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Mathematics, 25.02.2021 14:00 chiquita77

What is the percent of oxygen by mass in C2H4O2?
(H: 1.00 amu, C: 12.01 amu, O: 16.00 amu)

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What is the percent of oxygen by mass in C2H4O2?
(H: 1.00 amu, C: 12.01 amu, O: 16.00 amu)...
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