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**Problem**: Determine the pOH of a solution that is 0.135 M in CO32 - .

###### FREE Expert Solution

###### FREE Expert Solution

$\overline{){\mathbf{K}}_{\mathbf{b}}\mathbf{}\mathbf{=}\frac{\left[{{\mathrm{HCO}}_{3}}^{-}\right]\left[{\mathrm{OH}}^{-}\right]}{\left[{{\mathrm{CO}}_{3}}^{2-}\right]}}\phantom{\rule{0ex}{0ex}}\mathbf{1}\mathbf{.}\mathbf{8}\mathbf{}\mathbf{\times}\mathbf{}{\mathbf{10}}^{\mathbf{-}\mathbf{}\mathbf{4}}\mathbf{=}\frac{\left(x\right)\left(x\right)}{\mathbf{0}\mathbf{.}\mathbf{135}\mathbf{}\mathbf{-}\mathbf{}\mathbf{x}}$

###### Problem Details

Determine the pOH of a solution that is 0.135 M in CO_{3}^{2 - }.

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Based on our data, we think this problem is relevant for Professor Williamson's class at TAMU.