At 20 °C, the vapor pressure of benzene 1C6H62 is 75 torr, and that of toluene 1C7H82 is 22 torr. Assume that benzene and toluene form an ideal solution. (a) What is the composition in mole fraction of a solution that has a vapor pressure of 35 torr at 20 °C? (b) What is the mole fraction of benzene in the vapor above the solution described in part (a)?

Q: The normal freezing point of ethanol (CH3CH2OH) is -117.300 ºC.  In a laboratory experiment,…

A: The freeing point depression is observed on the addition of solute in a solvent, which is a…

Q: A solution containing 0.7880g of polymer of unknown structure in 170.0 mL of an organic solvent was…

A: Given that, for a polymer solution, The mass of the polymer in the solution is m2 = 0.7880 g, The…

Q: The partial molar volumes of acetone and chloroform in a mixture in which the mole fraction of…

A: Given, The partial molar volume of acetone and trichloromethane in a mixture in which the mole…

Q: The following data table indicates the solubility of a substance. By examining the data presented,…

A: Every ten degree increase decrease the solubility by 0.65mM e.g  5 degree 5.00mM solubility increase…

Q: Calculate the molality of alum and the molality of the cream of tartar in the solution of mordant.…

A: Given: mass of Alum = 2 g mass of cream of tartar = 1 g Volume of water = 100 mL molar mass of Alum…

Q: What is the vapor pressure (kPa) of water at 25 °C above an aqueous solution that is 10.6% by mass…

A:

Q: One tenth of a kg of an aqueous solution of HCl is poured into 0.2 kg of an aqueous solution of…

A: The mass of HCl and water are calculated as,

Q: Predict the ideal solubility of lead in bismuth at 280 °C given that its melting point is 327 °C and…

A:

Q: What are the molality and mole fraction of solute in a35.5 percent by mass aqueous solution of…

A: Given that: Mass percent of formic acid = 35.5 % To find: molality  mole fraction

Q: At 25oC the vapor pressure of pure benzene is 93.9 torr. When a non-volatile solvent is dissolved in…

A:

Q: when 5.0g of an unknown substance is dissolved in 100.0g of water, the freezing point of the…

A:

Q: The enthalpy of solution for ammonium perchlorate NH4 CIO, is +33.47 kJ/mol. How many grams of…

A:

Q: The osmotic pressure of an aqueous solution of a non-ionic solute is 120 kPa at 300 K. Assuming that…

A:

Q: A 300 mg sample of caffeine was dissolved in 10.0 g of camphor (Kf = 39.7°C/m), decreasing the…

A: The depression in the freezing point (∆Tf) can be expressed as follows-

Q: Calculate the following:  The vapor pressure of benezene, C6H6 at 25C in an ideal solution…

A: In accordance to Raoult’s law, solutions in an ideal mixture exert their individual pressures.  This…

Q: If the boiling-point elevation of an aqueous solution containing a nonvolatile electrolyte is…

A: Boiling point elevation can be defined as a phenomenon in which the boiling point of liquid will be…

Q: Suppose you have a solution containing liquids A and B where the mole fraction of A is 0.40.…

A: We will calculate first Ptotal and them use formula for mole fraction in vapour phase.

Q: The lattice enthalpy of magnesium iodide, MgI2, is -2505 kJ/mol and it's enthalpy of solution is…

A: Given:  Lattice enthalpy, L =  -2505kJ/mol Enthalpy of solution = -213.3 kJ /mol

Q: A mixture of benzene and toluene forms an ideal solution. The partial pressure for benzene and…

A: At constant temperature, The partial pressure of benzene (Pb) is 24.65 torr. The partial pressure of…

Q: Determine the molality of a 5.001 wt % aqueous solution of LICl.

A:

Q: The vapor pressures of benzene and toluene at 25°C are 94.6 and 29.1 Torr, respectively. Find the…

A: Given : Vapour pressure of pure benzene = 94.6 torr Vapour pressure of pure toluene = 29.1 torr Mole…

Q: The molality (moles per kg of water) of a 1.000 M solution of silver nitrate (FW 169.9 amu; AgNO3)…

A: The density of solution, d = 1.140 g/mL Molarity of solution, M = 1 M Molar mass of solute, Ms =…

Q: Can an aqueous solution be prepared that is 30% by mass KNO3 at 20oC?

A:

Q: The osmotic pressure of a 3.30 mL solution containing 0.181 g of protein dissolved in water is…

A:

Q: Assuming complete ionization and appropriate van’t Hoff factors, if you dissolve 25.0 g of sodium…

A: The ionization of sodium phosphate is:

Q: What is the molality of HCI in a aqueous solution in which the mole fraction of HCI is 0.220?

A: Given - - > Mole Fraction of HCl = 0.220 Molality of HCl = ?

Q: How do the presence or absence of partial charges at the molecular scale help explain a liquid's…

A:

Q: Enumerate at least two colligative properties and explain its principle

A: Colligative properties are the properties of solution which depends only upon the number of moles of…

Q: 1. Calculate the mole fraction of each component of a solution containing 65 g of ethanol (C 2 H 6…

A:

Q: Ammonium carbonate is a strong electrolyte and it disocciate into two NH4+ and one CO32- . If the…

A:

Q: Glucose from molasses is fermented to alcohol using S. cerevisiae where 500 ml of CO2 (at standard…

A:

Q: An experiment conducted at 20 oC requires an atmosphere in which the partial pressure of water is a…

A: Vapor pressure of pure water, P◦w = 17.3 torr Vapor pressure of pure ethylene glycol, P◦e = 0.056…

Q: The molar mass of the hormone is 775.7473684g/mol. What is the osmotic pressure in kpa of a 0.145M…

A:

Q: A solution of hydrochloric acid in water is 38.00% hydrochloric acid by mass. Its density is 1.1886…

A: Given information: Mass percent of hydrochloric acid = 38.00 % Density = 1.1886 g cm-3

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: If the solubility of barium fluoride at a temperature of 20 degrees Celsius, 0.16gm / 100ml of…

A:

Q: Calculate the vapor pressure of benzene, C6H6, at 25°C in an ideal solution containing 1.66 mol of…

A: According to Raoult's law; vapour pressure of a component of a mixture = vapor pressure of pure…

Q: Camphor (MW = 104 g/mole) melts at 179.8 °C, and it has a particularly large freezing point…

A:

Q: An aqueous solution of mass of 100 g of aqueous copper II sulfate CuSO4.xH₂O was prepared by…

A:

Q: The solubility of carbon dioxide in water at 25°C and 1 atm is 0.034 mol/L. What is its solubility…

A: We have to predict the solubility of the gas.

Q: Calculate the molality of an alcohol in aqueous solution if the mole fraction of the alcohol is…

A:

Q: A nonvolatile solute is dissolved in benzene and the resulting solution has a vapor pressure of 20.5…

A:

Q: An experiment conducted at 20 oC requires an atmosphere in which the partial pressure of water is a…

A: GIVEN: Vapor pressure of pure water= 17.3 torr Vapor pressure of pure ethylene glycol = 0.056 torr…

Q: The mole fraction of sodium chloride, NaCl, in a saturated aqueous solution is 0,220. What is the…

A: Given that the mole fraction of sodium chloride, NaCl, in a saturated aqueous solution is 0,220.…

Q: *5.47. A nonideal solution contains na of substance A and nB of substance B and the mole fractions…

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.