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A solution has 80% (w)/(w) NaOH with den...

A solution has `80% (w)/(w) NaOH` with density `2gL^(-1)` Find (a) Molarity (b) Molality of solution .

Text Solution

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Let `V_(lit)` be vol of solution
Mass of solute `(d xx V) xx ((%(w)/(w)))/(100)=2xxVxx(80)/(100)=1.6V`
(a) `M = (1.6V//40)/(V) = 0.04M" " (b)" " m=(1.6V//40)/(2V-1.6V)xx1000=100"mol"kg^(1)` .
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