A COD test was carried out on a batik factory wastewater. The relevant information is as follows, Volume of potassium dichromate standard solution 0.1N Volume of wastewater sample Wastcwater sample dilution Fe" standard solution Volume of Fe“ standard solution needed for wastewater sample Volume of Fe" standard solution needed for distilled water 10.0 mL %3D 20.0 mL 10X %3| %3D 0.JN 21 13.55 mL 34.70 mL Calculate the COD value for the batik factory wastewater.

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A COD test was carried out on a batik factory wastewater. The relevant information
is as follows,
Volume of potassium dichromate standard solution (0.1N
Volume of wastewater samnple
Wastcwater sample dilution
Fe2* standard solution
Volume of Fe“" standard solution needed for wastewater sample
Volume of Fe“ standard solution needed for distilled water
10.0 mL
20.0 mL
%3D
10X
0.1N
13.55 mL
34.70 mL
Calculate the COD value for the batik factory wastewater.
Transcribed Image Text:A COD test was carried out on a batik factory wastewater. The relevant information is as follows, Volume of potassium dichromate standard solution (0.1N Volume of wastewater samnple Wastcwater sample dilution Fe2* standard solution Volume of Fe“" standard solution needed for wastewater sample Volume of Fe“ standard solution needed for distilled water 10.0 mL 20.0 mL %3D 10X 0.1N 13.55 mL 34.70 mL Calculate the COD value for the batik factory wastewater.
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