What volume of water should be added to ...

What volume of water should be added to 300 mL of 0.5 M NaOH solution so as to get a solution of 0.2 M ?

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Verified by Experts

The correct Answer is:

450 mL

Applying molarity equation :
`overset(("Dilute"))(M_(1)V_(1))-= overset(("Conc."))(M_(2)V_(2))`
`0.2xxV_(1)=0.5xx300orV_(1)=(0.5xx300)/(0.2)=750` mL
`:.` Volume of water to be added `= 750-300 = 450 mL`.

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