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Answer to Question #79322 in General Chemistry for Arlena
Question #79322
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.
Given: 3.144g of manganese reacts with oxygen to produce 6.348g of manganese oxide.
Expert's answer
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
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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