Suppose that an HPLC column produces Gaussian peaks. The detector measures absorbance at 254 nm. A sample containing equal moles of compounds A and B was injected into the column. Compound A ${\mathbf{E}}_{\mathbf{254}}\mathbf{=}\mathbf{2}\mathbf{.}\mathbf{26}\mathbf{\times }{\mathbf{10}}^{\mathbf{4}}{\mathbf{M}}^{\mathbf{-}\mathbf{1}}{\mathbf{cm}}^{\mathbf{-}\mathbf{1}}$has a height h=128mm and a half-width ${\mathit{w}}_{\mathbf{1}\mathbf{/}\mathbf{2}}\mathbf{=}\mathbf{10}\mathbf{.}\mathbf{1}$mm. Compound B ${\mathbf{E}}_{\mathbf{254}}\mathbf{=}\mathbf{168}\mathbf{\times }{\mathbf{10}}^{\mathbf{4}}{\mathbf{M}}^{\mathbf{-}\mathbf{1}}{\mathbf{cm}}^{\mathbf{-}\mathbf{1}}$has ${\mathit{w}}_{\mathbf{1}\mathbf{/}\mathbf{2}}\mathbf{=}\mathbf{7}\mathbf{.}\mathbf{6}$mm. What is the height of peak B in millimeters?

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