Answer
$9.76$ $mols$ $O$
Work Step by Step
Use a mole ratio in order to determine the number of moles of oxygen atoms in each compound.
$4.88 mols$ $H_{2}O_{2}$$\times\frac{2 mol O}{1 mol H_{2}O_{2}}$ $=9.76$ $mols$ $O$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.