Question

The diagram below is the pe-pH for Selenium (Se). Insert the species below in the correct corresponding regions (1-6) where they are dominant. Se^0, H_2SeO_3, HSeO^2-_3, SeO^2-_3, HSeO^2-_4, SeO^2-_4

Answer 1

$HSeO_{4}^{-}$          in region 1

$SeO_{4}^{-2}$            in region 2

$H_{2}SeO_{3}^$         in region 3

$HSeO_{3}^{-}}$         in region 4

$SeO_{3}^{-2}}$           in region 5

$Se^{^{0}}$                 in region 6