+ O270 Identify the type of chemical reaction represented by the balanced equation. [1]
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71 Calculate the total mass of H2O2 in 20.0 grams of an aqueous H2O2 solution that is used as an antiseptic. Your response must include both a numerical setup and the calculated result. [2]
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SET UPS (1 point) 3= (x/20.0g) x 100% or (20)(0.03) Answer 0.6g (1 point) |
72 Determine the gram-formula mass of H2O2. [1]
Answer=34g/mol (no sig figs) H2O2 ; H= 2(1) O=2(16) Add them |