Question

define molarity, molality, formality, normality

Answer 1

hey!!
here is ur answer
1.MOLARITY=no of moles of solute/volume of solution in litre.
unit-M,molar,mol/litre
2.MOLALITY=no of moles of solute/weight of solvent in kg.
unit-m,molal,mol/kg
3.FORMALITY=no of formula mass of solute/volume of solution in litre.
no of formula mass=given mass of solute/molecular mass of solute(with change molecular mass)
unit-formal,F
4.NORMALITY=no of gram equivalents of solute/volume of solution in litre.
no of gram equivalents of solute-given mass/equivalent mass
equivalent mass-molecular mass/n-factor
unit-normal,N,gequivalent/litre

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