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0.5 g O(2) gas is collected over water a...

0.5 g `O_(2)` gas is collected over water at `20^(@)C` and 730 mm pressure. If aqueous tension at that temperature be 14.20 mm, what is the volume of `O_(2)` gas collected?

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Verified by Experts

`p_(O_(2))=(730-14.20)mm" "Hg=0.9418 atm`
`p_(O_(2)) xx V_(O_(2))=nRT`
or, `0.9418xxV_(O_(2))=(0.5)/(32)xx0.0821xx293`
`therefore V_(O_(2))=0.399L=399` cc
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