What is the mass percent composition of manganese and oxygen in the oxide? Given: 3.144g of manganese reacts with oxygen to produce 6.348g of manganese oxide.

Md Ariful Islam

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3,144 gr 6,348 gr xMn + yO =˃ MnxOy 55x 55x +16y 3,144×(55x+16y)=6,348 × 55x 172,92 x + 50,304y = 349,14x 50,304y=176,22x y=3,5x x=2 y=7 Answer: Mn2O7
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