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Chemistry
Mylie Cruz
4 January, 17:35
What is the percent by mass of oxygen in al2o3?
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Zoie Santana
4 January, 18:20
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mr oxygen = 16. 16 x 3 = 48
mr Al2O3 = 27 + 27 + 48 = 102
(48/102) X 100% = 47.05% oxygen
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