Chemistry

In this reaction, 4.58 L of O2 were formed at 745mm Hg and 308 K. How many grams of Ag2O decomposed.
2 Ag2O----> 4 Ag + O2
Please help I'm very confused

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  1. Use PV = nRT and solve for n = moles oxygen.
    Use stoichiometry to convert moles O2 to moles Ag2O, convert to grams Ag2O

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