How many grams of hydrogen peroxide, H2O2, must decompose by the following reaction to produce 0.400 moles of O2?
2 H2O2(aq) 2 H2O(l) + O2(g)
A) less than 25 grams
B) between 25 and 40 grams
C) between 40 and 60 grams
D) between 60 and 80 grams
E) more than 80 grams
Correct Answer:
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