A) What mass in grams of H20 is needed to react completely with 40.0 g of Na2O2?

M(H2O) =18.02g/mol
M(NA2O2)= 78g/mol

Ecuation:

2Na2O2 (s)+2h2O(I)—> 4NaOH(aq) + O2 (g)

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