CBSE Class 11-science Answered
A 6.90 M solution of aqueous KOH has 30% by weight of KOH. Calculate density of solution
Asked by | 24 Jun, 2008, 09:05: PM
Expert Answer
Suppose,the density of the given solution is d g/ml
Mass of KOH in 1 litre solution=6.9 x 56=386.4g
Mass of 1 litre solution = 1000 xdg
Since the solution contains 30% by mass of KOH, we have
(1000 x d) x 30
----= 386.4
100
386.4 x100
Or d =---------------------= 1.288g/ml
1000x30
Answered by | 06 Jul, 2008, 01:31: PM
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