The sum of mole fraction of all components of a solution is unity.

Assertion (A): The sum of mole fractions of all the component of a solution is unity. Reason (R ): The mole fraction is a temperature dependent quantity.

Assertion: The sum of mol fractions of all the components of a solution is unity. Reason: Mole fraction is temperature dependent mode of concentrations.

The sum of the mole fraction of the components of a solution is

Sum of mole fractions of the two components of a solution is

The units of mole fraction of a compound in solution are-

A chemist prepared a solution by adding by 230 g of pure ethanol (C_(2)H_(5)OH) to 144 g of water. Calculate the mole fractions of these two components. The molar masses of ethanol and water are 64 g and 18 g , respectively. Strategy: To calculate the mole fractions, we must find the number of moles of ethanol and of water. To find the moles, we must divide the given mass by the respective molar mass. In a two-component system made up of A and B molecules, the mole fraction of a component of a solution, say, component A is written chi_(A) and is defined as Mole fraction of component A= chi_(A) =("moles of A")/("sum of moles of A and B")

A solution contains 2.5 mol of H_(2) O . Calculation the mole fraction of each component of the solution.

The plot of total vapour pressure as a function of mole fraction of the component of an ideal solution formed by mixing liquids X and Y is