0.02 molal solution of potassium iodide freezes at -0.25OC. What is the percentage dissociation?

Q: An aqueous solution is made by dissolving 19.8 grams of manganese(II) sulfate in 353 grams of water.…

A: Molality is the way to express the concentration of solution as the ratio of moles of solute per…

Q: The vapor pressure of an ideal aqueous glucose, C6H12O6, solution at 37 deg C is 10.4 torr. Compute…

A: We know that , Mole fraction of A = No of moles of A / Total number of mole present in that system.…

Q: Which of the following is a dimensionless quantity; molarity, molality or mole fraction?

A: A dimensional quantity from the following has to be selected.

Q: The normal boiling point of diethyl ether is 34.58C. A solution containing a nonvolatile solute…

A: The normal boiling point of diethyl ether is 34.58 °C. A solution containing a non-volatile solute…

Q: The boiling point of a 1.50 m (molal; moles solute/kg solvent) aqueous solution of LiI would be…

A: The elevation in boiling point is calculated as ∆Tb = i × Kb × m Here, ∆Tb = elevation in boiling…

Q: Show the calculation steps that could be used to calculate the molality if given the mass of a…

A: Molality of solution can be defined as the number of moles of solute dissolved per kilogram of…

Q: The molar mass of unknown molecular compound is determined using freezing point depression. The…

A: Freezing point (Tf) - Temperature at which vapor pressure of solid exactly equals to vapor pressure…

Q: Explain how you determine the freezing point of a solution that does not have a well-defined…

A: Answer -  freezing point of a solution - The effect of adding a solute to a solvent has the opposite…

Q: etermine the molal concentration of a solution that contai ass of methanol is 32 04 g/mol

A: We have to find the molal concentration that is also known as molality  Given Mass of solvent…

Q: Calculate the molality of a 1.76M aqueous solution. The solute has a molar mass of 120.5g/mol, and…

A:

Q: An aqueous solution contains 5% NACl by mass. Calculate the molality and mole fraction.

A: Interpretation -  To determine the molality and mole fraction of an aqueous solution contains 5%…

Q: Under what condition molality and molarity are identical. Explain with suitable reason.

A: Under what condition molality and molarity are identical has to be given.

Q: Calculate the molality of KCl in the solution.

A: Molality is defined as number of moles of solute present per kilogram of solvent. It is represented…

Q: What mole fraction of solvent will be present in an aqueous solution that is 0.858 m in sucrose?

A: Given,  Concentration of aqueous solution is 0.858 m

Q: Calculate the molality of 1 molar solution of NaOH given density of solution is 1.04 gram/ml.

A:

Q: Define the terms, ‘osmosis’ and ‘osmotic pressure’.What is the advantage of using osmotic pressure…

A: Solutions are made of solute and solvent molecules. Several properties are there for measuring the…

Q: Suppose that 98.0g of a nonelectrolye are dissolved in 1.0 kg of water. The freezing point of this…

A:

Q: A solution is 55.5 % chromium (III) sulfate by mass. The density of this solution is 1.89 g/mL.…

A: Given: Density of solution = 1.89 g/mL. And percent by mass of Chromium (III) sulfate i.e. Cr2(SO4)3…

Q: A solution contains only sucrose and water. If the mole fraction of sucrose is 0.0558, determine the…

A: Molality can be determined from mole fraction of solute using the given formula,

Q: In 400. g of water at 50 degrees Celsius, approximately what mass of substance C will dissolve?

A: AT 50o C 100 g of H2O dissolve 30g of substance C .

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: Calculate for the freezing point depression (ΔTf) when 137 grams of acetone (C3H6O, 58.0 g/mol) is…

A:

Q: If a certain mass of an ionic solute is added to a solvent such as water, which of the following…

A: The temperature at which the liquid changes to a solid. is known as the freezing point. The freezing…

Q: If a certain mass of an ionic solute is added to a solvent such as water, which of the following…

A: Freezing factor depression is one of the colligative properties of matter, because of this that it's…

Q: Disinfectants has a 3.0% (by mass) concentration of hydrogen peroxide (H2O2) in water. If the…

A: Given,  Mass percent of H2O2 in solution = 3.0%  Density of the solution = 1.0 g/cm3  a. Calculate…

Q: How can we calculate the Vapor Pressure of a Two-Component Solution?

A: The measure of ability to material to convert into the gaseous state (or) vapor state is known as…

Q: Determine the moles of solute in a 350g solution that is 2.5 molal.

A: We are given molality and mass of solution. we would use formula of molality to calculate moles.

Q: Silver nitrate has a lattice energy of -8.20X102 kJ/mol and a heat of solution of +22.6kJ/mol.…

A: Heat of solution(∆Hsolution): It can be defined as the heat released or absorbed when 1 mol solute…

Q: The colloidal solution consider as particles with radius of range- ----- O 10 5 - 10 7 cm O 10-7 -…

A: By the analysis of the particles size in the different Solution , we can classify this solution in…

Q: A sample of commercial concentrated hydrochloric acid is 11.8M and has a density of 1.190 g/mL.…

A:

Q: Calculate the total pressure of an ideal solution consisting of 0.678 mol of benzene and 0.414 mol…

A:

Q: Sodium hydroxide is available commercially as 50.0% by weight aqueous solution. Calculate the…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: Copper sulfate- molar mass-159.609g/mol c at saturation-1.380mol/L solubility-115.659 ksp-?

A: Given, molar mass-159.609g/mol c at saturation-1.380mol/L solubility-115.659

Q: At a certain temperature, diethyl ether has a vapor pressure of 400.0 torr. When a sample of benzoic…

A: vapour pressure of diethyl ether = 400 torr = Posolvent vapour pressure of the solution = 342 torr =…

Q: A solution of 2.0g of an organic compound in 120g benzene has a freezing point of 4.20˚C. Compute…

A: Given data contains, Mass of organic compound is 2.0 g. Mass of benzene is 120 g. Molal depression…

Q: The vapor pressure of pure acetone (propanone) is 266 torr. When a non-volatile solute is added, the…

A: Answer: This question is based on Raoult's law.

Q: The solubility of sucrose near 0°C is 65% by weight. What is the maximum freezing point depression…

A: The maximum freezing point depression has to be calculated The grams of sodium chloride would create…

Q: A 7.50 g sample of a nonvolatile, non-electrolyte is dissolved in 75.0 g of water.  The solution…

A:

Q: If the mole fraction of water in NaCl aqueous solution is 0.75, calculate the molality of NaCl in…

A: Answer: Molality of a solute in a solution is the ratio of its number of moles with the mass of…

Q: An aqueous solution of ammonium nitrate has a concentration of 0.238 molal. The percent by mass of…

A: Molality (m) is defined as the number of moles of solute dissolved per kilogram of the solvent, i.e.…

Q: Calculate the concentration of 1 molal solution of NaOH in terms of percentage by mass.

A:

Q: At a certain temperature, diethyl ether has a vapor pressure of 550.0 torr. When a sample of benzoic…

A: Given: The vapor pressure of diethyl ether = 550.5 torr. The vapor pressure of the solution (when…

Q: A certain substance X has a normal freezing point of 4.1 °C and a molal freezing point depression…

A: Given that:  Freezing point of pure substance X (Tf°) = 4.1°C Kf = 2.09°C Mass of urea = 34.1 g…

Q: Concentrated aqueous ammonia contains 1.06 mol dissolved in 2.44 mol H2O. What is the mole fraction…

A: Given, Moles of ammonia (nNH3) = 1.06 mol Moles of water (nH2O) = 2.44 mol Mole fraction Ammonia…

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.