The calculated molarity is 2.5 M. Molarity (M), which is the quantity of solute in moles divided by the volume of solution, is the most widely used unit to express solution concentration.
The amount of a substance in a specific volume of solution is known as its molarity (M). The number of moles of a solute per liter of a solution is known as molarity. The molar concentration of a solution is another name for molarity.
Molality is defined as the product of the number of moles of solute and the mass of the solvent in kilograms (kg).
NaOH has a mass of 10g, a molar mass of 40 g/mol, and a mass of 100g, or 0.1 kg, for water.
Molality is therefore 10/400.1 = 2.5 m.
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