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If i add water to 100 mL of a 0.15M NaOH solution until the final volume 150mL , what will the molarity of the diluted solution be ?

Sagot :

pyromorphite
0,15 moles of NaOH-------in------------1000ml
x moles of NaOH------------in--------100ml
x = 0,015 moles of NaOH

final volume = 150ml

0,015 moles of NaOH---in-------150ml
x moles of NaOH--------------in-----1000ml
x = 0,1 moles of NaOH

answer:  0,1mol/dm³  (molarity)
mahima6824soni

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.

What is molarity?

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.

Learn more about molarity

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