Question

Define: Normality, molarity, molality mole fraction.

Answer 1

Molarity (M) is defined as the number of molesof solute per liter of solution.
molarity = moles of solute/liters of solution

Molality (m) is defined as the number of molesof solute per kilogram of solvent.
molality = moles of solute/kilograms of solvent

Normality (N) is defined as the number of mole equivalents per liter of solution:
normality = number of mole equivalents/1 L of solution

Answer 2

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☆ Molality (m) is defined as the number of moles of solute per kilogram of solvent.

☆ Molarity is a measurement of the moles in the total volume of the solution, whereas molality is a measurement of the moles in relationship to the mass of the solvent.