 × 10 2 M solution of NaCl at 25°C (298 K). 2.06

A: Osmotic pressure can be calculated by the following formula. π=cRTπ=osmotic…

Q: Use the following information to calculate the molar mass of the unknown Mass of unknown solute =…

A: The relation between depression in freezing point and molality of a solution is given as follows;…

Q: 8.) Calculate the mole fraction of the solute in the solution prepared by allowing 12.9 g of toluene…

A: mass of solute i.e. toluene =12.9 g Molar mass of toulene = 92.14g/mol No. Of moles of solute ,na…

Q: What is the osmotic pressure of a 0.0540 M aqueous sodium sulfate (Na2SO4, MW = 142.04 g/mol)…

A: Convert unit of temperature into Kelvin:

Q: After the addition of 24 g of ethanol (C2H5OH) to 1 kg of water, the freezing point of the solution…

A: Cryoscopic constant: It is the freezing point depression that is produced when the one mole of the…

Q: Common commercials acids and bases are aqueous solutions with the following properties:…

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: Choose the solvent below that would show the greatest boiling point elevation when used to make a…

A: here given molarity of solution = 0.10 m using formula ∆Tb = Kb.m

Q: Calculate the freezing point of a solution prepared by dissolving 3.17 g Ca(ClO3)2 in 452.6 g H2O.

A: When a solute added to solvent it's freezing point decrease

Q: 1.812 grams of an unknown compound is dissolved into 77.7 grams of benzene, an organic solvent with…

A:

Q: Calculate the freezing point of a solution containing 0.600 kg of CHCl3 and 42.0 g of eucalyptol…

A: Given data is as follows: The mass of solvent CHCl3 0.600 kg = 600 g The mass of solute C10H18O =…

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: A solution is prepared by mixing 1.00 g of ethanol (C2H5OH) with 100.00 g of water to give a final…

A: In order to calculate the molarity and the mole fraction we first write down the given data: Mass of…

Q: Calculate the molality of a solution that is prepared by mixing 25.5 mL of CH3OH (d = 0.792 g/mL)…

A: The answer is given as follows

Q: Aqueous ethanol solutions are prepared by mixing measured weights of assayed ethanol and…

A:

Q: The freezing point of a solution prepared by dissolving 126.3 mg of caffeine in 10.0 g of camphor is…

A: A numerical problem based on colligative properties, which is to be accomplished.

Q: Glacial acetic acid is purchased as 99.5% (w/w) HC2H3O2 with a solution density of 1.05 g/mL.…

A: given, density of solution = 1.05 g/ml % w/w = 99.5%  molarity =?

Q: What molality of a nonvolatile, nonelectrolyte solute is needed to raise the boiling point of water…

A:

Q: The concentration in molality of HCI in a solution that is prepared by dissolving 5.5 g of HCI in…

A: The concentration of HCl solution can be calculated as

Q: Calculate the osmotic pressure of a 1 M aqueous solution of a non-dissociated solute at 20 °C.

A: Given that: Concentration(C) = 1M Temperature(T) = 20°C = 20°C + 273 = 293K

Q: A solution of 1.51 g of a non-dissociating solute in 250.0 g of water is observed to boil at 124.3…

A: Depression in boiling point ( ΔTb ) is given by,  ΔTb  = Kb × i × m   Kb  =  Boiling point constant…

Q: In an organic chemistry lab, some camphor crystals were synthesized but there were some traces of…

A: We know that, ∆Tf = Kf × m where ∆Tf  is the freezing point depression, Kf is freezing point…

Q: Calculate the freezing point of a solution containing 109 gg FeCl3FeCl3 in 171 gg water.

A: Given: weight of solute (FeCl3),  w =109g we know thta, Molecular weight of solute (FeCl3), W=162.2g…

Q: Calculate the molality of a solution that is prepared by mixing 25.5 mL of CH 3OH (d= 0.792 g/mL)…

A: Given: volume of CH3OH = 25.5 mL density of CH3OH = 0.792 g/mL volume of CH3CH2CH2OH = 387 mL…

Q: HCl and NH3 react to form a white solid, NH4Cl. If cotton plugs saturated with aqueous solutions of…

A: HCl and NH3 forms NH4Cl.  Taking aqueous solution of HCl and NH4OH, HCl and NH3 gases are released…

Q: Determine the molality of an aqueous solution prepared by dissolving 0.285 moles of LiCl (MW=42.39…

A:

Q: What is the boiling point and freezing point of the solutions? Kb=0.512C*Kg Kf=1.186C*hg 1) 58.5…

A: Depression in freezing point and elevation in boiling point are both colligative properties. They…

Q: Henry’s law constant (KH) for the solution of methane in benzene at 298 K is 4.27 X 105 mmHg.…

A: Henry's law state that the pressure of a gas over a solution is directly proportional to the mole…

Q: The molecular weight of an organic compound was determined by measuring the freezing point…

A: The equation that explains the relationship between freezing point depression and molality is:

Q: What is molality of a solution prepared by dissolving 20g MgCl2 in 250 g water?

A: We have to calculate the molality of solution.

Q: Calculate the freezing point of 10% MgCl2 solution (MWMgCl2 = 95.3, kf = 1.86 kg C / mol)

A: 1) Molality of solution  10% MgCl2 solution  10 g MgCl2 dissolved in 100 g solution  mass of MgCl2…

Q: The mole fraction of potassium nitrite (KNO2) in a solution is 0.0194. The solution density is…

A: Solution                            Given that  Mole fraction of potassium nitrite = 0.0194…

Q: What will be the normality of a solution obtained by mixing 0.45 N and 0.60 N NaOH in the ratio 2: 1…

A: Given information: Normality (N1) = 0.45 N Normality (N2) = 0.60 N V1 = 2 V2 = 1

Q: Calculate the average partial molar volume (in cm³/mol) of MgSO4 in the interval [0.1, 0.2] mol of…

A:

Q: An aqueous solution is made by dissolving 10.5 g of a non-electrolyte solute into 79.2 g of water.…

A:

Q: A solution is prepared by dissolving 10 g of non-volatile solute in 200 g of water. It has a vapour…

A: Decrease in the vapor pressure of solution by addition of a nonvolatile solute is known as vapor…

Q: A 0.9720 M aqueous solution of NaCl has a density of 1.03625 g/cm3 at 25 °C, Calculate the molality…

A:

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…

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.