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During the determination of the partial molal quantities the weight of the solution to which a substance is added is taken into consideration while in case of the partial molar quantity the volume is taken into consideration.

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12y ago

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How 1 molal urea solution is equal to 0.5 molal NaCl solution?

In order to compare the molality of two solutions, you need to consider the number of particles the solute separates into in a solution. Urea (CH4N2O) separates into one particle in solution, while NaCl separates into two particles. Therefore, 1 molal urea solution is equal to 0.5 molal NaCl solution because NaCl produces twice as many particles in solution as urea.


Is the molal and molar solution of NaCl the same?

yes


How much is a molal?

A molal is a unit of concentration that represents the number of moles of solute per kilogram of solvent. It is calculated by dividing the number of moles of solute by the mass of the solvent in kilograms.


Does molal elevation constant depend on nature of solvent?

This is a colligative property which does not depend on the nature of solute is the molal boiling point elevation constant or ebullioscopic constant of the solvent.


Which is more concentrated one molar NaCl or one molal NaCl?

They are equivalent. Molal is now an obsolete, not recommended term.


How can one determine the molal concentration of a solution?

To determine the molal concentration of a solution, you need to divide the moles of solute by the mass of the solvent in kilograms. This calculation gives you the molality of the solution, which is expressed in moles of solute per kilogram of solvent.


What is the boiling point of a 2.0 molal solution of glucose?

The boiling point is 101 oC.


What is is the molality of 3.00 of NaCL and 1.50kg?

m = moles/kg = 3.00/1.50 = 2.00 molal


What is molal depression constant?

Molal depression constant (Kf) is a colligative property constant that relates the lowering of the freezing point of a solvent to the molality of a solute in the solution. It is specific to each solvent and typically expressed in units of °C kg/mol.


What mass of Kl is contained in 2.5L of water if the solution is labeled 2 molal?

Aprox. 830 g.


What mass of KI is contained in 2.5L of water if the solution is labeled 2 molal?

Approx. 830 g potassium iodide.


What is the freezing point depression constant for water?

The freezing point depression constant for water is 1.86 degrees Celsius per molal.