2h2o2 ------>2H2O+O2?

1 ⤊

2h2o2 ------>2H2O+O2?

In the decomposition equation above, how many grams of oxygen is made when 15.0 grams of H2O2 decomposes?
canyou please help?

2007-01-19 07:23:13 · 2 answers · asked by princess 1 in Science & Mathematics ➔ Chemistry

2 answers

15g/(34g/mol) = 0.44mol H2O2

then there will be half of the moles of O2 that there are H2O2 because of the given equation, so you have 0.22mol O2 produced

0.22mol(32g/mol) = 7.0g of O2 produced

2007-01-19 07:35:25 · answer #1 · answered by fleisch 4 · 1⤊ 0⤋

only 7.5 grams of oxygen is made bc the composition of this compound is 50% oxygen.

2007-01-19 07:32:03 · answer #2 · answered by Scooter 2 · 0⤊ 2⤋