Question 970095
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32 grams of 25% solution contains (0.25)(32g)=8 grams of antiseptic.
8 grams is 10% of (8g)/0.10=80 grams 
80 grams-32 grams=48 grams 
ANSWER: You should add 48 grams of water to 32 grams of 25% solution to make a 10% solution.