anonymous
  • anonymous
A druggist wants to reduce a 20-ounce quantity of a 7% solution of iodine to a 4% solution by adding pure alcohol. How much alcohol must he add to accomplish this?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Heeeellllppp !
anonymous
  • anonymous
LOL i am getting a negative answer ~.~
anonymous
  • anonymous
lol ahaha, well that kinda sucks =/

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anonymous
  • anonymous
whats the answer in any case?
dumbcow
  • dumbcow
iodine_before = iodine_after to find the amount of iodine, multiply volume by concentration x is amount of alcohol added --> 20(.07) = (20+x)(.04) 1.4 = .8 +.04x .6 = .04x 15 = x

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