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What is the percentage mass of oxygen in cocaine?

Updated: 4/28/2022

Wiki User

∙ 8y ago

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Cocaine is C17H21NO4 and has a molar mass of 303.353 g/mole. Mass of oxygen in cocaine is 4x16 = 64. So, % oxygen by mass is 64/303.353 (x100) = 21% (to 2 sig. figs)

Wiki User

∙ 8y ago

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Wiki User

∙ 8y ago

The percentage mass of oxygen in cocaine is 21,122 %.

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