percentage of oxygen by mass in water is what?

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percentage of oxygen by mass in water is what?

2007-12-11 02:20:29 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

3 answers

very easy the mass of H2O is 18 , 16 for oxygen and 2 for the hydrogens
So, % of oxygen mass =(16/18)*100=88.9%

2007-12-11 02:25:58 · answer #1 · answered by maussy 7 · 0⤊ 0⤋

The molecular weight of water is 18.
The % oxygen is 16/18 x 100 = 88.88%

2007-12-11 02:24:44 · answer #2 · answered by Just Me 5 · 0⤊ 0⤋

the proportion is the comparable, considering the fact that in all situations the water molecules incorporate 2 hydrogen atoms and ONE oxygen atom. That determines the mass ratio, and the composition of water does not, of course, exchange from one area to a distinctive.

2016-12-17 14:28:46 · answer #3 · answered by Anonymous · 0⤊ 0⤋