# Problem: What is the [OH-] in a solution that has a pH of 11.70?a. 5.0x10-3 Mb. 2.0x10-12 Mc. 1.0x10-7 Md. 2.0x102 Me. 5.0x1011 M

###### FREE Expert Solution

We’re being asked to calculate [OH-] in a solution that has a pH of 11.70.

The OH- concentration can be calculated from pOH using the following equation:

$\overline{)\left[{\mathbf{OH}}^{\mathbf{-}}\right]{\mathbf{=}}{{\mathbf{10}}}^{\mathbf{-}\mathbf{pOH}}}$

The pH and pOH of a compound determine its acidity and basicity.

###### Problem Details

What is the [OH-] in a solution that has a pH of 11.70?

a. 5.0x10-3 M
b. 2.0x10-12 M
c. 1.0x10-7 M
d. 2.0x102 M
e. 5.0x1011 M

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the pH and pOH concept. You can view video lessons to learn pH and pOH. Or if you need more pH and pOH practice, you can also practice pH and pOH practice problems.