What is the OH of a solution whose pH is 8.23?

Answer 1

The pH tells you the concentration of H+ ions in the solution according to this formula pH = -log [H+] (where the square brackets mean "the concentration of" whatever is inside the brackets) So, if you have the pH, you can find the concentration of H+ from this: [H+] = 10-pH If the pH is 5.00, then 10-5 = 1 x 10-5 M = 0.00001 moles per liter But that's [H+], not the concentration of [OH-]! But those two are related like this: [H+] * [OH-] = 10-14. So to find [OH-], we use: [OH-] = 10-14 / [H+] In this case, [OH-] = 1 x 10-9 M

Answer 2

The OH concentration can be calculated using the formula: 14 - pH = pOH. In this case, pOH = 5.77. To find the OH concentration, you take the antilog of the pOH value, which is 10^-5.77 = 1.96 x 10^-6 M.

Answer 3

pH = -log[H+]

[H+] = 2.51 x 10-6 M pH + pOH = 14.

So pOH = 14 - 5.6 = 8.4

pOH = -log[OH-]

[OH-] = 3.98 x 10-9 M

Answer 4

1/108.23 or ( 10-8.23 )

= 5.89 x 10-9 M OH-