For 5ml of coffee into 15ml of water, the dilution of the coffee is mathematically given as
X=0.25ml
Generally, the equation for the Total volume is mathematically given as
Tv =inital v+final volume
Therefore
Tv=5ml+15ml
Tc=20ml
In conclusion, Ther extent of diluti\on is
X=5/20ml
X=0.25ml
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