The concentration of a biodegradable organic matter (modeled as C6H11ON2 ) in the wastewater is 74mg/L. a) With the help of microbes C6H11ON2 is oxidized into three products CO2,H2O, and NH3. Calculate the carbonaceous theoretical chemical oxygen demand (CThCOD, in mg/L ). b) More oxygen is needed to further oxidize NH3 to NO3. Based on two chemical reactions offered below how many extra moles of O2 is needed per mole of C6H11ON2 to oxidize NH3 ? 2NH3+3O22NO2+2H++2H2O2NO2+O22NO3 Knowing this extra number of O2 moles to oxidize N-component, calculate the nitrogenous theoretical chemical oxygen demand (NThCOD, in mg/L ) for this water sample. c) Finally, calculate the ultimate theoretical COD (UThCOD) for this water sample