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I have 1 Liter of 35% alcohol, and i wish to increase it's concentration to 75%...

I have 1 Liter of 35% alcohol, and i wish to increase it's concentration to 75% alcohol by adding 95% alcohol. How much 95% alcohol i need so i can reach 75% alcohol?
please include formula thanks

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Answer #1

Let V be the volume of 95% alcohol added (in liters).

Hence, The final volume will become (1+V).

Equation of mixing:

We have:

C1 = 35% = 0.35

C2 = 95% = 0.95

V1 = 1 liter

V2 = V

C3 = 75% = 0.75

Hence, Volume of 95% alcohol added (in liters) is given by:

  • That is 2 liters of 95% alcohol should be added to reach 75% alcohol.

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