The mole fraction of solute in an aqueous solvent is 0.1. The molality of the solution is ------ m.

Answer

`6.17`

Explanation

Mole Fraction of Solute: The mole fraction of any solution refers to the moles of solute divided by the sum of the moles of solute and moles of solvent. We would like to determine the mole fraction of the solvent.
`x _("solvent") = 1 - x _("solute")`
`=1- 0. 1 = 0.9`
Assuming, moles of water `= 0.9 and ` moles of solute = 0.1
Mass of water
`= 0.9 xx 18 = 16. 20 g = 0. 0 162 kg`
Molality `= ( "mol solute")/("Mass of solvent (kg)") = ( 0.1)/( 0. 0 162) = 6.17 m`