Konsentrasi COD Larutan Gula Merah

Sampel gula        = 1 gram

Demin                   = 99 ml 

Larutan                 = 100 ml              

Konsentrasi        = 0.01 gram/ml 

                                = 0.01 x 10³ gram/l

= 10 gram/l

                                = 10000 mgram/l

                                =  10000 ppm

=  1 %

Analisa :

1.       COD       = 8000  ppm

= 8000 mgram/l

= 8 gram/l           

= 8 x 10⁻³ gram/ml

= 0.008 gram/ml

= 0.8 %

                Konsentrasi COD dalam 1 gram gula         = 0.8/1 x 100 %

                                                                                                = 80 %

                                                                                                = 0.8 gram