A chemical laboratory would like to mix 3% acid solution to 7% of another solution.
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1. How many milliliters of 7% acid solution are needed to get 5% of acid solution in
20 milliliters amount?
a. 4
b. 6
c. 8
d. 10
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Answer:
C .
Step-by-step explanation:
7% \24 , 5% = 8
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