stupid question... got it

[CrazyPerson]

hydrogen ion concentration of solution with pH 9?

is this right...

pH= -log 9

??

 

Why don't you just take those three steps. I'm so confused by your post I have no idea what you're even asking.

 

[CrazyPerson]

pH= -log 10 [H+]
[H+] = 10 ^-10 moles/liter...

??

 

[minendo]

ph = -log [H+]

9=-log [H+]

 

[CrazyPerson]

i know... that.. so

[H+] = 10 ^-10 moles/liter ???

 

[CrazyPerson]

pH= 3.0
[H+] = 10-pH
[H+] = 10-3.0 = 0.001mol L-1

 

[minendo]

Originally posted by: CrazyPerson
i know... that.. so

[H+] = 10 ^-10 moles/liter ???

In correct scientific format it would be 1 x 10^-9.