CVEN9884: Microbiochemical - Equotion or Charts - Microbiochemical Assignment Help

Internal Code : 1AJFCG

Microbiochemical Assignment Help

TASK The following describes a simplified soil system where CO2 from bacterial respiration in soil is dissolved in the soil pore water [CO2]T = 10-3 M. The system is assumed to have reached equilibrium at standard state (P = 1 atm, T = 25 °C). So the Recipe is [CO2]T = 10-3 M and pure water. The species in the system are: (H2O), H+ , OH- , H2CO3*, HCO3 , CO32- write the reaction equations relevant for water and the carbonate system describing the system. Make sure that the equilibrium constants are consistent (i.e. at standard state). Construct a tableau for the system. Write all the mole balance equations and the mass law equations for the problem as they are defined by the tableau. Verify that the mole balance equations satisfy the condition of electro-neutrality (charge balance). What is the alkalinity of the system? Create a log C vs. pH diagram for the system. Devise an algebraic solution (using the equations). Calculate pH and the concentration of all relevant species. Calculate an updated value of the dominant carbonate specie based on the calculated carbonate species concentrations and the mole balance equation for total carbonate. Now consider a system containing both [CO2]T =10-3M and [K2HAsO4]T =2·10-5M. Construct a tableau for the combined system. Write all the mole balance equations (satisfying the tableau) and the mass law equations for the problem as defined by the tableau. [Marks 3] Verify that the mole balance equations satisfy the condition of electro-neutrality (charge balance). What is the alkalinity of this combined system? Devise an algebraic solution for the combined system. Calculate pH and the concentration of all relevant species. Devise and use a numerical scheme to iterate a more exact solution, by updating the dominant carbonate and arsenate species iteratively.