5.00 grams of vanadium metal have been allowed to react with 20.0 grams of perbromic acid. If the reaction actually yields 2.25 L of hydrogen gas (at stp), what is the percent yield?

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5.00 grams of vanadium metal possess been undisputed to rebound after a while 20.0 grams of perbromic animated. If the reboundion in-effect surrenders 2.25 L of hydrogen gas (at stp), what is the percent surrender?
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