A chemical factory has been illegally disposing their chemical wastes without necessary pretreatments directly onto a river. To assess the extent of contamination, the H+ concentration of the river at 4 different sampling sites were obtained and shown below. Complete the table with the missing data. Site A В D Distance from the chemical 0 km 2.0 km 4.0 km 8.0 km factory [H+], mol/L 3.16 x 102 3.98 x 103 2.00 x 10-5 2.51 x 108 pH pOH

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