If water is added to 100 ml of a 0.15 M NaOH solution until the final volume of 150 ml. The molarity of the diluted solution is 0.1 mol. L.
Molarity is the measure of the concentration of any solute per unit volume of the solution.
[tex]Molarity = \dfrac{mole\; of \;solute}{volume \;of \; solution} \\[/tex]
Moles of solute is [tex]0.15 mol. L^-^1 \times 100 \times 10^-^3 \;L[/tex]
Volume is 150 ml
Putting the value
[tex]Molarity = \dfrac{0.15 mol. L^-^1 \times 100 \times 10^-^3 \;L}{150\; ml} =0.1 mol \times L[/tex]
Thus, the molarity of the diluted solution is 0.1 mol. L.
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