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molecular physics - summer task

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Task 3.

When 20 ml mixture of O2 and O3 is burned, the volume became 29 ml and invisible in basis Pyrogallol solution.
What is the volume in% of Oxygen gas in real mixture?
asked Jul 11, 2017 in Physics by miller (160 points)

1 Answer

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The reaction equation
2O3 → 3O2
3/2 x+y=29
1/2 x=29-20=9
The volume % of Oxygen gas in real mixture is
2/20 100%=10%.
answered Jul 11, 2017 by admin (2,270 points)