Question 1136322
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I have food grade hydrogen peroxide that requires you to make a mix
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Who?  



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make a mixture of 11% water and 3% hydrogen peroxide. How much would that be in ounces say 10 ounces. 
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What else is in the mixture you want to make?  What is the concentration of the "food grade"  Hydrogen Peroxide?  If only the two materials, then  11% water means 89% of the "food grade" material; and if 3% Hydrogen Peroxide, then you need to know the concentration of the food grade Hydrogen Peroxide.