A 400 ml solution contain 15 % ethanol . howmuch quantity of ethanol to be added in solution to make the ethanol concentration 32%?
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400ml has 15% alcohol i.e 60ml . This means we have 340ml of water or the liquid with which alcohol is mixed
Let V be the volume of alcohol added to make the strength 32%
then V/340+V = 32/100. solving this we get V as 160ml
so we need to add 160 -60 = 100ml of alcohol
A-100ml
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