Asked by Madison

Hydrogen peroxide(H2O2) slowly decomposes to form water and oxygen gas. Calculate the mass of Hydrogen peroxide needed to obtain 0.460L of oxygen gas at STP

Answers

Answered by DrBob222
2H2O2 ==> 2H2O + O2
mols O2 gas = 0.460L/22.4 = ?
Using the coefficients in the balanced equation, convert mols O2 gas to mols H2O2.
Now convert mols H2O2 to grams. g = mols x molar mass.
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