21.6g alcohol /100g mouthwash .0358pint mouthwash density .0876g/ml. how many kilograms in 180 bottles? Help?

Question

Can someone show me how to do this?

Answer 1

180 bottles @ 0.358 pt/bottle = 64.44 pints

64.44 pints @ 473.2 ml / pint = 30490 ml

30490 ml @ 0.0876 g / ml = 2670grams

2670 grams @ 21.6 g alc / 100 = 577 grams of alcohol (0.577 kg)

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but  the density of an alcohol/water should really be 0.876 g/ml

let me re-work using  a density of 0.876 g/ml

180 bottles @ 0.0358 pt/bottle = 64.44 pints

64.44 pints @ 473.2 ml / pint = 30490 ml

30490 ml @ 0.876 g / ml = 26700grams

26700 grams @ 21.6 g alc / 100 = 5770 grams of alcohol (5.77 kg)