some q's! (1 Viewer)

[Premus]

Hey

Just a couple of questions:

1) the pH of water solutions containing O2 gas dissolved in water, and O2- ion dissolved in water are compared.
Are they acidic, basic or neutral?

2) does ethanol have dispersion forces?

Thanks!

 

[xiao1985]

Hey

Just a couple of questions:

1) the pH of water solutions containing O2 gas dissolved in water, and O2- ion dissolved in water are compared.
Are they acidic, basic or neutral?

2) does ethanol have dispersion forces?

Thanks!

ok, O2 has are neutral... they dissolve to a very small extent, and do not ionise... hence the pH would not be changed... however, i believe O 2- can undergo the following reaction with water:

O2- + H2O <--> 2OH-
hence making the soln basic...


q2: any substance containing electron(s) have dispersion forces... is just that for ethanol, its hydrogen bonding is comparatively more significant than the dispersion forces...

edit: stupid tags won't show up... >.< '

 

[jm1234567890]

ok, O2 has are neutral... they dissolve to a very small extent, and do not ionise... hence the pH would not be changed... however, i believe O 2- can undergo the following reaction with water:

O2- + H2O <--> 2OH-
hence making the soln basic...

...

huh? That equation doesn't ballance...

but, yeah O2 doesn't ionise in water

 

[Premus]

so which forces allow ethanol to act as a solvent?
Hydrogen bonding, polar, dispersion?

Thanks

 

[jm1234567890]

ethanol has te O=H and which allows it to do hydrogen bonding

 

[Xayma]

huh? That equation doesn't ballance...

but, yeah O2 doesn't ionise in water

O^2-+H₂O <----> 2OH^-

It balances.

 

[jm1234567890]

O^2-+H₂O <----> 2OH^-

It balances.

lol, yeah

i was wondering why it was O₂^-