A pharmacist need to strengthen a 15% alcohol solution to one of 32% alcohol. How much pure alcohol should be added to 800ml of 15% solution?
Answers
Answered by
74
100мℓ
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%
тнєи
V/340+V = 32/100. solving this we get V as 160ml
so we need to add 160 -60 = 100ml of alcohol
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%
тнєи
V/340+V = 32/100. solving this we get V as 160ml
so we need to add 160 -60 = 100ml of alcohol
Answered by
43
Answer:
Step-by-step explanation:
200 ml
Let x ml of Sol is added
Alcohol 15% of 800. =120 ml
120+x= total amount of alcohol now
Out of 800+x Sol
In%.{( 120+x) ÷ (800+x)}100%
Solve these to get the ans
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