Example (6): Find the molar conductivity of aque ous solutions of LiCl and MgC at infinite dilution at a temperature of 25°C

Q: Estimate the freezing point of 200 cm³ of water sweetened by the addition of 2.5 g of sucrose. Treat…

A: Given : Mass of sucrose i.e C12H22O11 = 2.5 g And volume of water = 200 cm3 = 200 mL…

Q: In the determination of molar mass of an unknown substance by ebullioscopic constant, 30 mL of…

A: Given data Volume of acetone = 30 mL Mass of unknown sample dissolved = 1.60 g Boiling point of…

Q: Calculate the Gibbs energy, entropy, and enthalpy of mixing when 0.50 mol C6H14 (hexane) is mixed…

A: The mole fraction of hexane and heptane is calculated as shown below. The mole fraction of hexane is…

Q: Two liquids, A and B, show partial miscibility below 52.4 °C. The critical concentration at the…

A: It is given that A and B show partial miscibility below 52.4oC. The critical concentration of A in…

Q: In the determination of molar mass of an unknown substance by ebullioscopic constant, 30 mL of…

A: Given: Volume of acetone = 30mL Density of acetone=0.9849 g/mL Mass of unknown sample dissolved =…

Q: In the determination of molar mass of an unknown substance by ebullioscopic constant, 30 mL of…

A: Given  volume of acetone = 30 mL  initial temperature = 56o C  temperature after mixing = 56.68o C…

Q: does the boiling point of liquid solution independent of its composition (yes or no?)

A: To explain: does the boiling point of a liquid solution independent of its composition.

Q: Measurement of which colligative property is preferred for determination of molar mass of…

A: The colligative properties are those properties of solution which depends upon number of solute…

Q: At 25 °C, the mass density of a 50 per cent by mass ethanol–water solution is 0.914 g cm−3. Given…

A: Mass of ethanol present in 100 g of solution = 50 g Mass of water present in 100 g of solution = 50…

Q: 9. The saturated vapor pressure of solid benzene is 3.27 kPa at 293.2 K, AvapHm of liquid benzene is…

A:

Q: as follows to the molality of the solution (m2): V = 1001.38+16.6253m, + 1.7738m + 0.1194m; (V in…

A: The given equation is V=1001.38+16.6253m2+1.7738m23/2+0.1194m22 The partial molar volume of NaCl can…

Q: P5B.1 Potassium fluoride is very soluble in glacial acetic acid (ethanoic acid) and the solutions…

A: The expression for depression in freezing point is, Another expression for depression in freezing…

Q: n the determination of molar mass of an unknown substance by ebullioscopic constant, 30 mL of…

A: The increase in boiling point when a solute added  is determined by the number of solute molecules…

Q: Figure 1 shows the phase diagram for two partially miscible liquids , which can be taken to be that…

A: Consider point b3. At b3, there are two partially miscible liquids at equilibrium with compositions…

Q: A 100.0 mL solution of 0.0050 M copper(Il) nitrate exhibits a conductivity of 1251 uS/cm at 25 C.…

A: The molar conductivity is the conductance of all the ions produced by one mole of the electrolyte.…

Q: In the determination of molar mass of an unknown substance by ebullioscopic constant, 30 mL of…

A: Elevation in boiling point is the difference in the boiling point of the solution and the boiling…

Q: The molar conductivity at infinite dilution in case of NaBr, HBr and NaAc are 116.4, 415.9 and 81.0,…

A: Given data is as follows: The molar conductivity at infinite dilution of NaBr = 116.4 Scm2mol-1 The…

Q: In the determination of molar mass of an unknown substance by ebullioscopic constant, 30 mL of…

A: Given Details: volume -30ml The boiling temperature of acetone (pure solvent) = 56°C The boiling…

Q: In the determination of molar mass of an unknown substance by ebullioscopic constant, 30 mL of…

A: We have , boiling temperature of acetone (pure solvent) = 56°C Boiling temperature of solution =…

Q: Polyethylene glycol 400 (PEG400) is a nonvolatile liquid polymer, which when mixed with water canbe…

A: Molality of solution is determined as follows,

Q: Calculate the boiling point (Tbp) of an aqueous solution that is 2.222molal sucrose(aq)under…

A:

Q: In the determination of molar mass of an unknown substance by ebullioscopic constant, 30 mL of…

A: Given data: Volume of acetone = 30 mL Density of acetone = 0.9849 g/mL So, Mass of acetone = Density…

Q: Assuming 100% dissociation, calculate the freezing point (T;) and boiling point (T, ) of 2.04 m…

A: Here,both property is colligative property 1.Elevation in Boiling point 2.Depressing in Freezing…

Q: At 25°C, 0.45 mol of the non-volatile solute glucose (C6H12O6) is added to 500g of water. At 25°C,…

A:

Q: laced in a test tube with thermometer and glass tubing and subjected to water bath. Upon boiling,…

A: when a solute is added to solvent, the boiling point of solution increases.It is so because, the…

Q: The vapour pressure of pyridine is 50.0 kPa at 365.7 K and the normal boiling point is 388.4 K. What…

A: The Clapeyron equation is exact and applies rigorously to all first-order phase transitions. Its…

Q: Use the data and formula below to test the validity of the equation (7) for the two binary systems…

A: Viscosity is defined as the liquid’s resistance to flow. It is another type of bulk property.

Q: Q: The solubility of hydrogen in water is expressed according to as = 6.8 xlo" Henry's law 6.8x10 X…

A: According to Dalton's law     Y = PAPWhere  Y = mole fraction in gas phase              PA = partial…

Q: 0.2 molal aqueous solution of an electrolyte A,B is 90% ionised. The boiling point of the solution…

A: Given: The molality of the solution = 0.2 m Kb for water = 0.52 K kg mol-1 The boiling point of…

Q: 2. Calculate the boiling point elevation of an aqueous solution containing 36 grams of sucrose…

A: Given Mass of sucrose = 36 g Molar mass of sucrose = 342 g Mass of water = 250 g = 0.25 kg consatnt…

Q: How many moles of solute is present in the solution? Molality of the solution?

A: The boiling point elevation is the colligative property. The boiling point elevation is directly…

Q: Calculate the mole fraction of urea CO(NH2)2 in water at 25oC for a solution  containing 20 moles of…

A: Calculate the mole fraction of urea in water at 25°C for a solution containing 20 moles of urea/kg…

Q: State Kohlrausch law of independent migration of ions. Why does the conductivity of a solution…

A: Kohlrausch law of independent migration of ions is introduced by the German chemist Friedrich…

Q: Approximating a red blood cell as a sphere, calculate the red blood cell diffusion coefficient in…

A: We have to find diffusion coefficient

Q: The partial molar volumes of water and ethanol in a solution with xH2O=0.45 at 25 ∘C are 17.0 and…

A: In a mixture containing two miscible liquids, the partial molar volume refers to the contribution…

Q: An aqueous solution containing 4% nonvolatile solute exerts a pressure of 1.002 bar at the normal…

A:

Q: The osmotic pressure of a solution of polystyrene in toluene (methylbenzene) was measured at 25 °C…

A: The pressure which is applied to a solution to stop the inward flow of pure solvent through semi…

Q: What is the effect of addition of non-electrolytes in the conductivity of a solution?

A: An electrolyte is a substances which completely dissociate into ions such as salts like NaCl, KCl…

Q: How many phases and component are present in (a) homogeneous system (b) an  aqueous solution of salt…

A: A question based on phase diagram that is to be accomplished.

Q: n the determination of molar mass of an unknown substance by ebullioscopic constant, 30 mL of…

A:

Q: Vapor pressure of mixture of immiscible liquids depend on its molar ratio .a) true b) false

A: In a mixture, when 2 immiscible liquids are present then the total vapor pressure of the mixture is…

Q: Consider the following two temperature vs composition phase diagrams of two ideal binary mixtures -…

A: The phase diagram is the graphical representation of the liquid, vapour, and solid phases that…

Q: The osmotic pressure of a solution of polystyrene in toluene (methylbenzene} was measured at 25 °C…

A: The pressure which is applied to a solution to stop the inward flow of pure solvent through semi…

Q: The limiting molar conductivities of KF, KCH3CO2, and Mg(CH3CO2)2 are 12.89 mS m2 mol−1, 11.44 mS m2…

A:

Q: Find the molar conductivity of aqueous solutions of LiCl and MgCl2 at infinite dilution at 25°C

A: Molar conductivity is defined as the conductance of a solution with electrolyte (attached on the two…

Q: 4. The vapor pressures of pure C5H12 and C6H14 at 298.15K are 511 torr and 150 torr, respectively.…

A:

Q: A and B form an ideal solution. At a total pressure of O.900 bar, yA = 0.450 %3D and XA = 0.650.…

A: 1- First calculate the partial pressure of B :  We know that, in vapour phase of B  yB = ( PB /…

Q: Which of the following conditions is NOT necessary for diffusion to occur? a.) a difference in…

A: Diffusion is the movement of particles from an area of high concentration to an area of low…

Q: Looking at the following image of a curve of partial pressures vs mole fractions of the two…

A: An ideal solution is one that obeys Raoult's law at all temperatures and pressure. According to…

Q: In the determination of molar mass of an unknown substance by ebullioscopic constant, 30 mL of…

A: We have , boiling temperature of acetone (pure solvent) = 56°C Boiling temperature of solution =…