View Full Version : Q on Top Score G-Chem test #2 Q 50of 30


bruinguy083
08-24-2007, 12:15 PM
How do they calculate the energy for 2h20? why is it multiplied by 4, as in 4 moles of o-h? TIA for the help

D.D.S.
08-24-2007, 01:28 PM
How do they calculate the energy for 2h20? why is it multiplied by 4, as in 4 moles of o-h? TIA for the help

I kinda remember this problem so ima take a shot at it. I think its because of the bonds in water.

H-O-H has two OH bonds (two hydrogens bonded to one oxygen). Since there are two water molecules, you will have 4 OH bonds. Hard to explain, but hope this helps..

z123
08-24-2007, 01:52 PM
I agree w/ D.D.S.