Alcohol

How much 56% alcohol do we need to pour into 22 liters 78% alcohol to get p3% alcohol? How much 76% alcohol do we get?

Correct answer:

V1 =  2.2 l
V3 =  24.2 l

Step-by-step explanation:

r1=56%=10056=2514=0.56 V2=22 l r2=78%=10078=5039=0.78 r3=76%=10076=2519=0.76  r1 V1+V2 r2=(V1+V2) r3 0.56 V1+22 0.78=(V1+22) 0.76  0.2V1=0.44  V1=0.20.44=2.2  V1=511=2.2=2.2 l
V3=V1+22=2.2+22=24.2 l



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