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Sagot :
The molality of a solution prepared by dissolving 84.7 g of kmno4 in 165 g of water is 3.25m
What is molality?
Molality is a measure of number of the moles of solute in a solution corresponding to 1 kg or 1000 g of solvent. This contrasts with definition of the molarity which is based on a specified volume of solution.
The term molality is formed in analogy to the molarity which is molar concentration of a solution. The earliest known use of intensive property molality and of its adjectival unit, now-deprecated molal, appears to have been published by G. N. Lewis and M. Randall in the 1923 publication of Thermodynamics and Free Energies of Chemical Substances. Though two terms are subject to being confused with the one another, the molality and molarity of a dilute aqueous solution are nearly same, as one kilogram of water (solvent) occupies volume of 1 liter at room temperature and a small amount of solute has little effect on the volume.
Therefore,
molality = moles of solute / kg solvent, "m"
=0.535mol/0.165kg
=3.25m
To know more about volume visit: brainly.com/question/28058531
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