Question

1) You are in charge of a remediation strategy that requires aerobic, microbial respiration to degrade the compound ethanol in groundwater. There is 840mg/L ethanol in the groundwater; how much oxygen (total, steady state concentration in mg/L) will you need to completely oxidize the ethanol to CO2? Can you accomplish this using only atmospheric oxygen (21% v/v) at 1 atm total pressure (Pror) and 25°C? If you cannot, what options do you have for increasing oxygen content of the water? Name at least three. For this: Ethanol, C2H, m mass 46.1 g/mol Oxygen, O2, mol mass 32 g/mol (though it may be good to start remembering this...) KH 02 at 25° 0.0013 mol L atm

Answer 1

GNen data homgl ethanal hthe ghound otes cthanol, Ct0 mol. mass- 6.1 gimol Ong gon, 02 mol mas= 32 gimol K07 at 25c = 0-0013 mol Lat C02 t6 H20 2 C2 HOH 602 4 2 Mole ehanol 6 mole o, male of ethanol O-840g O.0182 mole 46-1 2 mole ehano wes6mole 02 6-0182 mole O.018 2 =0.054bmole 2. O2 n mylL 0 0546 x 32 1-7499 -1749 mglL So, We lan Not Onfdise Cthanol becuse we Deed D-0546 mole. Penesswne bynusty hlouettemptatoe dksoung To in Chease onygen Cantent - Vaue amount 4ongen