A pharmacist has 100 ounces of a solution that is 3 1/2 %idoine and 96 1/2% alcohol. How much alcohol should the pharmacist add to 1 1/2 % idoine solution?

Leroy Gray

Leroy Gray

Answered question

2022-09-03

A pharmacist has 100 ounces of a solution that is 3 1/2 %idoine and 96 1/2% alcohol. How much alcohol should the pharmacist add to 1 1/2 % idoine solution?

Answer & Explanation

Brooklynn Valencia

Brooklynn Valencia

Beginner2022-09-04Added 18 answers

100 ounces of solution, 3.5% is iodine, that is 100*.035 = 3.5ounces of iodine
100 ounces of solution, 96.5% is alcohol, so there's 96.5 ounces of alcohol
Let x be the number of ounces of alcohol required to raise the solution's concentration of iodine to 1.5%.
3.5 100 + x = .015
3.5 = 1.5 +.015x
2 = .015x
x = 133.33 ounces
The pharmacist needs to put 133.33 more ounces of alcohol in.

calcific5z

calcific5z

Beginner2022-09-05Added 2 answers

Right now he's got 3.5 oz of iodine. Find out how many grams the solution needs to be for 3.5 oz to be 1.5%.
3.5/0.015 = 233.3 oz.
233.3 oz - 96.5 oz = 133.3

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