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What volume of hydrogen at STP required ...

What volume of hydrogen at STP required to reduce 7.95 grams of cupric oxide to give metal? 

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Cupric oxide is reduced to copper on treating with hydrogen
`CuO+H_(2)rarr Cu+H_(2)O`
1 mole of `CuO -= 1` mole of `H_(2)`
79.5 grams of `CuO -=`22.4 L of `H_(2)` at STP 
7.95 grams of `CuO -= ?`
Volume of hydrogen required at STP =
`(7.95)/(79.5)xx22.4=2.24L`
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