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 ?

What volume of water should be added to 300 mL of 0.5 M NaOH solution

1.	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 ?
Answer» Solution :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`.