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Harlamova29_29 [7]

3 years ago

10

A chemist needs a 70% solution of tannic acid. How much distilled water must he add to 5 gallons of a 90% solution of acid to ob

tain the 70% solution?

1 answer:

kolezko [41]3 years ago

6 0

<span>4.5 + 0 = 3.5 + 0.7x
1 = 0.7x
x = 1/0.7
x = 1.43 gallons of distilled water
Hope this helps!!</span>

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