How much pure alcohol must be added to bring the solution up to 27% alcohol?
2007-06-15 22:01:14 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
I used to hate these problems, but they're simple.
OK, if you have 1 liter of 0.22 alcohol, that's .22 liters of alcohol. If you add more alcohol, you increase this alcohol content, but also the overall volume . . . Let V be the original volume (1 liter). Then we want to know when
(amount of alcohol)/(total volume) = 0.27
If we let x be the volume of alcohol added, then
(0.22V + x)/(V +x) = 0.27
solve for x.
It's about 68mL if I did the math right.
2007-06-15 22:18:10 · answer #1 · answered by supastremph 6 · 0⤊ 0⤋
.5 liter
2007-06-16 05:40:39 · answer #2 · answered by nah_too_drunk 3 · 0⤊ 0⤋
nooooooooooooo!!!! this kind of stuff is the reason I failed algebra 3 times!
2007-06-16 05:03:34 · answer #3 · answered by Anonymous · 1⤊ 0⤋