Question

what is the hydroxide ion concentration of a solution that has a ph of 8.57

Answer 1

pH = 14 + log[OH]
8.57 = 14 + log [OH]
-5.43 = log [OH]
10^-5.43 = [OH]
3.71535229 × 10-6 = [OH]

Answer 2

so 3.71535229 x 10-6 ?

Answer 3

yes.

Answer 4

thank you i have a nother question though

Answer 5

3.71535229 × 10-6 = [OH]

Answer 6

What does the equation 2h2o(l) <--> h3o+(aq) + OH-(aq) represent

Answer 7

it is the self-ionization of water.

Answer 8

once again thank you